Post by
cardinal »
https://forums.nicoclub.com/cardinal-u4438.html
Wed Mar 31, 2004 11:47 am
Run testing is the best way. I have been to both Japan and Malaysia to purchase engines. I KNOW the tricks to get good compression tests and to make them look nice. Bottom line is most yards in Japan do not do compression tests. I found this out when I asked to perfrom my tests with my compression tester - this particular guy would not let me do it. Unless you are buying a clip which should be able to be started and run, you know nothing about the bottom end or bearings etc. Doing a compression test on a cold engine is not accurate (read how to do the test in the FSM) not to mention a teaspoon of oil will jump the numbers way up. If you run the motor first, it will burn this off and give you true reading. Leakdown tests can be "doctored" up as well.
Be carefull is the bottom line. With the demand for SRs going way up (like the price) and the number of quality motors going down, there is a TON of junk being passed off. If the price sounds too good to be true, it most likely is.