The Ford Barn - View Single Post - Compression Problem Revisited - Update

Bob Johnson · 03-10-2012, 08:42 PM

The method I use to keep the engine from rotating during a leak down test is to use the hand crank. I put in the hand crank and the use a 4X4 wedged between the end of the hand crank and the ground. This prevents the engine from turning. Make sure that the piston for the cylinder you are testing is just BEFORE top dead center. The hand crank should be set in the 9 o'clock position (passengers side).

Bob

03-10-2012, 08:42 PM	#4
Bob Johnson Senior Member Join Date: May 2010 Location: California Posts: 1,021	Re: Compression Problem Revisited The method I use to keep the engine from rotating during a leak down test is to use the hand crank. I put in the hand crank and the use a 4X4 wedged between the end of the hand crank and the ground. This prevents the engine from turning. Make sure that the piston for the cylinder you are testing is just BEFORE top dead center. The hand crank should be set in the 9 o'clock position (passengers side). Bob