Compression lower Cylinders 4,5,6
Posted: Fri Aug 08, 2014 12:32 am
Hi guys,
Just compression tested the 2.5 V6 12 valve.
Right Bank of cylinders:
1 185
2 182
3 187
Left Bank of cylinders:
4 165
5 160
6 162
Engine warm, 10 cranks, all plugs out.
I think it's strange that one entire bank is lower than the other bank.. Causes?
1. Left Head thickness is greater than Right Head thickess - I suppose I could measure this
2. Cylinders 4,5,6 have worn rings - Possible oil gallery problem on the Left side?
It's been about 14 years since I last built and diagnosed engines, so any thoughts or ideas would be appreciated.
Just compression tested the 2.5 V6 12 valve.
Right Bank of cylinders:
1 185
2 182
3 187
Left Bank of cylinders:
4 165
5 160
6 162
Engine warm, 10 cranks, all plugs out.
I think it's strange that one entire bank is lower than the other bank.. Causes?
1. Left Head thickness is greater than Right Head thickess - I suppose I could measure this
2. Cylinders 4,5,6 have worn rings - Possible oil gallery problem on the Left side?
It's been about 14 years since I last built and diagnosed engines, so any thoughts or ideas would be appreciated.