Hello Is it normal to do a compression test and be 5 lbs apart I got 135 130 135 130 Thanks George
G George68 Cadet Joined Oct 2, 2012 Messages 27 Mar 23, 2013 #1 Hello Is it normal to do a compression test and be 5 lbs apart I got 135 130 135 130 Thanks George
E emdsapmgr Supreme Mariner Joined Dec 9, 2005 Messages 11,551 Mar 23, 2013 #2 Re: 120 Johnson Compression Test That's great compression. Normal tolerance is 10% between all 4 cyls. You don't show which values go with which head...Sometimes there is a small variance between heads-very normal.
Re: 120 Johnson Compression Test That's great compression. Normal tolerance is 10% between all 4 cyls. You don't show which values go with which head...Sometimes there is a small variance between heads-very normal.
G George68 Cadet Joined Oct 2, 2012 Messages 27 Mar 23, 2013 #3 Re: 120 Johnson Compression Test Thanks for your help !
