First Generation Firebird-L Mailing List ......................................................................... I had similar vibration after I switched to a Hay Steel flywheel. If its a motor rotational balance issue you should have several strong harmonic at like 800 1600 3200 rpms
>>> [EMAIL PROTECTED] 5/29/2008 1:20 PM >>> First Generation Firebird-L Mailing List ......................................................................... Thanks for the responses. To answer the questions: - car vibrates in neutral, but vibes become more pronounced as RPM rises. There's a "sweet spot" around 2000-2500 where the vibration seems less intense. - car vibrates at idle, around 800 RPM - Transmission -- 4-speed Richmond manual One thing I've noticed -- the vibration rattles the dashboard (I can hear the car keys jingle!) when I let go of the clutch a little too soon, so I tend to over-correct with the gas pedal. - DOB On May 29, 2008, at 12:11 PM, Reynolds, Chris wrote: > First Generation Firebird-L Mailing List > ......................................................................... > Dan, > Can you feel the car vibrate in neutral, or does it only occur when > the car is in gear? Do you have an auto or manual trans, and does the > vibration only occur in certain gears? Does the vibration occur at > idle, > or only when the engine is revving? There should be no vibration in > your > car. If the vibration is bad enough that you are worried about bolts > loosening, then replacing the seats is not what you need to do. > Depending on the answers to the above questions, there are several > things you need to check. If the vibration only occurs when you are > driving, then have the u-joints and driveshaft checked and > balanced. If > it happens at idle, check the motor mounts and transmission mount. If > it happens in gear, it could be something in the trans or torque > converter. If it happens all of the time, see if your body bushings > are > shot. I assume that since you have taken it to a shop that they > checked > the obvious stuff, like an exhaust pipe or muffler resting on the body > somewhere, but I would look for this as well. I'm sure there are > other > things to look at, but these come to mind right off. > > Chris R. > 69 Conv 350 > 69 Conv 350HO ------------------------------------------------------------------------ Submissions to Firebird-L: <[email protected]> Unsubscribe from Firebird-L: <[EMAIL PROTECTED]> Help: <http://FirstGenFirebird.org/firebird/Firebird-L.html> Classifieds: <http://FirstGenFirebird.org/ubb/> Owner Pictures: <http://FirstGenFirebird.org/show/> Donations: <http://FirstGenFirebird.org/store/cart.mv?999999> FGF Merchandise: <http://FirstGenFirebird.org/store>
