Pressure Test Block - Engine have to be warm?

[woody619]

Does the engine have to be warmed up to pressure test block for accurate results? Thanks

 

[6meter]

Re: Pressure Test Block - Engine have to be warm?

Why would a warm block give a different result? I'm guessing a cooling system pressure test here.

 

[6meter]

Re: Pressure Test Block - Engine have to be warm?

Or when it heats up and expands and it tightens up the crack?

 

[woody619]

Re: Pressure Test Block - Engine have to be warm?

The mechanic i'm gonna bring it to says it needs to be done warmed up.

My trim doesn't go down, so i'm trying to decide if I need to get that fixed before I get it pressure tested. As I was told I shouldn't run the engine when the trim is up.

Thanks guys!