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Can valvetrain noises be reduced or eliminated?


 
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Mopar500
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Joined: 21 Feb 2006
Location: Colorado

PostPosted: Sun Apr 09, 2006 6:18 pm    Post subject: Can valvetrain noises be reduced or eliminated? Reply with quote

My XJ has 150K so I know the valvetrain is worn, but it is so noisy, it sounds like a diesel (nothing against diesels). Local shop says there is nothing to adjust.
Before I decide to live with it, I just wanted to confirm with you all.

Thanks.
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Lowrider
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Joined: 08 Nov 2005
Location: Washington State

PostPosted: Sun Apr 09, 2006 6:35 pm    Post subject: Reply with quote

My '97 Cherokee has had a rattle since about 40,000 miles. Other than that it runs like a top. It now has 99,000 on it. I used to worry about it. I don't anymore.
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Renegadestang
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Joined: 07 May 2005
Location: Marietta, GA

PostPosted: Mon Apr 10, 2006 6:00 am    Post subject: Reply with quote

Mopar, I'd like to recommend that the next time it's due for an oil change, pick yourself up a detergent like Marvel Mystery Oil. It'll give the valvetrain a good cleaning and possibly cure up any ticking and clicking...
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1981 Jeep CJ-7 Renegade: 307-4V SBC, SR-4 4-spd., 31x10.5 Wild Spirit's

1966 Ford Mustang: 289-4V, C4 Auto.
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Mopar500
Member


Joined: 21 Feb 2006
Location: Colorado

PostPosted: Mon Apr 10, 2006 8:26 am    Post subject: Reply with quote

The detergent sounds like a good idea even if it doesn't quiet things down.
I will live with it, if I have to. I just want to make sure I have to first.

Thanks.
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beaumecxxx
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Joined: 21 May 2006
Location: Vancouver, Canada

PostPosted: Sun May 21, 2006 10:40 pm    Post subject: Valve train noise solution Reply with quote

Hi guys, I have an old beater of a Jeep Cherokee (aka the Tractor), 1988 with 150,000 miles. The valve train was making a lot of noise as well as the rear differential. My mechanic said that there was not much that could be done other than a complete engine rebuild (not worth for this age Jeep). (I had no desire to rebuild the rear diff either...too much money Razz )

The solution he suggested was adding LUCAS HEAVY DUTY OIL STABILIZER, easily found at any automotive store. Costs about $10 US per quart.

I put 1 quart into the engine during oil change and a 50% Lucas oil / 50% diff oil in the rear differential. The valve train is much much quieter (I would say practically normal noise level) and so is the rear differential.

The Cherokee is used in the local mountains (I live in Vancouver Canada) on nasty logging roads (deactivated with ditches to try to stop people using the old roads) with no problem. All stock....and what a beast! Nothing seems to stop my Tractor Finger
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