Web26 jan. 2016 · Tractor. Ford 7000, 2000, New Holland TS-135A, John Deere 7400. davesl708 said: Timing could cause a valve to be open when in compression. That's what I'm thinking. Have to pull front axle to remove crank pulley and timing cover to check. That will have to wait till tomorrow. Jan 26, 2016 / Causes of low compression #7. Web2 dec. 2016 · Just completed compression test. 1=207psi, 2=200, 3=210, 4=190, 5=197, 6=200, 7=200, 8=170, 9=202, 10=208. put some oil in #8 and retested at 225! Other …
2002 duratec 3.0 in ford escape. I need to do a compression
Web14 dec. 2014 · If the psi changes, it could be a sign of leaking rings. If it doesn't, it could be either a bad head gasket, bad valves, or possible block problem. There shouldn't be more than a 10% delta across cylinders. These numbers are on the border. In the cylinder that showed 150 psi, squirt a little oil, and re-test. Web10 mei 2011 · do you mean 300 CID, instead of 300 cc? most carbureted 300s have a stock compression ratio of 8.8:1. each cylinder is supposed to have as close to the same compression as possible. ford got fancy later on and started calling the 300 the 4.9, as all the foreign makes are measured in liters instead of Cubic Inch Displacement. i'm … richard soest
5.7 compression test- one cylinder at 150 psi, worry? - Maxum …
Web2 jan. 2024 · It depends on if the motor is stock or what compression ratio it is supposed to have. When someone say a motor has 8:1 compression, the 1 is 14.7psi, so it is 8x14.7 or roughly 117psi, which is what my truck motor runs at. That sounds right for a stock motor. 2002 Volkswagen Jetta GLI 24V VR6 6 speed 1998 Ford Taurus LX 3.0 Vulcan OHV S … Web30 aug. 2024 · Compression usually builds quick and even. Generalizations.. Leaking piston rings will build slow on the first stroke and take many strokes to get to the peak. Leaking valves will be low on the first stroke but stay low. You don't have adjacent low compression so probably not that. Web24 okt. 2011 · I decided to do a compression test today while I was installing my injectors. I borrowed a gauge from Shoebear (thank you very much). I live at about 5800ft so the numbers are a little lower than normal. 1-350 3-350 5-340 7-350 2-335 4-340 6-340 8-340 The one glitch I got was on cylinder number 7. richard sodmann csl