remove the mowing deck this should be very simple just a few pins. then in th ebottom of the stack pulley shaft is a bolt you will need a deep well 5/8" socket to reach up inside the shaft remove the bolt and the pulley should slide down and off.
I need to know how to remove a bolt from a pulley assembly on a Briggs and Stratton 8 hp vertical lawn mower engine. It seems to be rusty. I tied DW40 and vise grips and shaft slips. Any suggestions?
Belt is stretched or the tension pulley
Use a puller so you do not bend the pulley.
Not quite sure of the question, but I will give you a site I did (no ads, no nothing) and see if it helps:
Remove the belt(s) and manipulate the pulley by hand; its action should be butter-smooth.
To swap an engine on a Murry riding mower, it is important to make sure that the new engine is the right match for the mower, by checking the model number. You also need to make sure that the bolt holes line up, so that it will fit safely. Remove the old engine, and then replace the new engine, tightening all the screws and bolts in the reverse order that you followed to remove the old engine.
Follow the positive battery cable to the engine, it is what the red cable attaches to.
Most lawnmowers loosen to the left. At least that's how I do it.
If it is a push lawnmower, probably (Although I have seen one with an electric starter). If it is a riding mower, probably not. On a push mower, the hub where the blade is bolted onto is attached to the engine driveshaft via a keyway and a fastener (nut). Therefore, the blade is not driven by a pulley. On the contrary, on a riding mower, the blades are usually driven by a belt that transfers motion from the engine shaft pulley to another pulley that spins the blade(s).
remove the varable speed pulley-replace both belts re-install varable speed pulley--your done.
A Murray riding lawnmower owners manual can be obtained from most Murray riding lawnmower dealerships. You can find the owners manual at most local libraries.
It is important to adjust the carb on your 1996 Murray 12 HP riding lawn mower from time to time. You need to start with a warm engine, and adjust the screws to make them tight.