Compression question
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New User
Joined: Nov 2021
Posts: 19
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From: Billings mt
Compression question
I did a compression test on my 02 7.3 and found cylinder 3 at 150 running. Smoking like a dog, so I unhooked 3 and and put it all back together and I'm gonna run it. Is that ok and if so how long?
FTE Chapter Leader
Joined: Jan 2005
Posts: 13,127
Likes: 4,727
From: Henderson, NV
Not a great idea to run it that way. The vibration that results is bad for a lot of the components in the engine especially the crank. You will also be fumigating everyone around you with unburnt fuel with running compression that low.
Butt-Head
Joined: Apr 2004
Posts: 9,455
Likes: 2,938
From: Reed Point, MT
Compression that low is probably a broken ring. You may soon end up with coolant in the crankcase as the cylinder wall will get a groove worn into it.
That's when machine work gets expensive.
That's when machine work gets expensive.
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