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Old 04-19-2017, 09:00 AM   #1
damiennn
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APR pendulum mount rattle - folks, please help a brother out..

folks - need your opinions / suggestions..

Not too long ago I had the APR pendulum mount installed.
Ever since & upon start up only, I have been getting a rattling sound (definitely metal against metal) coming from right under my feet.
You cant hear it when outside the car, and can only hear it while in the car. It happens only when the car is cold, & only when stationary.
Once you have been driving for 5-10 mins & the car warms up / engine calms down, the rattle completely goes away.

Therefore, it must be the larger pendulum mount hitting something under the car, while the engine is still settling down.

I always have an option of putting the OEM mount back on, but that seems silly.

So 2 ideas I came up with:

IF I upgrade the engine mounts to a stiffer set (034 or BFI) - will the stiffer motor mounts help the situation by not allowing the drive train to move as much, OR will make things worse?
Is there a ghetto fix for this rattle I can look into? i.e. something like placing a double sided tape, or a small piece of rubber between 2 points of contact (should I ever find where its coming from)?



Please feel free to share thoughts.. anything helps.
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Old 04-19-2017, 09:10 AM   #2
bart2278
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I would get on the underside and see if the mount is hitting the subframe. If it is then set your car on fire. If it isn't then set your car on fire.
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Old 04-19-2017, 09:15 AM   #3
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If the issue started right after, you could simply remove it and reinstall it. Make sure the washers are installed and torque it down to spec.

Otherwise like bart2278 said, setting it on fire might not be a bad idea. But definaty check if the pendulum is properly installed and not hitting the subframe.
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Old 04-19-2017, 09:17 AM   #4
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great.. thanks, now STFU & go away.

Quote:
Originally Posted by bart2278 View Post
I would get on the underside and see if the mount is hitting the subframe. If it is then set your car on fire. If it isn't then set your car on fire.
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Old 04-19-2017, 09:25 AM   #5
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In general, upgrading the mounts will add to in cabin vibrations so I don't know if that is what you want to in this situation. However, I do have upgraded mounts and would recommend them if your engine is rocking a bunch while driving because they do do a good job of dealing with that.

I will say I haven't heard of this being an issue before so I would echo what the others have said and get under your car to see if there is contact with subframe and possibly re-install it.
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Old 04-19-2017, 09:41 AM   #6
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great.. thanks, now STFU & go away.
There was real advice in there you dolt. Sounds like it might have been installed wrong.
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Old 04-19-2017, 09:41 AM   #7
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Hmm.. yeah, well I had it installed at RSW in NJ, & then I took it back to be looked at it after I realized the rattle. The boys inspected it said all is well, but they could not even hear the issue since the car was already warm when it got to them..

Unfortunately, I have no safe way of lifting the front at home. Car is too low for ramps & I only have one jack - I was hoping someone else had the same issue, I could learn from.

stiffer motor mounts.. that was just a thought, since it would make sense that motor/tranny would move less with stiffer mounts - i.e. less chance of pendulum mount hitting anything.

Quote:
Originally Posted by thedude4bides View Post
In general, upgrading the mounts will add to in cabin vibrations so I don't know if that is what you want to in this situation. However, I do have upgraded mounts and would recommend them if your engine is rocking a bunch while driving because they do do a good job of dealing with that.

I will say I haven't heard of this being an issue before so I would echo what the others have said and get under your car to see if there is contact with subframe and possibly re-install it.
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Old 04-19-2017, 10:32 AM   #8
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Quote:
Originally Posted by damiennn View Post
Unfortunately, I have no safe way of lifting the front at home. Car is too low for ramps & I only have one jack - I was hoping someone else had the same issue, I could learn from.
1. Jack up one side of the car using the front pinch weld.
2. Place ramp under tire (sloped side of ramp forward).
3. Lower car onto ramp.
4. Repeat on other side of car.

Alternatively, buy a $30 set of jack stands.
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Old 04-19-2017, 08:05 PM   #9
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You have a stiffer pendulum but you may have the OEM subframe bolts still installed. Have them look at the subframe, it might be time for the Tyrolsport deadset kit, or 034's kit.
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Old 04-20-2017, 07:49 AM   #10
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Quote:
Originally Posted by Tony48 View Post
1. Jack up one side of the car using the front pinch weld.
2. Place ramp under tire (sloped side of ramp forward).
3. Lower car onto ramp.
4. Repeat on other side of car.

Alternatively, buy a $30 set of jack stands.
yep, gonna get +1 floor jack & use ramps..

Quote:
Originally Posted by Bozz View Post
You have a stiffer pendulum but you may have the OEM subframe bolts still installed. Have them look at the subframe, it might be time for the Tyrolsport deadset kit, or 034's kit.
got the TS deadset kit already on the car..


here is a crappy 29 sec vid of what I could record from the cabin.. again, you hear nothing from the outside.. just from inside. def the mount hitting the subframe.. & as soon as the car settles down, its gone.

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Old 04-20-2017, 09:45 AM   #11
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Hate photobucket, so many ads. Video doesn't appear to be working for me.
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