I recently rebuilt my 300 i6 in my 85 f150 and I put my water pump and it leaked around the cast housing where it bolts to the block. So I took it back out and just bought a new one just to have it and now it leaks in the same spots. If it doesn't seal this time will it matter if i just Jb weld the damn cracks so it doesn't leak anymore. I know this sounds like a Jerry rigging way of doing something but im getting tired of dickin with it.

 

Hi, JB Weld is an excellent product..If used as per instructions, I am thinking it will seal the leak..I use it for all manner of repairs and have had excellent results every time..Go for it..be sure to smooth out the gasket area where the repair is done with a fine tooth file or a sanding block to let the gasket seat properly..I bet it will work fine.

 

I got it to seal now. I just used the **** out of the wonderful form-a-gasket stuff. Then the thermostat housing leaked. Fixed it. Now the damn heater core leaks. Damn truck