Drive Train Vibration
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Originally Posted by torqvette
The transmission shakes while I'm reversing, why is this? I think it might be because of the large cam... the engine doesn't like low rpms. What do you guys think?
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 2,412
Likes: 3
I haven't had a chance to check the trans mount yet but I reached in there and felt the rubber on the motor mounts, it feels fine.
But I noticed something else, the fan sits closer to the bottom of the shroud than it did with the old motor and the power steering pump pulley also sits much lower, closer to the frame.
Is it possible that I switched the motor mounts (RH->LH & LH->RH) or... ?
But I noticed something else, the fan sits closer to the bottom of the shroud than it did with the old motor and the power steering pump pulley also sits much lower, closer to the frame.
Is it possible that I switched the motor mounts (RH->LH & LH->RH) or... ?
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Originally Posted by torqvette
I haven't had a chance to check the trans mount yet but I reached in there and felt the rubber on the motor mounts, it feels fine.
But I noticed something else, the fan sits closer to the bottom of the shroud than it did with the old motor and the power steering pump pulley also sits much lower, closer to the frame.
Is it possible that I switched the motor mounts (RH->LH & LH->RH) or... ?
But I noticed something else, the fan sits closer to the bottom of the shroud than it did with the old motor and the power steering pump pulley also sits much lower, closer to the frame.
Is it possible that I switched the motor mounts (RH->LH & LH->RH) or... ?
HMMMM? ... sound familiar?
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
You won't be able to feel the rubber seperation with your hand...you have to remove the two motor mount bolts jack up the engine about 1/2 inch and then look for the seperation..
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Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 2,412
Likes: 3
Took the mount out, it wasn't broken... it just felt like it because there is a hole going through it. I replaced it with the poly one anyways.
I didn't have time to take it out for a test drive but just in case the problem is still there what else could it be?
I didn't have time to take it out for a test drive but just in case the problem is still there what else could it be?
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 2,412
Likes: 3
My GM tech buddy said that it might be "clutch chatter." The disc might be warped, he said that if I ride the clutch the problem should go away. Is there some procedure for this?
Also, my powersteering crank pulley has a small crack and some of the fan blades are bent from when my motor mount broke and the fan hit the shroud. Could this also be a cause?
Also, my powersteering crank pulley has a small crack and some of the fan blades are bent from when my motor mount broke and the fan hit the shroud. Could this also be a cause?
Race Director
Joined: Feb 2005
Posts: 16,100
Likes: 17
Originally Posted by torqvette
My GM tech buddy said that it might be "clutch chatter." The disc might be warped, he said that if I ride the clutch the problem should go away. Is there some procedure for this?
Also, my powersteering crank pulley has a small crack and some of the fan blades are bent from when my motor mount broke and the fan hit the shroud. Could this also be a cause?
Also, my powersteering crank pulley has a small crack and some of the fan blades are bent from when my motor mount broke and the fan hit the shroud. Could this also be a cause?
And,that could cause vibration..what does your vette feel like in neutral ?
Rich
