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Sadly, I don’t have compressed air in my garage, so performing a leakdown test is not possible at the moment. I’ve noticed one more thing. When performing a power balance test (by removing spark plug wires one by one at idle) when cylinder no.2 spark plug wire is removed – engine dies almost instantly. When spark plug wires are removed from cylinders 1, 3 and 4 – engine just starts to shake more, but continues to run. Tried a few times, result is always the same. Maybe this says something?
Sadly, I don’t have compressed air in my garage, so performing a leakdown test is not possible at the moment. I’ve noticed one more thing. When performing a power balance test (by removing spark plug wires one by one at idle) when cylinder no.2 spark plug wire is removed – engine dies almost instantly. When spark plug wires are removed from cylinders 1, 3 and 4 – engine just starts to shake more, but continues to run. Tried a few times, result is always the same. Maybe this says something?
Did two videos on cylinder 2 compression test. Take a look, as I understand sometimes on the first crank it does not build up 100PSI, as it normally does. Other 3 cylinders always make ~100PSI on the first crank
Normally it goes like this:
http://www.youtube.com/watch?v=75VB0CeI_P4
But sometimes it goes like that:
http://www.youtube.com/watch?v=wVlO33uHKbs
I did not notice this happen on other 3 cylinders. What could be the cause?
Did two videos on cylinder 2 compression test. Take a look, as I understand sometimes on the first crank it does not build up 100PSI, as it normally does. Other 3 cylinders always make ~100PSI on the first crank
Normally it goes like this:
http://www.youtube.com/watch?v=75VB0CeI_P4
But sometimes it goes like that:
http://www.youtube.com/watch?v=wVlO33uHKbs
I did not notice this happen on other 3 cylinders. What could be the cause?
Bought myself a new compression tester, and did compression test once again. Results:
DRY:
Cyl. no.1 first try – 200PSI, second try – 200PSI
Cyl. no.2 first try – 190PSI, second try – 195PSI
Cyl. no.3 first try – 190PSI, second try – 195PSI
Cyl. no.4 first try – 200PSI, second try – 200PSIWET:
Cyl. no.1 – 220PSI
Cyl. no.2 – 210PSI
Cyl. no.3 – 210PSI
Cyl. no.4 – 220PSIAny comments?
Bought myself a new compression tester, and did compression test once again. Results:
DRY:
Cyl. no.1 first try – 200PSI, second try – 200PSI
Cyl. no.2 first try – 190PSI, second try – 195PSI
Cyl. no.3 first try – 190PSI, second try – 195PSI
Cyl. no.4 first try – 200PSI, second try – 200PSIWET:
Cyl. no.1 – 220PSI
Cyl. no.2 – 210PSI
Cyl. no.3 – 210PSI
Cyl. no.4 – 220PSIAny comments?
Yeah, I’m pretty sure it’s something wrong with cylinder No.2. The problem now is: if it’s a problem with head, valves or head gasket, then I’m sure it’s worth fixing and I could do that (with machine shop help). If problem is in rings, piston, or something like that, which requires full engine rebuild – then it’s time to search for a new used engine. But the problem is, I don’t have leak down test tools, and nobody performs that test in the area where I live. I can do compression test only. Is there any other way to know if piston, rings and cylinder are in normal condition? Maybe I should pour some kerosene in each cylinder and watch how fast kerosene’s level is getting down?
Yeah, I’m pretty sure it’s something wrong with cylinder No.2. The problem now is: if it’s a problem with head, valves or head gasket, then I’m sure it’s worth fixing and I could do that (with machine shop help). If problem is in rings, piston, or something like that, which requires full engine rebuild – then it’s time to search for a new used engine. But the problem is, I don’t have leak down test tools, and nobody performs that test in the area where I live. I can do compression test only. Is there any other way to know if piston, rings and cylinder are in normal condition? Maybe I should pour some kerosene in each cylinder and watch how fast kerosene’s level is getting down?