1978 Jeep CJ7 compression

Tiny
TDJ41
  • MEMBER
  • 1978 JEEP CJ7
Engine Performance problem
1978 Jeep CJ7 6 cyl Four Wheel Drive Manual

Need to check the compression. What should it be?
Tuesday, December 16th, 2008 AT 1:27 PM

1 Reply

Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
You're not really looking for a set number.

You want all of the cylinders to be within 10% of each other.

But most of the time I get 110 to 140 to give you an idea.

I've never seen an engine run below about 85
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Tuesday, December 16th, 2008 AT 8:36 PM

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