mywhite89
Registered User
I am trying to work out an engine vibration problem that occurs between 2100-2400 rpms. The balancer is a bhj and is new, new solid rubber stock height motor mounts. I had every piece except the spec clutch and flywheel checked to ensure a good neutral balance. Those pieces come balanced, at least they should. I can rev the car to 5,000 with no unusual vibration above 2400. Anybody have an idea on what else it could be.
My only other idea besides an engine balance problem is the tranny mount. The guy before me ditched the old mount and put in a solid steel mount which may be putting everything at a slightly different angle. It has poly outer crossmember mounts as well.
The vibration is not horrible, but is definietly noticable and annoying. a 75mph cruise puts me at about 2100 rpm's. I do not see any engine pieces or exhaust touching the frame to cause a vibration either.
My only other idea besides an engine balance problem is the tranny mount. The guy before me ditched the old mount and put in a solid steel mount which may be putting everything at a slightly different angle. It has poly outer crossmember mounts as well.
The vibration is not horrible, but is definietly noticable and annoying. a 75mph cruise puts me at about 2100 rpm's. I do not see any engine pieces or exhaust touching the frame to cause a vibration either.
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