ZR-1 Net Registry Forums - View Single Post

sdycke · 11-29-2012

IMHO after doing the combustion gas in coolant test a few hundred times in a shop enviroment, it is not 100% postive. Maybe 85? And is very sensitive to clean (!) and correct test methods. I remember many times getting heads back (esp Chrysler!) from the machine shop that found cracks, albiet very small ones, that the tester did not pick up but were still the cause of overheating.

11-29-2012	#12
sdycke Join Date: Jul 2011 Location: grosse isle, manitoba, canada Posts: 52	Re: Bad head gasket? IMHO after doing the combustion gas in coolant test a few hundred times in a shop enviroment, it is not 100% postive. Maybe 85? And is very sensitive to clean (!) and correct test methods. I remember many times getting heads back (esp Chrysler!) from the machine shop that found cracks, albiet very small ones, that the tester did not pick up but were still the cause of overheating.