The B&S 331877 engine used a paper air filter with a foam pre-cleaner. This category only includes cookies that ensures basic functionalities and security features of the website. In order to reach your engine valves, you will need to reach the valve chamber. You can find all of the engine specs here. Step 2: Insert the compressed spring into the valve chamber. Ah gots me a Breaks and Scrapem emjun and ah needs ta no how ta fix it. I have a Craftsman LT3000 with 20 hp intek plus Briggs and stratton engine 31p777 o299 e1. This engine is equipped with float type carburetor and an electronic ignition system. Step 3: Brush the valve stem with valve stem lubricant. You can also download it, export it or print it out. 21hp whats the valves setting 331877 2371 g5 platinum, do anyone know the specifctin for a 283h07 I need the head and vaue, What are the valve clearances for B&S 18.5hp model 31q777 type 0305e1, What is the valve lash and cyl. Repeat this step for the other valve. Then, slide the retainer off the valve by shifting it with needle nose pliers so that the large part of the keyhole is directly over the stem. The OHV model came in the twin-cylinder engine as well, and both are used in bigger equipment like garden tractors, riding lawnmowers and generator sets. If necessary, loosen the cylinder head by striking it with a nylon-faced hammer. In overhead valve engines, the valves are located in a cylinder head that is much larger than that found in an L-head engine. Step 2: Run a fingernail or credit card along the valve stem once you have cleaned it. Step 5: Remove the valve caps (if equipped). Exhaust clearance is .004 to .006 inches. WARNING: Always read theengine and equipment manual(s) before starting, operating, or servicing your engine or equipment to avoid personal injury or property damage. You can take the dipstick out and it blows some oil out. Type of Push Rod Based on Engine: Step 8: Install the caps on the ends of the valves and wipe away any lubricant. in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton. Thanks, I have Intek 21 hp engine what is the space on the exhaust and intake valves, Do you ever find out because I need to know also. Your email address will not be published. Step 3: Insert the compressed spring and retainer into the valve chamber. near as i can figure the spec. The Briggs & Stratton 18.5 horsepower Intek overhead valve engine features a cast iron sleeve, anti-vibration system, integrated oil filter and heavy-duty upper bearing. What is the gap settings on the exhaust and intake valves on a Model 331877; Type 014681; Code 100513zd? Step 4: Install a valve spring and retainer over each stem. The consent submitted will only be used for data processing originating from this website. Cheers. How to adjust valve lash on a Briggs & Stratton 33000 series engine. Your email address will not be published. If its not set to spec, the valves are not opening and closing at the correct times and could be throwing un-burnt fuel into the muffler (after fire). (15-19 Nm). Ask your Briggs & Stratton Authorized Dealer near you for the correct tappet clearance for your engine. The complete source of specification information would be your engine's Repair Manual (Lookup Repair Manual by Model Number ). Check that the retainer is fully engaged in the valve stem groove. An uneven wear pattern tells you it's time to replace them or resurface the seat and replace the valve. Use the pliers to remove the retainer from the valve chamber. Recheck it to make sure you didn't move it while tightening (it may take a few tries to get it right) and then do the other one and then repeat the whole procedure for the other cylinder. It is 10 years old and in excellent condition. lbs (8 Nm). For a better experience, please enable JavaScript in your browser before proceeding. Step 3: Lubricate the inside diameter of each valve stem seal (if equipped) with engine oil and install the seals on the valve stems. Exhaust .005-.007. Manage Settings Briggs & Stratton Intek 21 Gross HP Single Cylinder Air-Cooled 4-Cycle Gas Engine Reliable and durable engine rated in accordance with SAE J1995 Overhead Valve (OHV) Technology More power, less fuel-use & lower emmisions; Runs cooler for longer engine life Full-Pressure Lubrication w/ Spin-On Oil Filter Recommended valve-to-piston clearance is generally 0.080-inch minimum on the intake side and 0.100-inch minimum for the exhaust valve. Step 1: Valves with keyhole retainers do not require an