951 case repair

[gitrdone]

I had a piston come apart and this is all the damage that was caused to the cases. I was wondering if I can still use them, as long as I smooth the area out, without a problem or will I need a new upper case, and if I need a new case is there any way this can be repaired or is the cast material not able to be welded?

[diver2694]

You can TIG weld the cases with no worries, the top and bottom cases are matched at factory i.e. machined together, you could have big problems just bolting a different top/bottom half together. Depending how thin the wall is where the damage is you might be able to just dress it up.

[gitrdone]

Ok I just need to know if I can still use the cases and dress up that one spot or if I need to get now ones.

[Dirty Sanchez]

if the cases are cracked just file the rough edge's, then use a healthy amount of 1211 bond and slap her together. dont forget the 30ml of 30 wt oil for the counter balancer shaft. You can't just replace half a case. mated / line bored. If crack yes tig the crack, file the weld down, test fit the crank & bolt down with out 1211 bond and rotate the crank, if it spins freely then re-assembly with 1211 bond. otherwise re-file the weld until it spins freely.

[gitrdone]

Thanks, that's the only thing that is damaged is the intake runner (what I call it). I wouldn't think that it would make a defference since there is so little missing and it has no moving parts and also there is really no stress on that area at all.

[tweeker]

File it smooth that ain't gonna make a hill of beans

[dsolie]

Typical on ALL 951's that have a something come off in the motor.. I think all of our motors have that same damage.

[race24x]

WHats the deal with 30mL of oil and where does it go I didnt know there was regular oil in there somewhere. Can you drain and refill it? Is there s dipstick or something to check it with?

[96XPSS]

WHats the deal with 30mL of oil and where does it go I didnt know there was regular oil in there somewhere. Can you drain and refill it? Is there s dipstick or something to check it with?

It goes in the rear c/b shaft cavity. No dipstick, as there is nothing to check as there is nowhere for it to go.

[Dazz67]

unless you loose your counter balance shaft oil through seal
then this happens

motor, was actually still goin good,,,,,,,,,,not for much longer though

any tips or tricks to welding and machine maching that mess