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IMRC Failure caused by NVH
#1432421 11/09/05 05:51 AM
Joined: Nov 2000
Posts: 1,101
Thornhill, Ontario
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timeless420_dup1 Offline OP
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timeless420_dup1
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Thornhill, Ontario
I beleive that my IMRC may have recently failed due to NVH (mainly V&H) from all my filled mounts. I've had all my mounts filled with 94 ShoreA for about 5 months now and now my IMRC is finally crapped out for good (no problems until end of Sept). One thing I noticed now is that there is a rattle in the box that I did not notice before hand when I was reassembling my motor this summer (not sure if this is typical).

My question is, could the additional vibration and harmonics from my filled mounts be the root cause for my IMRC failure or is it just a crap design destined to fail? If it could be the V&H what is the best way of preventing it from happeing it again? Would mounting it on the valve covers isolated by rubber bushings help or should go as far as relocating it somewhere else completely isolated from the vibrations and harmonics of the engine?

Thanks

Then: 99 Silver Frost SVT #1919 237hp/219tq All Motor Now: 06 White STI Parts 4 sale
Re: IMRC Failure caused by NVH
#1432422 11/09/05 06:06 AM
Joined: May 2005
Posts: 36
Apple Valley, MN
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MNSVT Offline
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MNSVT
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Apple Valley, MN
I relocated my IMRC to the drivers side of the engine bay and have had no problems since. Get it away from the heat, that is what kills them.

1999 Contour SVT Toreador Red / Tan interior #2442 of 2760 Born August 2, 1999
Re: IMRC Failure caused by NVH
#1432423 11/09/05 05:17 PM
Joined: Nov 2000
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Thornhill, Ontario
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timeless420_dup1 Offline OP
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Originally posted by MNSVT:
I relocated my IMRC to the drivers side of the engine bay and have had no problems since. Get it away from the heat, that is what kills them.



Do you have any pics or can you describe what you did to allow the relocation?

Thanks

Then: 99 Silver Frost SVT #1919 237hp/219tq All Motor Now: 06 White STI Parts 4 sale
Re: IMRC Failure caused by NVH
#1432424 11/09/05 05:49 PM
Joined: Jun 2005
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Virginia, USA
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Tony2005 Offline
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Virginia, USA

"Always do the cheap and easy ones first." 1996 V6 ATX 96K miles
Re: IMRC Failure caused by NVH
#1432425 11/09/05 06:36 PM
Joined: Dec 2002
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Portland OR 'burbs
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PDXSVT Offline
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Portland OR 'burbs
So how many miles did you have on your IMRC? Mine started going before I had my mounts redone, so I can't blame that.

MSDS, SHO-shop Y, custom 2.5" catback; xcal2; 63mm TB, K&N 3530; Koni struts, Aussie bar; THaines forks, Quaife, SpecII, UR fly; DMD; Nima UD pullies; Stazi brakes; f&r Pole120 mounts. Just a daily commuter car. Silver '98 SVT E0 #3159

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