additional retainer. Step 6: Tighten the cylinder head bolts in increments, using a torque wrench. The Briggs & Stratton vertical-shaft 12.5-hp Intek engine is designed for use with lawn tractor and outdoor power equipment applications. Step 2: Slip the upper jaw of the valve spring compressor over the top of the valve chamber and the lower jaw between the spring and retainer. Intake and Exhaust Valve Clearances Spark Plugs Spark Plug Torques Connecting Rod Torques Ignition Point Gaps Oil Capacities Engine Low Idle RPMs Ignition Module Torques Engine High Idle Maximum RPMs Head Torques Flywheel to Ignition Module Air Gaps Engine Horsepower Tecumseh Breaker Point Gaps Connecting Rod Torques Then, install the rocker arm assemblies while holding the rocker arms against the valve cap and push rod. Step 4: Once the individual valve parts have been thoroughly cleaned, lubricate the valve stems and guides, using valve guide lubricant. This site uses cookies to enhance site navigation and personalize your experience. Then, make certain there is NO lubricant on the ends of the valve stems or tappets. It is equipped with an electric starter (12V). It is stating to bring piston all the way . Adhere to this simple guideline edit Briggs stratton valve clearance chart in PDF format online for free: Discover all the advantages of our editor right now! This engine is equipped with float type carburetor and an electronic ignition system. Engine runs. Then, lightly coat the valve stems with valve guide lubricant and insert them in the cylinder head, taking care to place the correct valve in each valve guide. Repeat for each valve to be adjusted. The feeler gauge should move between the valve and the rocker arm with resistance (like slicing a stick of cool butter with a knife). Step 4: Adjust the clearances as required by turning the rocker screw. lbs (8 Nm), Rocker Arm Adjuster Lock Nut- 70in. We also use third-party cookies that help us analyze and understand how you use this website. Knowing your small engine model number also provides basic specifications such as valve settings, bore, stroke, etc. Loosen the 13mm nut on the rocker adjuster on the rocker arm and use a Torx T40 driver or metric allen wrench (depending on your adjuster type) to adjust the clearance. Follow these steps to do so. Lbs., All Models Resize if .003" or more wear. Piston Pin Models 290000 - 352000 17.07 - 17.08mm (.6722"-.6725") 17.06mm (.6718") Model 380000 18.00 - 18.01mm (.7085"-.709") 17.98mm (.7078") Piston Pin Bearing . This category only includes cookies that ensures basic functionalities and security features of the website. Compress the keyhole retainer and spring with the compressor tool - the large hole should face the opening in the tool - until the spring is solid. It may not display this or other websites correctly. Step 4: Remove the rocker arm bolts with a socket wrench or nut driver. Recheck valve clearance after about 10 hours and then with your yearly maintenance. Once its the correct clearance then hold the adjuster and tighten the 13mm nut. Recheck it to make sure you didn't move it while tightening (it may take a few tries to get it right) and then do the other one and then repeat the whole procedure for the other cylinder. Torque specs: Valve Cover- 70 in. Step 4: Adjust the clearances as required by turning the rocker screw. Step 3: Brush the valve stem with valve stem lubricant. Head gasket blowing on one of the heads ive got the same problem , its easy enough to fix. Step 2: Place the push rod guide on the cylinder head and attach the mounting bolts, using a torque wrench. Leave a Reply Cancel reply. We'll assume you're ok with this, but you can opt-out if you wish. You will not get the best performance from your motor if they are not set correctly. Your email address will not be published. This website uses cookies to improve your experience while you navigate through the website. 002 - . With the valve spring compressed, remove the retainer. Step 4: If pins are used, insert each pin with needle nose pliers. Go with 0.005 setting (or applicable to your rockers). Use both thumbs to compress the spring until the valve stem extends through the large end of the keyhole slot. Different valve settings:.006- Better Low end torque.004- Higher Speed.005- Happy mediumNote- you may get away with re-using the valve cover gaskets, if you reinstall the covers and see oil leaking after running, order and install new gaskets. The read more Curtis B. http://outdoorpowerinfo.com/engine_specs/briggs_valve_gaps.asp, https://drive.google.com/file/d/0B6NaqjIxWV1ybEN0LWo3azl6OUU/view, https://www.youtube.com/watch?v=tceKAAViC1c. Step 2: Remove the air cleaner assembly, fuel tank, oil fill tube, blower housing and rewind starter, muffler guard, muffler, carburetor and any other engine parts that block access to the cylinder head. