1978 Jeep CJ7 compression

1978 JEEP CJ7
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TDJ41
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  • 1 POST
Engine Performance problem
1978 Jeep CJ7 6 cyl Four Wheel Drive Manual

Need to check the compression...what should it be?
Dec 16, 2008 at 5:27 AM
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BUDDYCRAIGG
  • ✓Experienced 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
Dec 16, 2008 at 12:36 PM
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