mild83

I've got a decent amount of Shake in the car when I shut it off. I also feel like I'm getting a lot of...vibration(?) through the steering wheel when driving. I don't see any leaking on the mounts, but I thought I recalled seeing the engine shaking at turn off a sign.

Fweasel

iTrader: (6)

Yep, sound like what my car was doing, but I had stains on the oil pad as well from both mounts leaking.

mild83

I haven't seen any leaking yet, but it really rattles when revving as well.

Becker

iTrader: (4)

Definitely check out your harmonic balancer. Wobbling balancer could be a cause of vibration as well. My car had both when purchased at 75k. Now I have dual mass flywheel vibrations and issues lol.

Look at your engine shake at idle and shut it down. You can see if your mounts are worn

FoD

They are bad straight out of the factory. Replace them with poly mounts.

coltboostin

LOL sad but true.

Poly mounts will transmit more harmonics/vibration tot he chassis though.

MN_V

iTrader: (5)

Mine are still good at 110k miles. To answer your question, engage the clutch while keeping on the brake and have someone watch the engine. Do this rocking the clutch on and off several times. If they've collapses or are hollow they will allow the engine to visibily rock side to side depending on the deflection of the power on/off.

Fweasel

iTrader: (6)

Compared to leaking stockers, my car is smoother with the poly's installed.

ls1247

iTrader: (2)

you know your motor mounts are bad when you take them out of the car and dust pours out of them..

installed umi mounts and got the added bonus of being able to lower the motor almost an inch by taking the through bolts out which made the clutch install easier....

Becker

iTrader: (4)

or when you take them out and they dump fluid allllll over you...damn passenger mount ruined a good shirt

mild83

So from what I'm seeing, looks like UMI are the way to go with the heat shields? I don't think I've seen any threads with anyone complaining about heat damage.

Fuzzy_Wuzzy

iTrader: (8)

They are probably the last mount you will need. But they do cause more vibrations.

odthetruth

iTrader: (4)

I love my UMIs. Had them for years in there, and checked em not too long ago... Still solid as hell. LOL

mild83

What kind of vibrations and where? Just more vibe through the steering wheel? When the car shuts off?

81LS1Camaro

iTrader: (1)

I installed revshift blue ones and like them. Cut my vibration down to almost nothing.

LeanPocket

iTrader: (6)

They leak from the top of the mounts, if it shakes like a diesel truck when you shut it off, your mounts are bad.

Every MM will go bad, just buy the poly mounts and be done with it.

mild83

Yes, that's exactly what it feels like. I couldn't think of how to describe it, but that is perfect.

LeanPocket

iTrader: (6)

dont forget to do your trans mount too.... they need to be done at the same time.

mild83

Haven't replaced them yet, but have noticed a vibration/shimmy during acceleration/deceleration when engaged in gear. I feel it through the steering wheel and in thr front/bottom of the car, if that makes sense.

When the clutch is depressed, it's smooth and no issues. Related?

BudRacing

iTrader: (3)

Hard to say... but I know a good way to find out.

REPLACE THOSE MOUNTS!