89 saleen

[Kenny laird]

Am geting a bad vibration between 4 and 5 thousand rpm. Have checked everything i can thnk of pilot bearing throughout ect. I even does it in neutral. Any ideas.

[Aggiesrok]

Did you check your motor mounts?
You'll get more answers if you post this in the right section. Go to the 1979-1995 GT section or the specialty cars section for Saleens, etc.

[tfalk]

Motor mounts or harmonic balancer would be the first things to look at...

[Kenny laird]

Thanks im new on the site wasnt sure were to post it motor and tranny mounts are new Thank you

[tfalk]

Then I would seriously look at the balancer... is it original? If replaced, are you
sure it is the correct one for the motor?

[Kenny laird]

Its the original one havent replaced. I have never heard of one going bad Thanks so much im am so frustrated at this point i have pulled tranny 3 times. Everything is new as far as drivetrain goes

---------- Post added at 01:19 PM ---------- Previous post was at 01:13 PM ----------

Its completely smooth other than between 4 and 5. Its weird

[Aggiesrok]

Originally Posted by Kenny laird

Thanks im new on the site wasnt sure were to post it motor and tranny mounts are new Thank you

No prob, just wanted you to have the most exposure for answers.
Have you watched it at 4500? Maybe a pulley is off balance and causing serious vibration at high rpm.