Brian_Heil Posted February 18 Author Share Posted February 18 A follow-up to this post. I did a compression test this past Fall on the engine cold. All six cylinders, all spark plugs removed, about 2 seconds of cranking on each cylinder. All six cylinders were 70 to 71 PSI. Not bad for stock cast iron piston and rings with more miles on them then I will ever know. At least I can feel good that the valve work completed has held up well for 6 years and -8000+ miles. I had a couple cylinders near zero and none higher than 40 psi before the work. 7 Link to comment Share on other sites More sharing options...
Terry Wiegand Posted February 19 Share Posted February 19 Brian, I would say that that is a pretty good testament to the original engineering that Mr. Marr put into the Buick automobile and that the person and/or persons who did the valve train rebuilding might have known a little bit about what they were doing. Good on you!! Terry Wiegand South Hutchinson, Kansas AACA Life Member #947918 1 Link to comment Share on other sites More sharing options...
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