Compression Test
03-25-2003, 03:57 AM
#12
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the block heater would warm the block to about 130-150 degrees which is close enough to operating temp that the test would be almost completely accurate. most engines operate in a heat range between 180-212 degrees.
03-25-2003, 05:50 AM
#13
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it would be hard to do because the rings wouldnt seat ad there is also no way to crank the engine over because the first crank has to been half of your over all compression then you crank it 4 times and the last reading is your compressionand you cant do that with an air gun cause you wont bespinning the crank at what it should spin at and you have to only remove one plug at a time for pressure reasons at thats why you cant do it out of the car. Now if you want to you can do a cylinder leakage test where you put the piston at tdc an put a certin amount of pressure on it and see how much leaks down, tha is acually a step above a compression test.
03-25-2003, 09:11 AM
#14
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Originally posted by Dx Racer
it would be hard to do because the rings wouldnt seat ad there is also no way to crank the engine over because the first crank has to been half of your over all compression then you crank it 4 times and the last reading is your compressionand you cant do that with an air gun cause you wont bespinning the crank at what it should spin at and you have to only remove one plug at a time for pressure reasons at thats why you cant do it out of the car. Now if you want to you can do a cylinder leakage test where you put the piston at tdc an put a certin amount of pressure on it and see how much leaks down, tha is acually a step above a compression test.
it would be hard to do because the rings wouldnt seat ad there is also no way to crank the engine over because the first crank has to been half of your over all compression then you crank it 4 times and the last reading is your compressionand you cant do that with an air gun cause you wont bespinning the crank at what it should spin at and you have to only remove one plug at a time for pressure reasons at thats why you cant do it out of the car. Now if you want to you can do a cylinder leakage test where you put the piston at tdc an put a certin amount of pressure on it and see how much leaks down, tha is acually a step above a compression test.
03-26-2003, 08:49 AM
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OK for starter you have multiple ways of testing for compression....
i dont know why this is gonna turn into an arguement... damn kids.... -_-
For most of you that might know there is more than one way.... you can do it cold or warm...
Eng ill come over and we'll mess with it -_-
i dont know why this is gonna turn into an arguement... damn kids.... -_-
For most of you that might know there is more than one way.... you can do it cold or warm...
Eng ill come over and we'll mess with it -_-
03-26-2003, 03:17 PM
#17
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Originally posted by Hybrid AWD
Eng ill come over and we'll mess with it -_-
Eng ill come over and we'll mess with it -_-
Just send me a PM or IM beforehand to make sure I'm going to be around. Anyone else that knows how to do it is welcome to come over as well.
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03-27-2003, 03:34 PM
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Originally posted by StreetEvo
Only let the cylinder compress 4 times to get a correct, or almost correct in your case, reading.
Only let the cylinder compress 4 times to get a correct, or almost correct in your case, reading.
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