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Unread 03-19-2006, 01:35 AM   #1
fire521
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where did the oil go???

i have a 93 yj I6 it has 146,000 on it and the motor blew up, went to a salvage yard and picked uoe up that had 50,000 on it now the problem it has been in for approx. 4000, miles and i have had to add 2 qts. to it but there is absolutly no smoke from the exahust, no leaks, so where did it go? did the TJ goblins come and try to wreck my yj by stealing oil? or is there some other explination i am missing?

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Unread 03-20-2006, 12:32 PM   #2
Fullsize_CJ5
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It prolly burned the oil, you just didn't see it. ALL engines burn oil, they have to. The oil on the cylinder wall is what ultimately seals the cumbustion chamber, every time it fires a very tiny bit of oil burns away. But with worn rings or valves you'll burn a lot more. I'd check the compression and see what the rings and valves look like.
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Unread 03-21-2006, 06:43 AM   #3
75SV1
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Is that with the 4.0L or the 258? Two quarts in 4K isn't a bunch. Still, I'd look at the PVC valve of CCV tube (if 4.0). Also, some people rav about AutoRX. Your rings might be sticking. Other problems could be vavle guides worn.
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Unread 03-21-2006, 08:36 AM   #4
de6w6it
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Valve stem seals, piston rings, valve guides could all be suspect...
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Unread 03-22-2006, 10:08 PM   #5
fire521
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it is the 4.0 iwill check the compression tommorow and let you all know, also never herad of autoRX what does it do and wheere can you get it? thanks guys
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Unread 03-23-2006, 09:36 AM   #6
75SV1
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Auto RX is a flush or conditioner. I haven't used it, but many say its the best.
http://www.auto-rx.net/
Also, you might try Sea Foam. Its avialable at NAPA, I think. I have used 'Motor Flush' in the past with no ill effects that I know of. Still, many think its a bit harsh and has been know to cause problems. Berrymann's B-12 is simular to Sea foam. It might be worht a try.
Tom
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Unread 03-23-2006, 10:32 AM   #7
75SV1
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You also might try a different brand of oil. What type and brand of oil do you use? Also, oil filter? I've heard of some people using different oil and they have less oil consumption.
Tom
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