Pressure Testing a Block

[Ken/Alabama]

Originally Posted by Bored&Stroked

Hey Ken, when you put the pins in, did you coat them with any sort of sealer - like locktite stud and bearing mount? This tends to help them not leak/weep a bit.

I've found that sometimes the pins will weep just a bit - so I always start the engine and use a water-glass ceramic seal product from Moroso for the initial break in. Sometimes I do it twice just for good measure. This stuff will seal up the IronTite pins if they are weeping.

Hopefully you can save the block!

Yes I did use a sealer on the pins. I used a Lock n stitch kit and it has a ceramic sealer for the pins. I’m a little afraid of 50 lbs . The cracks were in the valve seat area. The intake ran over into the cylinder . The exhaust had a very short crack that ran under the valve seat but stopped there. If it checks good I’ll sleeve that one cylinder.