4mil crank problem

[sheerider1026]

ok guys, i have a buddy that has a 4mil crank he wants to sell. it is stock rod length, he says that it keeps going through crank seals.. the pto side never goes out, its only the stator side seal.. what would cause this?? could the crank be out of phase?? he just said the hell with it and bought another crank,, he said he wants 125 for it.. any ideas??

[ohiobanshee]

Bad bearing,crank not true or the seal surface nicked up.

[sheerider1026]

Bad bearing,crank not true or the seal surface nicked up.

hmm. would it be worth it if it is just out of true?? i could send it off to get trued and welded?? i haven't seen it yet, i guess i could do a good visual and check the bearings.. he is a very good mechanic and said he couldn't figure out what was causing it, so he gave up after the 3rd seal and bought a new crank.. i am thinking it is out of true..

[pabansheematt]

hmm. would it be worth it if it is just out of true?? i could send it off to get trued and welded?? i haven't seen it yet, i guess i could do a good visual and check the bearings.. he is a very good mechanic and said he couldn't figure out what was causing it, so he gave up after the 3rd seal and bought a new crank.. i am thinking it is out of true..

Is it possible he put the seal In backward, both sides look nearly the same, but are different.

[sheerider1026]

not sure.. wouldn't it still be ok if it is in backwards?? if thats what he is doing then the new crank install would have the same problem.. i don't think he would have put it in backwards though.. he has built banshee motors a few times..