Hello Ive got a 1990 120 looper that I rebuilt and it has a little cough at idle. Just a bit of history I originally broke a seal ring and totaled the power head. I found one on Ebay and put in some new seal rings and one new piston and all new piston rings. Took it out for a run and it ran...
Re: Seal ring on crank broken 120 hp looper
Ok I took a few pictures. I pulled the remainder seal rings off and noticed that each one had worn down on the sides. You can see in the photos. Is this normal to wear like this? Do the seal rings remain stationary and the crank spins inside of...
Im looking for any ideas to why a seal ring on my crank came apart which wiped out my block. after tear down I found the only problem was the seal ring on the crank. I rebuilt this engine 8 years ago and will try to attach a link to that thread from 8 years ago to give a little history...