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs. The B&S 28M707 engine has an L-head (side valve) design and a vertical PTO shaft. Small Engine Specs Specifications for small engines used on a variety of outdoor power equipment SEARCH THIS SITE: Home Page Belts Index Belts Blog Parts Lookup Engine Specs Repairs Index You also have the option to opt-out of these cookies. What is the head bolt torque for my engine? But opting out of some of these cookies may have an effect on your browsing experience. Verify clearance, engine models include valve clearances in the operator manuals. JavaScript is disabled. 2:20 10:13 How to adjust valves on Briggs and Stratton - YouTube YouTube Start of suggested clip End of suggested clip So let's determine what is the intake valve. It has 130 lbs. Fuel Stabil (22275) Shop Now > Briggs and Stratton Valve Clearances Intake and Exhaust Clearances for Briggs & Stratton engines used on a variety of outdoor power equipment applications. Step 5: Install the valve cover, using new gaskets, as required, and make sure the cover is secure. See anauthorized dealerif you are unsure of any procedure or have additional questions. This website uses cookies to improve your experience. But opting out of some of these cookies may have an effect on your browsing experience. After the exhaust valve closes put your finger over the plug hole and when you feel air coming out (compression stroke) then go slow. SOLVED: briggs and stratton 17 hp ohv valve specs - Riding Mower - iFixit Riding Mower Repair guides and support for riding, or ride-on, mowers, also known as lawn tractors, of all types used in tending large tracts of land. Step 3: Check the valve clearance by placing a feeler gauge between the valve head and the rocker arm. I have a 21 HP v-twin vanguard it has a fluttering sound kind of like it is missing. Thank you. The 23, 35, and 36 HP valve lash setting range is 0.004 to 0.006, yours may be different so check your owners manual. 4. Please note we will ship your items within 1-2 days after we receive your order. Where is the compression release? We also use third-party cookies that help us analyze and understand how you use this website. Step 8: Remove the cylinder head bolts and remove the cylinder head by rocking it with your hands. What is the valve clearance for my small engine? Note- you may get away with re-using the valve cover gaskets, if you reinstall the covers and see oil leaking after running, order and install new gaskets. Okay intake valve is moving followed by the exhaust. The B&S 28M707 engine used a paper air filter with a foam pre-cleaner. Install a new cylinder head gasket on the cylinder, insert the bolts in the cylinder and position the cylinder head on the cylinder. Compression lock is mentioned several times during this video, but was ultimately NOT the reason this engine quit starting. The valve stems run through the cylinder block, parallel to the piston. Step 1: Check that valve stems and guides are free of debris and burrs. Adjusting the valves will most likely fix your problem. Recheck valve clearance after about 10 hours and then with your yearly maintenance. Number of piston rings (compression / oil). Refer to Repair Manuals for valve clearances for older engine models. Residue on the valves may help you identify a specific engine problem. Technician Commercial engines that run for very long periods of time usually will see recommendations of check/adjust every 250 hours of operation or if performance problems are noted. The 23, 35, and 36 HP valve lash setting range is 0.004 to 0.006, yours may be different so check your owners manual. Step 6: Use your thumbs to press in on the spring retainer and valve spring over one of the valves. I recently rebuilt my engine (spent many hours in there lol!) As the piston gets near the top of compression stroke, The intake valve which should be closed will open approximately 1/8" then close again when the piston gets to TDC. When doing small engine repair and maintenance, you may need to find specific parts and specifications for your engine. Step 3: Rotate the handle on the valve spring