Planned on sending the tranny off for some mods and found this.

[98_shee]

I was tearing the motor down to send the tranny to camatv and found this.

 

 

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[noonansar]

Air leak? Crank seal?

[J-Madd]

What does the top look like? Which side?

[98_shee]

What does the top look like? Which side?

Top looks fine, left side.

 

 

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[noonansar]

I would guess crank seal

[Surfrjag]

If the cylinder isnt gouged you can take some muratic acid and a qtip to dissolve the aluminum off the cylinder wall. Then hone and measure to see if its within spec to get the same size piston. Sometimes you get lucky.

[noonansar]

^^^X2. I have gotten lucky on a couple sleds and been able to do this. Like Surfjag said, just check your piston to cylinder clearance.

[Starwriter]

Just don't breathe the fumes from the muratic acid. Nasty, nasty stuff. Eats aluminum right up but doesn't affect cast iron.

[Young Guns Racing]

If you heat it with a propane torche before applying the acid I have found this to help getting off the tough stuff. The acid trick works good in some cases! X2 on watching the fumes too, it is some really bad stuff u dont want it in ur lungs

[camatv]

i sent ya a reply..   pull the flywheel off and see if there is rubber bits in that seal area.  or if there is a lot of oil residue.