3.0 typical crack area?

[pastorjoes]

Re: 3.0 typical crack area?

Thank You I thought this much but wanted some reassurance And I am rebuilding this engine

 

[pastorjoes]

Re: 3.0 typical crack area?

Thank You

 

[sti1471]

Re: 3.0 typical crack area?

BS my friend. an external crack will leave the air just out and an internal crack will leave the air into the crankcase , the same way water goes into the oil- in any case it would loose pressure. thats why we maka pressure testing at all.



basicly yes. you use 15 lb of air to "force" tiny cracks to open and simulate with this a warmed up engine and expanding small cracks.

when it holds 15 lb for hours i would without any fear rebuild this block because you can strongly assume its not cracked.

That is a good point. I guess I over looked that part of the formula. In that case, then yes the block looks good. :lol: