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Discussion summary
YOUR RESEARCHNew motor mounts installed and now I feel a shimmy/vibration
Leading reported evidence
Replace motor mounts
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Performed · outcome unconfirmed
I replaced my motor mounts with OEM stock about 2-3 years ago.
New motor mounts installed and now I feel a shimmy/vibration
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Leading evidence: 'Replace motor mounts' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check air pump, since you probably had' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
And check the air pump, since you probably had to move it, to see if it�s intact.
New motor mounts installed and now I feel a shimmy/vibration
Check front trans mount and double
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Suggestion
I'd check the front trans mount and double-check your installation of the other mounts, we're all human.
New motor mounts installed and now I feel a shimmy/vibration
Check headroom above the engine (is anything making contact
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Suggestion
Also check for headroom above the engine (is anything making contact that wasn�t before)?
New motor mounts installed and now I feel a shimmy/vibration
Check installation of the other mounts, we're all human
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Suggestion
I'd check the front trans mount and double-check your installation of the other mounts, we're all human.
New motor mounts installed and now I feel a shimmy/vibration
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Rennlist: 1 discussions
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After installing new motor mounts I notice a slight shimmy/shake when idling and I feel a vibration thru the clutch pedal while shifting at rpm. I'm trying to figure out if maybe the flywheel is somehow out of whack or what? the engine is running smoothly
Did you use OE motor mounts? Did you make sure the square part of the motor mount lined up with the square holes in the engine carrier? If not it can transmit a lot of vibration into the car.
Maybe my transmission mount is bad? my motor mounts were shot.....drooped about an inch. by stiffening up the back, maybe the front now wiggles. I can't figure out how it would get into the clutch peddle
@dougn
Hello, if you didn't feel anything before changing them, and were doing this preventatively, you shouldn't feel anything now. Something didn't go right during the installation. I would take them out one at a time and reinstall and torque to spec. As others have pointed out, make sure you get the bolt lined up correctly or this could cause issue. If using the new OE units you shouldn't feel any vibration. Enjoy!
+1.
OP: A sagging engine that�s now 1-2� higher could shift things around. BTW, I feel the throw out bearing in my clutch pedal. It makes a funny mouse cage noise sometimes. I suspect I, too, need a new trans mount. I replaced my motor mounts with OEM stock about 2-3 years ago. No issues like you have, but I agree with checking the trans and motor mounts again. Also check for headroom above the engine (is anything making contact that wasn�t before)? And check the air pump, since you probably had to move it, to see if it�s intact.
One last thing: did you drive the nut all the way into the mount, fully? It�s a long way to go from the stud. If one side is right and the other is loose, the engine will sit on a tilt.
upon further investigation, I feel the vibration thru the clutch peddle only during peddle movement and only at rpm above idle (transmission out of gear). so, I can depress the clutch at idle and feel nothing. I do the same thing at some steady rpm say 2500 and I feel the "tickle" during the movement. If I hold the peddle in a steady position I don't feel anything
I tracked down this thread and will remove and have a look at my slave cylinder. This seems like it fits the symptoms
https://rennlist.com/forums/997-foru...tch-pedal.html
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