This particular engine needed between .003 and .005 on the intake side and .005 to .007 on the exhaust side. xref Necessary cookies are absolutely essential for the website to function properly. In order to reach your engine valves, you will need to reach the valve chamber. Overhead valves are pushed open by pivoting rocker arms, operated by push rods. All you have to do is save it or send it via email. Turn the flywheel clockwise past top dead center until the piston has moved down 1/4". Removing keyhole retainers requires some patience. Then, remove the valve cover, breather valve assembly (if equipped) and any gaskets. 100 Then, make certain there is NO lubricant on the ends of the valve stems or tappets. Follow our step-by-step guide on how to do paperwork without the paper. Place the valve spring into the valve spring compressor and rotate the tool's handle until the spring is fully compressed. Use the screwdriver to gauge the piston's range of motion. .873 Then, if the valves are not badly worn and the parts are not damaged, you can tune up the valves and seats (see ". Mag Journal Crankpin Journal PTO Journal Crankshaft End Play Main Bearing Reject Gage Or Reject Dimension Cylinder Bore StandardNOTES Ozs. Hold the screw and tighten the jam nut to value 45 lb-in. Engineers can observe and adjust tappet clearance only when the valves are in a closed position and the engine is cooled at the compression stroke. Use professional pre-built templates to fill in and sign documents online faster. Printing and scanning is no longer the best way to manage documents. If you click a merchant link and buy a product or service on their website, we may be paid a fee by the merchant. What type of gas should I put in my lawn mower? When doing lawn mower engine repair and maintenance, you may need to find specific parts and specifications for your equipment. You'll be able to see if one is stuck or not. We offer the most comprehensive selection of genuine Briggs and Stratton parts and accessories, including a valve clearance chart, adjustable valves, and valve adjustment kits. This document shows the gap clearance requirements for the intake and exhaust valve's with their rocker arm. Adjust Valves on 19.5 B&S Single Model# 31P6770140B1 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! inspecting all the parts and setting valve intake and exhaust rocker arm clearance. Steve. Remove the valve caps (if equipped). Portable devices like touch screen phones and tablets actually are a ready business substitute for desktop and laptop PCs. (Nm) COVER OR SUMP IN. Check that both valve springs are straight . Step 4: Once the individual valve parts have been thoroughly cleaned, lubricate the valve stems and guides, using valve guide lubricant. PDF Check Chart Common Specs - mymowerparts.com .010 The material provided above is not intended to replace work performed by a Briggs & Stratton authorized dealer. Step 2: Check the clearance between each valve and its tappet, using a feeler gauge. 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. 90 .873 Insert the compressed spring and retainer into the valve chamber. We use cookies to improve security, personalize the user experience, enhance our marketing activities (including cooperating with our 3rd party partners) and for other business use. LBS. This will help you slip the retainer off the valve stem, even when the retainer is hidden from view by the valve spring compressor. Each valve stem moves in a valve guide that is machined directly in the cylinder block or in a replaceable bushing.