89 lt500 rebuild question

[wes1ed]

I just purchased a 89 lt 500 that had a broken piston skirt and it was locked up i replaced the piston and had it bored .020 over i got all the pices of the piston skirt out of the case and flushed it several times. i got it running again and it is smoking very bad i am running 32;1 maxima 927 oil. it is even driping oil from the exhaust port. i know the smell of 927 and this is different has anyone had oil from the gearbox get in the engine i think that is what is happining. anyone have any ideas???? thanks Wes

[FPMXer]

Check the right side crank seal. Welcome to E2S.

[fastman69]

I use to have oil come out the exhaust port on my 87. I was never sure if it was oil from the premix or gearbox. I never fixed anything but leaned up the mix and it went away. I was lucky.

[oldschoolzuk]

When it locked up was it from the broken piston skirt wedged in thr cylinder port or were the pieces down below the crank?If below the crank it is possible it broke the case under the crank where it rotates.It almost impossible to see without splitting the cases apart.This is a common problem when pieces get wedged under the crank.a way to determin this without splitting cases is pull top end off and have crank and piston exposed.drain the oil out of the engine and leave the oil plug out.make sure its completely drained.Now take a quart of oil and pour it into the engine at the crank and see if the oil starts coming out of the drain .If so the cases are cracked or broken if not then take a shop vac and clean the oil out of the crank assembly.My 87 engine did this when I broke a piston skirt I could not see the damage until I split the cases.Hopefully this is not what happened to yours but it is possible..Good luck