vibrations from motor with Petroworks 16v kit - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 10-01-2003, 06:18 PM
Wyld_Bill
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vibrations from motor with Petroworks 16v kit

Anyone on here running this kit? I'm trying to get rid of vibration problems on my Zook. I've been messing around with my driveshaft a lot but I have come to the conclusion that a lot of the vibration is coming from my motor. I just recently swapped in a 16v using the new Petroworks kit. I'm looking at a few things as being the possable source of the vibes. 1. the flange on the exhaust manifold it up tight against the inner side of the Zook's frame. 2. the motor mounts seem to be more rigid. 3. the exhaust piping may be touching on my skid plate at times. Anyone else have vibrations one or more of these things?
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post #2 of (permalink) Old 10-01-2003, 07:45 PM
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Re: vibrations from motor with Petroworks 16v kit

How are the ujoints on the Intermediate shaft? I had one freeze on the sami and It caused me some grief till I found it.

Just a thought. [img]images/graemlins/confused.gif[/img]
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post #3 of (permalink) Old 10-01-2003, 08:03 PM
 
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Re: vibrations from motor with Petroworks 16v kit

I have had vibes from a nasty exhaust system a local shop installed on a Zuk I had. Exactly as you suggested, the downpipe was hitting the frame rail ocassionally at idle and always when I got on the gas. Fixed it with a torch and a pry bar to flatten out the side of the pipe and get it away from the frame. If this is not the problem it could be a driveline issue. I have used most every 1.6 kit on the market, but never installed the Petroworks kit so I have no clue whether that could be the problem or not. Rigid mounts will allow you to feel the motor, but should not cause excessive vibrations. I bought a Zuk with the drivers side motor mount welded together and did not feel any odd vibes!

Good luck isolating the problem.

Sean
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post #4 of (permalink) Old 10-01-2003, 08:29 PM
 
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Re: vibrations from motor with Petroworks 16v kit

Sean is on target, get thoses pipes off the frame and skid plates.
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post #5 of (permalink) Old 10-02-2003, 09:35 AM
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Re: vibrations from motor with Petroworks 16v kit

Hey Wyld_Bill,

I too have the 16v PW kit and did experience the additional vibrations that you mention. First off get the header off the frame. If yours is like mine, I had VERY tight clearance on the header side... in fact, under hard acceleration the header would hit the frame and send a 'clunk' along with the vibes. Just take a grinder and mark the area and give yourself a little more room to move in there.

Secondly, I found that the mounts are extremely stiffer fore/aft and must be very tight. I loosened up the plates at the base of the mounts, and retightened the rubbers as tight as I could get them, then retighted the plates.... problem solved... [img]images/graemlins/grin.gif[/img]
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post #6 of (permalink) Old 10-02-2003, 08:03 PM
Wyld_Bill
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Re: vibrations from motor with Petroworks 16v kit

Thanks B.B. I torched out the frame a little at the exhaust flange (it killed me to do that). I found a place that teh cat. converter may have been touching on th eskid plate & fixed that. Juat took it for a test drive,...much better now!
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