Engine block leak down test

[Dave2001S]

Awesome, thank you. Is the test performed with the heads on or off? I'd like to perform this test, if possible, only on the block to isolate leaks to that portion of the engine

[BYprodriver]

The heads must be installed to contain the pressure & measure the leakage. If you are going to have the heads removed regardless the outcome of a leakage test have the cylinders measured for wear while the heads are off.

[JFP in PA]

Originally Posted by Dave2001S

Awesome, thank you. Is the test performed with the heads on or off? I'd like to perform this test, if possible, only on the block to isolate leaks to that portion of the engine

With the heads on, this test checks the head, block, gaskets, and even the rings.