Things Needed
Tip
Work glove can help oneself protect your hand from all the grease and filth associated with locomotive engine work , though can also get in the way of your manual sleight . Let your point of comfort with engine grime determine whether you wear glove .
Warning
Never work on an engine immediately after turning it off – engines get very blistering and can give you knockout burns . Allow the engine to cool before replacing rings .
A pistonserves an inherent use in a small locomotive such as that find on a lawnmower by helping transfer burning world power to the turn parts of the auto . Among the parts found on a Walter Piston are ringing , which foreclose compression pressure from leak out of the engine . The process of replacing piston rings on a Briggs and Stratton lawn lawn mower differs depending upon the type of engine in question , though follows a basic , comparatively simple pattern .
Preparation
Step 1
Read through your Briggs and Stratton engine manual of arms and parts list to familiarize yourself with the make up of the engine . If you do n’t posses your manual and parts list , download them from the Briggs and Stratton web site .
Step 2
Remove the sparkle plug wire to prevent the engine from accidentally come out while you work on it . apply your theatrical role list to locate the wire , and remove it manually by pulling the oddment of the conducting wire from the tip of the spark nag .
Step 3
Drain gasolene from your lawn mower railway locomotive . Use your siphoning thermionic tube to remove gas from the locomotive engine and stash away it in your gas container .
Step 4
deform the lawn mower on its side . Remove the lawn mower sword and any other brackets or bolts connecting the engine to the body of the mower using your drill or screwdriver . This footstep is only require when working on a push mower . With riding mowers , enter the cowling of the machine to get at the locomotive engine .
Step 5
Move the locomotive engine to a employment space such as a table , bench or drop textile in your driveway or service department .
Step 6
open up your young mob and place the package near your engine for easy access .
Replacing the Rings
place the piston within your Briggs and Stratton engine using the parts list . The localisation of the Walter Piston depends upon your mower type and locomotive size of it .
Remove the piston from your railway locomotive by unscrewing the bolt on either side of the plunger theme that hold it in stead . Pull the piston out through bedchamber the piston head sits in .
Remove the piston pin , located on the side of the piston , using a screwdriver or drill . The pin locks all Walter Piston assembly voice into lacing — removing it allows you to disassemble the piston .
Remove the top of the Walter Piston with your hands . If it stick , use your drill or screwdriver to lightly pry it loose .
Take the rings off the plunger using a ring expander . This shaft contain two hold and a big round or U - shaped top . The top fits around or , in some cases , beneath piston pack and , when twitch at the handgrip , get to the rings up for easy remotion around the top of the piston .
Put the fresh anchor ring onto the piston . Place these ring on in the same orderliness as the previous bent of ring – each ring in your new set should cope with a closed chain in your onetime hardening . Use locomotive engine lubricant if necessary to help the rings slide into billet . A received Briggs and Stratton piston doughnut band contain three halo , which must go on in a particular order .
Step 7
Replace the piston top and pin , using your drill or screwdriver as necessary .
Step 8
Place the piston back in your engine and replace any region you withdraw to take the plunger out . Use your screwdriver , practice or wrench to fix all bolts , screws and pins in situation .
Step 9
Put the railway locomotive back on your mower by reattaching the blade and all other bracket and fasteners you removed in Section 1 , Step 4 .
