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Location:
Canberra
Registered:
May 2002
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engine vibration, why??
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Wed, 16 April 2003 09:41
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I thought 4AGE's were meant to be very smooth motors, yet mine seems to do nothing but vibrate. It's a turbo'd 4AGZE with aftermarket computer (haltech) setup as RWD in my TE72 (T18).
The vibration is not just a throbbing pulse like a big cam motor, its more of a high speed resonance, that rattles every loose body/interior part. Its got me absolutely stuffed. engine & gearbox mounts are good, no part of the motor touches the body of the car, its tuned beautifully, yet vibrates like a dog shitting peach pits!
Any ideas appreciated 
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Location:
MACKAY
Registered:
May 2002
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Re: engine vibration, why??
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Wed, 16 April 2003 11:22
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Try putting a strong rigid brace from the turbo down to the bottom of the block and also do the same to the plenum , Sometimes at a certain engine speed there will be some vibration and any thing hanging out off the motor like a turbo or inlet will amplify this vibration . This may not be the problem but you have to start the elimination process . ( GOOD LUCK ) .
Trevor
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Location:
Canberra
Registered:
May 2002
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Re: engine vibration, why??
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Wed, 16 April 2003 12:37
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Good idea. I hope it is that simple! There is already a brace for the turbo, but not the inlet manifold, so I'll start there.
If an exhaust is mounted too rigidly (sp?) can it transfer engine vibration badly also?
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Location:
MACKAY
Registered:
May 2002
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Re: engine vibration, why??
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Wed, 16 April 2003 12:48
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Yes , You can also try fitting a flex joint in the exhaust somewhere near the gearbox .
Trevor
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Location:
Wichita, Ks, USA
Registered:
May 2002
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Re: engine vibration, why??
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Wed, 16 April 2003 20:16
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are the engine mounts solid or rubber?
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