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Unread 01-30-2002, 10:02 PM   #1
nvyblue_cj7
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Join Date: Jan 2002
Posts: 24
Piston Rings on straight-six

The piston rings are supposedly shot on the good old 6 cylinder, the guy told me I could probably get another couple thousand miles out of them before their gone. Should I just replace the old rings, get a rebuild, or just go all out and swap it for an eight cylinder?

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1984 CJ7-31" BF Goodrich AT Tires, Auto, 258 ci, Pioneer sound, 2 barrel Weber carb, undergoing some body work and exhaust work sometime soon.

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Unread 01-31-2002, 08:02 AM   #2
bodi
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I had the same problem with my 83 so i decided to do a complete rebuild. after reading numerous posts about both I6's and V8's i decided to stick with the 258. easy engine and rebuild will be less expensive.
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83 CJ7 w/remanufactured jasper 258 I6 w/t-5, Weber carb, new exhaust, PS, PB, 2 1/2" Lift, 31" BFG's, herculined interior and s**t brown paint job (for now) "in to deep..but thats when it starts getting fun"
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Unread 02-03-2002, 07:20 PM   #3
Mugzilla Pavelko
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check your compresion before you tear into anything. Sometimes, people screw up and give crappy suggestions. It never hurts to check it out first...

mug
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Unread 02-26-2002, 05:10 PM   #4
Jeep Daddy
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I second Mugs. Do a compression check. If the compression is better good after a couple of squirts of oil in the cyl., then it's definately bad rings. If the compression doesn't go up when you squirt some oil in there, then you need a valve job. I've heard of people that do valve jobs, and a few miles later they experience blowby because of weak rings. So doing a valve job only is a bit of a risk.
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