Engine Compression
Tuned
Joined: Apr 2011
Posts: 464
Likes: 5
From: Redmond, WA USA
And youall probably already know this, but for some of the newcomers, DON'T ever perform a "wet" compression test on a diesel engine. This is where you squirt a small amount of motor oil into the cylinder to better seal the rings - the difference between the dry reading (taken first of course) and the wet reading can help to determine how worn out the rings are.
On a diesel, if you add oil to the cylinder, it can act as fuel and blow up the compression tester. In your face. Not good!
As far as the OP's compression #s, you're golden! It's more of the difference between cylinders that counts, but on a diesel you want to see usually at least 350 lbs or higher.
On a diesel, if you add oil to the cylinder, it can act as fuel and blow up the compression tester. In your face. Not good!
As far as the OP's compression #s, you're golden! It's more of the difference between cylinders that counts, but on a diesel you want to see usually at least 350 lbs or higher.
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switchback05
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
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May 28, 2008 12:38 PM
