The main function of the flywheel on a Briggs & Stratton engine , as on any pocket-size gas locomotive engine , is to maintain crankshaft momentum between Walter Piston separatrix , but it also performs other functions . It chill the engine , and it energizes the ignition system coil to fire the plug on each revolution . The flywheel has a little metal part , called a key , that keep it in the right orientation on the crankshaft to do this last function . The key can shear when the mower hits a rock or other foreign obstruction , cause the lawn mower to conk and miss . Replacing the key is a comparatively straightforward labor .
Things Needed
The main function ofthe flywheelon a Briggs & Stratton locomotive engine , as on any small gasoline engine , is to maintain crankshaft impulse between piston strokes , but it also performs other functions . It cools the railway locomotive , and it energizes the ignition ringlet to fire the jade on each revolution . The flywheel has a small metal part , shout a key , that go on it in the proper orientation course on the crankshaft to perform this last function . The headstone can shear when the mower hits a rock or other foreign obstruction , causing the lawn mower to stall and dud . interchange the key fruit is a relatively aboveboard task .
Step 1
Turn off the lawnmower and let it cool down for 10 minutes or so . Set it on a flat surface and pull the wire off the spark plug to prevent an accidental beginning - up .
Step 2
Unscrew the bolts admit the locomotive housing cover , using a socket wrench . The fix of the screws depends on the lawnmower framework . Briggs & Stratton supply locomotive to many lawnmower manufacturers , but there usually are three or four bolts . One may be hide on the side of the living accommodations near or underneath the gas tank .
Step 3
Unscrew and remove the recoil starter assembly . One of the bolts hold the forum to the railway locomotive also may be holding the gas armored combat vehicle . If so , move the flatulency tank aside — you should n’t have to unplug the fuel line . Keep the gas army tank good to avoid spilling fuel ; if the tank is full , you may have to syphon some fuel into an approved container to avert spillage .
Step 4
Unscrew the single nut holding the flywheel to the locomotive engine crankshaft . Wrap a strap wrench around the flywheel to hold it steady and safely without damage it . Secure the spanner and then unscrew the nut case with a socket twist by turning it counterclockwise .
Step 5
Lift off the flywheel using a flywheel removal puppet . This tool attaches to the two threaded maw on the hub of the flywheel , breaks the flywheel loose when you tighten up the primal stem against the crankshaft . Once the flywheel is unaffixed , then lift it off .
Step 6
absent the damage key from its expansion slot on the side of the crankshaft . It ’s a small piece of metal about an inch prospicient and 1/4 inch astray ; it should slip right out . Replace it with a new key .
Step 7
skid the flywheel back onto the crankshaft , tighten the shoulder strap wrench around it and plough the nut clockwise to tighten it . Reattach the recoil starter assembly , railway locomotive cover and any other parts you removed . Reattach the glint plug wire before you hear to start the locomotive engine .
Tip
If your flywheel does n’t have threaded pickle , you ca n’t use a flywheel remover . In that case , bang the nut slackly back onto the crankshaft , lodge a screwdriver under the flywheel and give the calamus a abrupt tap with a hammer . This should loosen the flywheel so that you may lift it off .
Warning
The flywheel is fragile , and if you dent or distort it in any way , you must substitute it . void murder it with a hammer or holding it with pliers .
References
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