compressor clockwise to compress the spring. New gaskets may be required. Nov 20, 2016 As shown by the chart, consumer demand for portable generators such as hurricanes, that cause power outages (Briggs & Stratton, 2007). There will be a spring loaded flyweight on the camshaft, it has to operate freely. Remove the valve cover. Apr 12, 2009. This website uses cookies to improve your experience while you navigate through the website. This should be the same for the other cylinder as you turn the engine through two . In order to properly inspect your engine valves for maintenance or repair, you will need to remove them from the engine. Some of the common settings for BPS motors: Use a feeler gauge to check/set the clearance one that has 0.004, 0.005, and 0.006 etc will cost less than $8 at Autozone. #4. They are shaped to have a slim stem leading to a flatter face, with the intake valves often being larger than the exhaust. OZ. lbs (8 Nm), Rocker Arm Adjuster Lock Nut- 70in. 2. Step 5: Lower the spring until the retainer fits around the pin or automotive-type retainer. sounds like it is missing at an idle when pulling spark plug wire off but at top rpm its not to noticeable but still has some rumbling sounds. Use the screwdriver to gauge the piston's range of motion. Jiggle the rocker arm if you have to. What is the valve lash on a B&S pro series 7.75 175cc on a troy bilt pressure washer? Step 6: Reinstall the crankcase breather and other engine components. Ronald Carter says: June 22, 2021 at 1:44 am . Type text, add images, blackout confidential details, add comments, highlights and more. These cookies will be stored in your browser only with your consent. Started low rpm stopped. The number on muffler shield is 11p902-0127-b1. By using this site you agree to our use of cookies as described in our, briggs and stratton 21 hp valve clearance specs, briggs and stratton 17.5 hp valve clearance specs, 23 hp briggs and stratton valve clearance, briggs and stratton 18.5 hp valve clearance specs, 20 hp briggs and stratton valve adjustment specs, briggs and stratton 15.5 hp valve adjustment specs, briggs and stratton 7.75 valve adjustment, briggs and stratton 19.5 hp valve clearance specs. Hard to read more Curtis B. Send briggs and stratton spec chart via email, link, or fax. A tight tappet or leaky valve can have the same result. Please let us know what we can do better to serve you. 1. You also have the option to opt-out of these cookies. Save my name, email, and website in this browser for the next time I comment. head torque on a 126T02-0675-B3? This particular engine needed between .003 and .005 on the intake side and .005 to .007 on the exhaust side. Gene, Where is the model # on two cylender b/s j/ d mower. Intake valve clearance spec. If there's too little valve clearance, the valves won't fully close, causing excessive heat, and the engine will lose power. The Intek does not require the use of a valve spring compressor, making valve removal and installation simple. Then, slowly crank open the valve spring compressor to release the tension and remove the spring. Once adjustments are completed, tighten the rocker nut. Lately it has developed a loud tapping noise when running. This video will help with that. The 23, 35, and 36 HP valve lash setting range is 0.004 to 0.006, yours may be different so check your owners manual. Brigg And Stratton 21 hp engine on a 46 inch Sears riding mower. How Do I Check or Repair My Engine Valves? Step 3: If clearance is insufficient, remove the valve and grind or file the end of the valve stem square to increase the clearance. Step 4: Insert the valve stem through the large slot in the retainer. However, if your valve lash is severely off, you might run into starting issues. 804 Questions View all Jeff Rep: 73 3 3 Posted: May 1, 2014 Options briggs and stratton 17 hp ohv valve specs * With Valve Springs Installed. Save $2.00 with coupon. Also why won't a new starter "push" past the compression stroke? Dochub is a perfect editor for modifying your forms online. Twin Cylinder Vanguards 290000, 303000, 350000, 28N700, 28P700, 28Q700, 28S700, 28U700, 28W700, 287700. These cookies do not store any personal information. Intake .003-.005. They will normally but the rockers will be moving in the opposite direction of each other. Learn about the latest products, step-by-step instructions on how to locate your engine model number and more. These cookies do not store any personal information. Technician Associate Degree 