Engine removal is not that bad, just time and patience.
Of course, fuel line need removed, I also removed gas tank for extra working room.
unhook electrical wiring, pull it back, remove neg battery cable from motor or frame, left front if I recall.
throttle and choke cable.
There is a spring loaded tensioning bracket on back of motor/frame. You will need to loosen that nut on the threaded rod. This loosens the belts for removal.
If yours has the upper driveshaft for rear PTO, you will ned to remove the pin on driveshaft to be able to slide of motor shaft.
There is also a round clip holding the lower driveshaft tensioning arm to a pin on the lower left side of the motor cradle. Remove that clip and it will slide off. Check the bronze bushings inside the hole, mine were almost gone they were so worn.
Motor is bolted into a cradle which is then bolted to frame via some rubber cushioned bolts. Since you are just having front crank addressed, I would just unbolt it from frame and leave it bolted to motor.
Good advice for a strong friend or some time of engine hoist or overhead lift, motor is pretty heavy.
The pulleys are supposed to come off motor as assembly, as Olecow stated, the rear 5 bolt cover is crank/bearing cover, it can only be removed once pulleys slide off. The PO or whoever did that work needs a welder stuck up their.... well, you know! I'm dealing with PO issues on mine as he bypassed all safetys and switches, rigged broekn starter, and removed rear PTO stuff instead of doing it correctly.
Also as olecow stated, if you are just going to have machinist preoper repair what you have and keep the manual engagement, make sure he measures everything before removal so he can make a proper spacer to keep your pulleys aligned.
While apart, check condition of belts and ujoints, pivot bearing. I found mine to all be needing replaced when I pulled motor.
Good time to check starter bolts too, reason I had to pull my motor cause one broke off ( yes, have to pull motor to access starter) , other was loose and falling out.
Here's what you'll have when you're done. I do not have rear PTO driveshaft.
Edited by TAHOE, August 01, 2013 - 08:25 AM.