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Expert Help Needed Urgently

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onepimpclipse

15+ Year Contributor
974
3
May 28, 2003
Winter Haven, Florida
I just had some AEM cam gears and a new timing belt installed at a local garage. Now at idle the motor shakes and sputters almost like a V-8 with a new cam job (obviously not as loud or deep). As soon as you give it gas it smoothes out and drives fine. The rough idle worries me alot. The last thing I need are bent valves. I'm sure I need to adjust the cam gears. Now they are set at 0 on both cams. I'm too broke to put it on a dyno even though thats the best way. Other mods I have are headers, exhaust, intake, plugs, and wires. Please any suggestions that could help would be appreciated.
99 Eclipse N/T.



:dsm: Stephen :dsm:
 
Well if the gears are set to 0 on both then it should be running normally without sputtering or anything. With what you describe the gears are off timing. I have heard that the AEM timing marks were wrong to begin with. Go to www.2gnt.com and search for aem cam gears and find the thread where it is all explained. But I'm telling you if the cams were in right, and both were at 0 then the car should run the same as it did before they were installed.
 
Thats exactly what I thought. The place I got it done at is saying my check engine light is on so they tested to see why and they are saying its something with the timing that was already there. If it was already there wouldn't it have idled rough before I got the timing done? It might just be me but I'm starting to think I'm getting jerked off since I dropped the car off on Tuesday and its now Friday. Everytime I call to find out whats going on its some other bulls#@$ thing that "could" be causing it. I just want my damn car back.
 
Similar thing happened to me when I had a new timing belt installed. The mech didn't have the timing marks lined up right and my ride idled really bad. But it was fine once he lined everything back up. You just need to have it timed again.
 
The timing marks are NOT in the same spots on the AEM gears. Chances are it is not timed properly. When I installed mine I had to put a stock gear on top of the AEM gear and make sure where I wanted to put it. It is possible to adjust out the timing gear error since the gears are adjustable but I would really recomend having them set properly and THEN adjust them for optimizing the gears potentials and NOT for solving a mechanical timing problem.
Doug
 
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