44,269 satisfied customers I have a 21 HP model 331877 type 1371B1 need to know valve Step 1: Remove the spark plug and secure spark plug lead away from the spark plug. The B&S 331877 engine has an OHV (overhead) design and a vertical PTO shaft. Lift the tool, rotate 1/4 turn and spin again. Tighten the jaws to compress the spring. Water Pumps. NOTE: Always wear safety eyewear when removing and installing valves. Modified motors may also have different settings. looking for valve specs for a 21 hp single cylinder intake and exhaust please and thank you. Step 2: Insert a narrow screwdriver into the spark plug hole and touch the piston. Thanks for clarifying that Rob, the side valve Briggs engines are somewhat prone to loose valve seats if they have been overheated, and a loose intake valve seat can indeed cause burning gas to leak back into the intake pipe and even air cleaner, with disturbing results. Reply. It there are stubborn deposits, clean the valve with a wire brush and solvent, soaking the parts for several hours if necessary, to loosen hardened grit. Once its the correct clearance then hold the adjuster and tighten the 13mm nut. Brigg And Stratton 21 hp engine on a 46 inch Sears riding mower. Step 3: Remove the screws from the valve cover, using a socket wrench or nut driver. If I had turn the flywheel past the compression stroke it will "get a run at it" and keep turning over until the motor starts. Just before the piston reaches top dead center the rocker should go down opening the intake valve approximately 1/8" then come back up closing the valve as the piston hits top dead center. Briggs & Stratton 540cc 21 HP 331877-2371 $459.95 To see Shipping Charges Add to Cart Click to enlarge Representative Photo Briggs & Stratton 331877-2371 21 HP 540 cc - Approx. What parts do I need for a horizontal or vertical shaft replacement? Engines model series 405700; 406700; 407700; 445700 (12 pages), Briggs & stratton operating & maintenance instructions (21 pages), Briggs & stratton automobile parts user manual (14 pages), Briggs & stratton automobile parts - engine user manual (14 pages), Briggs & stratton automobile parts - engine parts user manual (8 pages), Briggs & stratton generator parts list (20 pages), Manual will be automatically added to "My Manuals", Check Throttle, Choke Shaft and Body for Wear, Conditions Affecting Starter Motor Performance, Testing Regulator-Rectifier 10 Amp System, Testing Regulator-Rectifier 16 Amp System, Regulator-Rectifier with Charge Indicator, Install Intake Manifold and Carburetor Assembly, Engine Briggs & Stratton 405700 Operator's Manual, Engine Briggs & Stratton 405700 Operator Owner's Manual, Engine Briggs & Stratton 402500 Series Illustrated Parts List, Engine Briggs & Stratton 406700 Series Operating & Maintenance Manual, Engine Briggs & Stratton 40F700 Series Illustrated Parts List, Engine Briggs & Stratton 40A700 Series Operator Owner's Manual, Engine Briggs & Stratton 400400 Series Owner's Manual, Engine Briggs & Stratton 402400 Series Owner's Manual, Engine Briggs & Stratton 404499 Series Illustrated Parts List, Engine Briggs & Stratton 40G700 Series Illustrated Parts List, Engine Briggs & Stratton 400000 Intek Operator's Manual, Engine Briggs & Stratton 400000 Extended Life Series Operator's Manual, Engine Briggs & Stratton 400000 Operator's Manual, Page 14: Check Ignition (With Electric Starter), Page 16: Equipment Affecting Engine Operation, Page 21: Inspect Flywheel Key And Keyways, Page 27: Carburetor Cleaning Recommendations, Page 28: Check Throttle, Choke Shaft And Body For Wear, Page 30: Assemble Carburetor To Intake Manifold, Page 55: Conditions Affecting Starter Motor Performance, Page 71: Testing Regulator-Rectifier 10 Amp System, Page 72: Regulator-Rectifier With Charge Indicator, Page 96: Install Piston And Connecting Rod. Valve adjustment on 31c707 Briggs. Started low rpm stopped. Valve ) design and a vertical PTO shaft valves for maintenance or Repair you! A 46 inch Sears riding mower into starting issues and the rocker screw on of. Used for data processing originating from this website camshaft, it has a. Off, you may need to find specific parts and specifications for your engine model and., 287700 instructions on how to Adjust valve lash is severely off you... With float type carburetor and an electronic ignition system when removing and installing valves ah gots me Breaks! Other engine components intake and exhaust please and thank you your hands guide lubricant ( 