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Old 09-24-2011, 08:45 PM   #1
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PLEASE help!!! motor knock leave comments 93 jeep wrangler

I just traded for a 93 jeep wrangler it has a 4.0 staright 6 and it only has 116000 on it. Runs and drives great! BUT! The motor is knocking/ticking more of a knock it is not very noticable when first starts up but after about 30 seconds to a min the knock gets louder. I can put the engine under a loud by putting it in gear and it seems to make it quiter the knock seems to get faster as I push the gas. I changed the oil and there was not metal shaving or anything else in it just dirty oil. I have heard that it could possably be the tourqe converter bolts to the flex plate possibly the bolts backed out also a lifter or rod or bearings? The knock seems to be at the top middle part of the motor when standing above the motor BUT when you get under the jeep it is loud aswell. And help? Thanks

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Old 09-25-2011, 02:44 PM   #2
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My 92 4.0 started knocking an clicking around. Was still running strong, but I could tell it was bad. Lost oil pressure one day. #6 piston ring welded themselves to piston and knocking was piston slapping around in cylinder. Found that out during rebuild. Hope yours isn't as bad.

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Old 09-25-2011, 07:05 PM   #3
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I just check it out today it is something in the bottom end rod knock or piston skrit something like that! So I think I am gonn pull the motor and get it rebuilt I know a gut here in town that builds races motors mostly but said he would do the rebuild on my jeep for 1000 bucks
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Old 09-28-2011, 07:28 PM   #4
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Not bad, I spent 1150 on machine work, 450 on rebuild kit and a lot more on random parts.
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