 LT1 vibration |
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 Apr 20 2015, 06:45 PM
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newbie Group: Members Posts: 13 Joined: 18-March 12 From: Middlefield Ohio Member No.: 141,596  |
Does anyone have any experience with polyurethane motor mounts in a LT1 car? A customer brought in a 95 Trans Am that has a significant vibration at 2500 rpm the motor seems to run ok, but it has poly mounts in it, and I was wondering how smooth these cars are with these mounts in normally. Any thoughts?
This post has been edited by tbone17: Apr 20 2015, 06:49 PM |
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Apr 20 2015, 09:32 PM
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Experienced Member  Group: Advanced Members Posts: 2,038 Joined: 3-March 10 From: Huntersville, NC Member No.: 9,105 |
QUOTE (tbone17 @ Apr 20 2015, 02:45 PM)  Does anyone have any experience with polyurethane motor mounts in a LT1 car? A customer brought in a 95 Trans Am that has a significant vibration at 2500 rpm the motor seems to run ok, but it has poly mounts in it, and I was wondering how smooth these cars are with these mounts in normally. Any thoughts? Welcome! I'm assuming this vibration isn't under load, correct? How about under load? Any mods like an underdrive pulley kit? |
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Apr 23 2015, 06:24 PM
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#3
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newbie Group: Members Posts: 13 Joined: 18-March 12 From: Middlefield Ohio Member No.: 141,596 |
QUOTE (Steve91T @ Apr 20 2015, 09:32 PM) QUOTE (tbone17 @ Apr 20 2015, 02:45 PM) Does anyone have any experience with polyurethane motor mounts in a LT1 car? A customer brought in a 95 Trans Am that has a significant vibration at 2500 rpm the motor seems to run ok, but it has poly mounts in it, and I was wondering how smooth these cars are with these mounts in normally. Any thoughts? Welcome! I'm assuming this vibration isn't under load, correct? How about under load? Any mods like an underdrive pulley kit? Thanks, for the welcome! I've been lurking on here for years, but this is my first post. You're correct the vibration is with no load, car seems to run fine, it still vibrates when you're driving it but it doesn't seem as bad, it doesn't appear to have under drive pulleys, but the balancer doesn't appear stock, I can't find any tags or stampings on it, but I've never seen a factory balancer that has a removable outer ring held in place with large snap rings, but honestly I've never worked on a LT1 before. |
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Posts in this topic
tbone17 LT1 vibration Apr 20 2015, 06:45 PM
Blainefab QUOTE (tbone17 @ Apr 20 2015, 11:45 AM) D... Apr 20 2015, 09:33 PM
tbone17 QUOTE (Blainefab @ Apr 20 2015, 09:33 PM)... Apr 23 2015, 05:57 PM
Blainefab QUOTE (tbone17 @ Apr 23 2015, 10:57 AM) Q... Apr 24 2015, 01:26 AM CrashTestDummy QUOTE (Blainefab @ Apr 20 2015, 04:33 PM)... Apr 23 2015, 08:33 PM tbone17 QUOTE (CrashTestDummy @ Apr 23 2015, 08:3... Apr 24 2015, 01:15 AM CrashTestDummy I remember having to take the flywheel/pressure pl... Apr 25 2015, 01:34 PM tbone17 Well, Ichanged motor mounts and trans mount back t... May 2 2015, 12:18 PM nape QUOTE (tbone17 @ May 2 2015, 07:18 AM) I... May 3 2015, 07:59 PM |
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