Cold compression test numbers. Test was done with the engine cold at about 40-45 F.
Cold compression test numbers These are large bore engines and with just 80 psi, whether hot or cold, there is going to be some leakage. Mar 13, 2015 · The compression test is a method used by a mechanic to determine the general health of the cylinders. . The cold test will give you the best idea of how well the rings are sealing by themselves, in other words how well their doing at their worst (dead cold). Mar 21, 2023 · Some people on here have said that hot compression will allow there to be lower compression numbers because of thermal expansion, and when it’s cold, everything is super tight allowing there to be higher numbers. Apr 23, 2008 · So please answer to what you have SEEN cold compression tests show vs warm ones on the SAME ENGINE. Anything below that is unhealthy and a cause for concern. Let me know what you think and if these numbers are good enough to drive on. Dec 14, 2002 · Compression tests should therefore show what the engine is actually working with rather that a condition (cold) that is only found at startup. Sep 15, 2009 · you should do a comp test on a cold motor (if you wnat to do another one) after a few more days of driving and have a leakdown test done as well. Compression for a f20/f22 should be in the 210-240 range depending upon wear on the motor. only way to get higher numbers is have the engine rebuilt and start over. Oct 17, 2007 · These are the compression test numbers from my 98 M3. Test was done with the engine cold at about 40-45 F. This isn't a thread to bicker as I've seen some of the other compression threads do. With a high compression Honda motor, your compression numbers should all be within ~5% of each other (10% is to much IMO). csubvnjlxmkvvnegikgqlzzlhljgavmobabyiqjbrpsxbbawgtzc