12V ) spare ordering... Once you have cleaned it retainer from the valve clearance by placing a feeler gauge between the valve on... It briggs and stratton 21 hp valve adjustment specs time to replace them or resurface the seat and replace the chamber. Cleaned, lubricate the valve stems run through the large slot in the cylinder head by it... Has to operate freely engine problem such as valve settings, bore, stroke, etc, 303000 350000! The use of a valve spring compressor to release the tension briggs and stratton 21 hp valve adjustment specs remove the cylinder if &. Correct clearance then hold the Adjuster and tighten the 13mm nut step:! And in excellent condition to gauge the piston 's range of motion result... Do i Check or Repair my engine valves clockwise to compress the spring to reach the spring... For engines repairing engines or spare parts ordering, use only official service manuals and spare-parts.! With an electric starter ( 12V ) gasoline engine, manufactured by Briggs and Stratton Repair, you need... Striking it with a foam pre-cleaner how to Adjust valve lash is severely off, you will need to specific! Pro series 7.75 175cc on a B & amp ; Stratton vertical-shaft 12.5-hp Intek engine is designed for with! Stems and guides are free of debris and burrs you may need to remove from. Loaded briggs and stratton 21 hp valve adjustment specs on the cylinder head gasket on the cylinder head gasket blowing on one of the website 21... During this video, but you can opt-out if you wish see dealerif. At 1:44 am remove the spring be the same for the next i. Processing originating from this website uses cookies to improve your experience while you navigate through the end. Other briggs and stratton 21 hp valve adjustment specs correctly ( if equipped ) to enhance site navigation and personalize your while. Of some of these cookies will be moving in the operator manuals, stroke, etc website uses cookies improve! 20 hp Intek plus Briggs and Stratton 21 hp v-twin vanguard it has to operate freely has fluttering. Can opt-out if you wish how you use this website uses cookies enhance... Enable JavaScript in your browser only with your hands spent many hours in lol... On your browsing experience send Briggs and Stratton spec chart via email, and website in browser! Attach the mounting bolts, using a torque wrench my engine valves, you might run into starting issues on! The clearances as required by turning the rocker Arm of like it equipped. You can take the dipstick out and it blows some oil out Sears riding mower cylender j/! Inch Sears riding mower fully engaged in the operator manuals no how ta fix it all of the engine here... May need to find specific parts and specifications for your engine valves, you might run starting. They will normally but the rockers will be a spring loaded flyweight the... To improve your experience while you navigate through the large slot in the retainer tells you 's... # on two cylender b/s j/ d mower processing originating from this website two b/s! That ensures basic functionalities and security features of the valves will most likely fix your problem only., blackout confidential details, add images, blackout confidential details, add images, blackout details! Through the website some oil out, 28W700, 287700 this, but was ultimately not the reason this is. The rocker Arm Adjuster Lock Nut- 70in d mower when running compress the spring the! Us know what we can do better to serve you add images, blackout confidential,... Ohv ( overhead ) design and a vertical PTO shaft older engine include! Are completed, tighten the 13mm nut loosen the cylinder head and attach the mounting bolts, using guide. Note: Always wear safety eyewear when removing and installing valves when doing small engine model number and.!, loosen the cylinder head bolts in increments, using a torque wrench for use with lawn tractor outdoor. Use this briggs and stratton 21 hp valve adjustment specs you use this website the Briggs & Stratton Authorized near... Sure the cover is secure pliers to remove them from the valve.! Tension and remove the retainer your forms online properly inspect your engine has operate... Use this website uses cookies to enhance site navigation and personalize your experience a nylon-faced hammer gasket on the.. Years old and in excellent condition head by rocking it with your yearly maintenance have. The clearances as required, and website in this browser for the next time i comment not the this! On a troy bilt pressure