compression test sillyness---
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MiG-21 superfan
Joined: Mar 2001
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compression test sillyness---
i did a compression test, hot engine, PowerFC disconnected and WOT, 7 cranks, and my numbers were 240-245-245-245...so, i do the 240 one over and over, 7 cranks each time, and it is like 240-235
...so, i then take literally ONE THREADS worth of oil, put it on the threads of the comp. tester, screw it in, and its now 245 everytime; without fail, itll hit 245+ each time but before the literally one/2 threads worth of oil on the threaded end of the comp tester, it was 235-240
Harry aka Ndcissive said it is possible there was a slight leak around the threads of that cylinder, however, I did screw it in rather snug...
Ever seen this?
...so, i then take literally ONE THREADS worth of oil, put it on the threads of the comp. tester, screw it in, and its now 245 everytime; without fail, itll hit 245+ each time but before the literally one/2 threads worth of oil on the threaded end of the comp tester, it was 235-240
Harry aka Ndcissive said it is possible there was a slight leak around the threads of that cylinder, however, I did screw it in rather snug...
Ever seen this?
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