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Thread: Engine pressure
04-05-2006 10:29 PM #1
I had checked the compress pressure of 3 E39 M5 engine, all of them were out of the car, so when check the pressure, the engine is cold, I connect the engine with battery to turn the engine on, every cylinder for 8 turn, all spark plug out when testing every cylinder:
1. engine1: without oil in it, get 115/181/132/138 and 160/139/142/161 psi.
2. engine2: without oil in it, get 134/180/137/204 and
3. engine3: with oil in it, get 173/187/178/159 and 154/152/160/150 psi
I had checked the TIS, it said the min pressure will be 178-204psi, so those 3 engine seem not good enough!
But for those engine, which one will be the best? Or my check procedure is something wrong?
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