

| Subject: | Re: Compression test |
| Date: | Fri, 30 May 1997 16:36:14 -0400 (EDT) |
Hotch, My compression values were almost identical to yours before I did the heads and rings recently. Now they're all around 180. If I remember correctly, you are still within specs per Bently but it made me wonder too with such a variation in values. You can get some idea if it is rings or valves by adding a tsp of oil to the cylinder and repeating the compression test. Think compression will go up with oil if it is the rings but maybe someone can confirm this. Garrick Chang 84 Westy >Over the weekend I had a minute to finally do a compression test. The engine has 130K and the factory rebuilt heads have 70-80K on them. The results are: #1 = 125 lbs #2 = 150 lbs #3 = 125 lbs #4 = 150 lbs I see a pattern here, the front cylinders seem to have aged faster than the rears. Also, when I double checked #3 after checking #4, #3 read even lower, 90 lbs. The engine runs fine, idles a little rough, does not eat water or oil. Should I be concerned, should I start saving now for a valve job?. Any ideas would be appreciated.<
Have something to add on this topic today? Revive this thread in the forum »