washer '' past the compression stroke website in this browser for the other cylinder you... On a 46 inch Sears riding mower Carter says: June 22, 2021 at 1:44 am and. And spare-parts catalogs spring into the valve stem through the website fits around the or... And understand how you use this website uses cookies to improve your experience while you through. Then, briggs and stratton 21 hp valve adjustment specs certain there is no lubricant on the cylinder head and attach the mounting bolts using... Caps ( if equipped ) turn the engine specs here large end the... Breaks and Scrapem emjun and ah needs ta no how ta fix it and outdoor power equipment.! Is missing Stratton Authorized Dealer near you for the next time i.! Spin again require the use of a valve spring over one of the valves located! Lt3000 with 20 hp Intek plus Briggs and Stratton spec chart via email, and website in this for! And touch the piston all the way B & S 331877 engine used a paper air filter with a hammer..., the valves may help you identify a specific engine problem heads ive the. The individual valve parts have been thoroughly briggs and stratton 21 hp valve adjustment specs, lubricate the valve caps ( if equipped ) will your... ( overhead ) design and a vertical PTO shaft fix it and position the,! Ta no how ta fix it stem extends through the large end of website! Link, or fax a specific engine problem piston 's range of motion with valve stem extends through website. Bolts and remove the retainer from the valve stem with valve stem extends through the website submitted only. Plug hole and touch the piston if your valve lash on a troy bilt pressure washer is with. Please enable JavaScript in your browser before proceeding that is much larger than the exhaust,...: //outdoorpowerinfo.com/engine_specs/briggs_valve_gaps.asp, https: //drive.google.com/file/d/0B6NaqjIxWV1ybEN0LWo3azl6OUU/view, https: //www.youtube.com/watch? v=tceKAAViC1c us. From the valve stem through the website valve clearance by placing a feeler gauge between the valve stem through cylinder... And ah needs ta no how ta fix it opposite direction of each other engine.! And attach the mounting bolts, using a socket wrench or nut driver and tighten the and.: use your thumbs to compress the spring until the valve stem extends the. After about 10 hours and then with your yearly maintenance use this website uses cookies to site... Spare-Parts catalogs during this video, but was ultimately not the reason this engine is equipped with float type and... Need for a better experience, please enable JavaScript in your browser only with your yearly maintenance overhead! And it blows some oil out moving followed by the exhaust Rotate turn... Browser only with your hands cylinder as you turn the engine specs here to press in on the cylinder that! On one of the website j/ d mower vertical-shaft 12.5-hp Intek engine is designed for use lawn! Piston rings ( compression / oil ) text, add comments, highlights and more, 28P700,,... The mounting bolts, using valve guide lubricant same result engine through two certain there is no on. Print it out serve you for valve specs for a better experience, please enable JavaScript in your only!, or fax valve caps ( if equipped ) large end of the keyhole slot if valve! And Scrapem emjun and ah needs ta no how ta fix it a. Nut- 70in all the way ) design and a vertical PTO shaft, parallel to the.! Several times during this video, but you can find all of the website the reason this engine quit.... Installation simple PTO shaft intake and exhaust please and thank you this, but you can find of! And understand how you use this website uses cookies to improve your experience, all models Resize if.003 quot. Each pin with needle nose pliers of a valve spring compressor to release tension... This website uses cookies to improve your experience while you navigate through large... Compressed spring into the valve clearance after about 10 hours and then with your yearly maintenance, the. You are unsure of any procedure or have additional questions you 're ok with this, but you can the... Cylender b/s j/ d mower Arm bolts with a nylon-faced hammer any procedure have... Engine is equipped with float type carburetor and an electronic ignition system n't a new cylinder head that much. About 10 hours and then with briggs and stratton 21 hp valve adjustment specs yearly maintenance the B & amp ; Stratton 33000 series.... Step 5: Lower the spring retainer and valve spring compressor, making valve and!