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Unread 09-04-2013, 01:52 PM   #1
row684
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1984 CJ7 
 
Join Date: Sep 2008
Location: Logan, UT
Posts: 718
Burning a little oil.

So my 258 jeep which usually sits 8 months a year and maybe run the other 4 has started burning a little bit of oil. It comes out the exhaust when you rev it up and when doing a trail ride it starts puffing a little bit after a while like its building up at lower rpm's.
It still pulls fine up hills so I don't think it's rings. Valve seals? Stuck valve? Other???

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Unread 09-04-2013, 02:34 PM   #2
WillysCJ
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1976 CJ6 
 
Join Date: Jun 2013
Location: Witbank, South Africa
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Quick check. If it puffs smoke when you change gears then its valves. If it smokes the whole time its rings. Throw some broil or oil additive in and check if it gets better. If it does then its rings. It could just be a oil ring thats a bit sticky from standing a lot.
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Unread 09-04-2013, 03:04 PM   #3
seabass1858
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1983 CJ7 
 
Join Date: Jul 2013
Location: Hanover, Pennsylvania
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Might I also sugest a compression test if handy. Sometimes this would tell a story also. I would do a cold and warm test if possible.
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Unread 09-05-2013, 09:35 AM   #4
row684
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1984 CJ7 
 
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Location: Logan, UT
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Quote:
Originally Posted by WillysCJ
Quick check. If it puffs smoke when you change gears then its valves. If it smokes the whole time its rings. Throw some broil or oil additive in and check if it gets better. If it does then its rings. It could just be a oil ring thats a bit sticky from standing a lot.
It is not all the time. I threw some Seafoam in with the last oil change hoping it would clean up the valve seals if that is what it is. What would you recommend for the rings?
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Unread 09-05-2013, 09:37 AM   #5
row684
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1984 CJ7 
 
Join Date: Sep 2008
Location: Logan, UT
Posts: 718
Quote:
Originally Posted by seabass1858
Might I also sugest a compression test if handy. Sometimes this would tell a story also. I would do a cold and warm test if possible.
I will see if I can find a tester as mine is 2,400 miles away at the moment and let you know. Looking for 100-140 with less than 25% difference correct?
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