suby engine oil pan shortened, cant stop the leaks Options

[scotty914]

okay short version of it:

i cut 2 inches out of the oil pan for more ground clearance, and added 2 boxes to make up for the capacity, sticking out of the front and rear of the oil pan.

i welded it all up, used a flood light to look for holes found 3 pin holes that way, welded the pin holes up. then did a water test and it leaked, well more like seeped, i could see the water spreading on the out side, not dripping jet wetting it. so i ground down the first area and brazed it. well i did this about to about 10 places, and some of them more than once ( brazed a larger area )

and still have the seepage problem, could i just por 15 the oil pan to seal the holes or should i keep brazing and looking. and if not por 15 is there anything else i could use.

i so far have used a 3 foot flux coated rod brazing this thing up, so now what

[MecGen]

Hey
I've been there, not with a Suby but...
You need to bolt it to the motor upside down, this helps with the distortion, I had to make temperary bracing inside to try to help expansion and contraction from the welding heat. I suspect its when it cools, that you develope stress cracks in the weld causing the seeping.
Grind down all you previous welds to a minnimum, and braze the whole deal again. Here we have rad shops that can dipp a pan with a high temp resin to seal it al up. You still need to make sure the pan is 100% before the dip, its not realy reliable on it own, resin cracks with time, looks nice.
Hope this helps, I'm waiting to see the final product
WBR
Joe


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