easyloader
Seaman
- Joined
- Apr 25, 2014
- Messages
- 68
I performed a compression and leakdown test on my 4.3 mecruiser engine. The engine blows smoke on start up and when in gear idling. It only used 1/2 quart of oil in 60hrs.. Below are the results. I'm going to change the gauge on the compression tester. It seems that the motor is getting tired even though it only has 400 hrs on it.
What do you think????????????????
What do you think????????????????
Cylinder | Leak Down percentage | Compression PSI |
1 | 7.5% | 120 |
6 | 13.8% | 125 |
5 | 12.5% | 120 |
4 | 17.5% | 130 |
3 | 11.3% | 125 |
2 | 10.0% | 120 |