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leak down tests for the vr6 engine to test bottom end?


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In a nutshell you blow air under compression into the spark plug hole and see where it leaks from.

I.e out the valves, rings, into the coolant etc...

Loads of videos on YouTube

 

thanks pete, obviously i have to set the cylinders to TDC on the pulley mark, when cylinder 1 is at TDC in the far left when you look at the engine from the front what other piston numbers are at tdc on a vr6? im guessing like this picture? 1+6, 2+4 and 3+5

 

vr6_zps95cb82ee.jpg

 

vr6_zps3113a124.jpg

Edited by paceo
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