Hello all. First post, but I've been turning to you for reading material for a while now.
So tonight I buttoned up my motor and tried to start it and the starter won't turn it. It's even hard turning with a breaker bar on the flywheel nut.
The motor is a briggs 18 hp opposed twin 422707
Here's the story. ..
I decided to tear the motor apart after mowing the lawn for fifteen minutes then it dies. I noticed oil leaking from the lower cylinder head bolts, and lead me to think blown head gasket mixed with rings letting to much oil past the piston.
So I took the motor out of the mower. Pulled the heads off. Took the crankcase cover off. Pulled the pistons, declared the cylinder walls. New rings, filed valve ends to proper clearance, put all back together and noticed it's got a lot more rotating resistance even with the heads still off.
It seems like the extra resistance happened when I put the rod caps on, while rotating the crank slightly to torque the cap bolts it was difficult (from new rings on cross hatch cylinder).
Then when the caps were torqued to 180 in. lb. it got a little more resistance. I put black all purpose grease on the rod crank journals as assembly lube.
I'm sure I left something out for diagnosticing.
Does this sound fairly normal for the added rotating resistance, or did I screw the pooch somehow?