what would you guys do... - JeepForum.com

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post #1 of 8 Old 05-02-2013, 10:17 PM Thread Starter
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1995 ZJ 
Join Date: Mar 2012
Location: Toms river
Posts: 46
what would you guys do...

So I have a 95 zj, already rebuilt the trans, 3.5 inch lift, 31s. Very basis build. I blew the original motor in December with 154xxx on it. It developed a minor tap I could hear at idle and couple days later...you get the idea. Had a jy unit with" guaranteed" 80-90k on it installed. Over the past couple days, call it maybe paranoia, but I'm noticing the small slight tap developing. Is it possible I got a motor with the same problem as before? This click sound doesn't seem like its coming from the head like before. Its louder towards the oil pan. At this point I'm listening to all possibilities of what it could be via your guys experience. I'm already into this truck about 5k including labor cost give or take. Worst case scenario..would you rebuild or just say screw it and buy a new one? If I buy a new zj ied feel like I just wasted all that money. Torn on what to do.

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post #2 of 8 Old 05-02-2013, 10:29 PM
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1995 ZJ 
Join Date: Dec 2011
Location: Chattanooga
Posts: 2,310
Well, if the rest of it's in good condition, then I'd say run it till the engine gives, then look at used engines and look at new jeeps, price each one. Basically find out which is cheapest. Also depends on if your attached to that particular JEep or not.
Can't help as far as the tap, mines the 5.2. Though it does 'click' some coming from the intake/alternater/top area. Never bothered with it.

95 FiveTwo ZJ, DD, Lifted, Locked on 35s, Build (in progress)

My 5.9 swap (in progress)

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post #3 of 8 Old 05-02-2013, 10:34 PM
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1998 ZJ 
Join Date: Nov 2012
Location: Broken Arrow
Posts: 622
No idea what might be causing the noise, it would have to be seen in person for a diagnosis. Since it seems you may not be very skilled in engine diagnosis I would recommend taking it to a mechanic to find out what is going on and how serious the problem is.

Not trying to insult you.

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post #4 of 8 Old 05-03-2013, 05:49 AM Thread Starter
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1995 ZJ 
Join Date: Mar 2012
Location: Toms river
Posts: 46
Not insulted at all..it was that obvious huh..i mean with what I've spent on this ied feel like I lost the war you know? But when is enough enough lol
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post #5 of 8 Old 05-03-2013, 05:57 AM
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1992 YJ Wrangler 
Join Date: Oct 2010
Location: Birmingham
Posts: 292
Was the exhaust manifold reused when the engine was swapped? I would take a look at the exhaust manifold and check for any cracks. They are prone to cracking near the collector where the two pipes come together near the flange at the bottom. It's possible that you're just hearing normal engine noises that are magnified by an exhaust leak.

94 ZJ Laredo (sold)
98 ZJ TSI (sold)
92 YJ 4.0
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post #6 of 8 Old 05-03-2013, 09:30 PM Thread Starter
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1995 ZJ 
Join Date: Mar 2012
Location: Toms river
Posts: 46
That's a very good question. It might have been reused because I remember seeing the long block on the floor of the shop bare so there's a good possibility it was reused since I didn't see it on the original motor. Could it be a timing issue? I know with my last motor the noise got louder as I accelerated. With this one I only hear it at idle. I doubt the motor was even tuned up before it went in. I'm praying that it's a minor problem or something other than its on its last leg already. I'm going to get it checked out tomorrow by a couple mechanics to make sure I get a consistent answer. I'll keep you guys updated.
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post #7 of 8 Old 05-04-2013, 02:31 PM
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2009 XK Commander 
Join Date: May 2005
Location: Sioux Falls,SD
Posts: 500
Check the flexplate bolts. Loose flexplate bolts will knock or tick and will make it difficult to figure out where the noise is originating from....
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post #8 of 8 Old 05-05-2013, 09:04 PM Thread Starter
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1995 ZJ 
Join Date: Mar 2012
Location: Toms river
Posts: 46
Thanks guys..atleast you gave me some less upsetting scenarios lol
srieger is offline  

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