My friend stripped his out oil drain in his '90 IROC with a 5.7 TPI. It isn't that bad but it still leaks. He was talking about drilling out the old threads and re-tapping the hole and using a bigger drain plug but your mains and con-rod bearings do well with metal shavings in them. He asked me whether there is anyway to fix this without raising the motor and removing the oil pan?

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'87 Red Formula Firebird
-mostly stock LG4 w/cowl induction setup borrowed from '83 TA and T5 tranny

'85 Corvette
-stock L98/4+3 manual tranny
-z51 package

 

Are you sure the pan is stripped, usually the plug will strip first, the pan threads are tougher.

If it is the pan, you can get an oversize drain plug.

Just threads itself in, not my preferance, but if you are in a pinch....

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
and 2 POS commuters...

R.I.P. #3
"He can see air"

 

The best I've seen(besides pan replacement) is an oversize plug that has a small plug built into it. That way you won't have to remove the oversize plug again--which usually strips the pan even more.

Just about forgot the 'farmer' method I've seen work. Weld a nut the pan right over the hole. Then install a bolt and gasket to use as the new oil plug.
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350 with stealth intake, holley carb, 470 lift cam. 700r4 with .5 boost valve, vette servo, tci lock-up kit, B&M megashifter. Richmond 3.73 gears, powertrax locker, timkin bearings, synthetic lube. Custom 3 inch single into 2 2.5 pipes. 1 1/2 drop springs, 1 5/16 solid front sway bar, 1 inch rear bar, custom subframe connectors, custom LCA relocation brackets. Kobel ground FX, currant red metallic paint. Lots of other stuff...
82camaro


[This message has been edited by 82camaro (edited December 06, 2001).]