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Who's running poly mount inserts?
by
ToddA1
on 25 Nov, 2009 20:07
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I'll be replacing the broken p/s engine mount on my 82 Rabbit. AutohausAz didn't stock the HDs, just the standard Meyle mount.
Some have said to fill them with epoxy to make them last longer and I've heard a few people say to put a poly insert in. Who's done any of the above and what are your opinions? As much of a pain as it's going to be to swap the mount, I only want to do it once.
-Todd
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#1
by
8v-of-fury
on 25 Nov, 2009 20:39
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I think i read somewhere that poly mounts on the side will shake your car to smithereens... because those two hold most of the weight of the engine i assume?... or it was the other way...
at any rate near solid mounts on a diesel are probably something you want to steer clear of.
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#2
by
maxfax
on 25 Nov, 2009 21:59
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Poly mounts are MISERABLE on the left and right side mounts.. The best combo I've found is stock mounts in those two, and poly on the front and rear mount.. It isn;t unbearably rattly, yet because the front and rear mounts are firmer the engine doesn;t rock around in there as much and keeps the left and right mounts lasting longer...
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#3
by
ToddA1
on 26 Nov, 2009 09:01
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I've always heard the same about the side mounts, but was a bit curious when I've heard others state otherwise.
I've always run the front poly, but have heard the rear poly block will just break into chunks and disintegrate.
-Todd
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#4
by
maxfax
on 26 Nov, 2009 15:20
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Polys would probably be fine on a gasser.. Maybe on a MK2 and up...
I have the poly rear mount, and so far so good, but I'm only running an N/A too..
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#5
by
ToddA1
on 26 Nov, 2009 16:06
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Approximately how long, and what mileage is on the rear?
-Todd
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#6
by
FineFrank
on 26 Nov, 2009 18:09
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Buy a heavy duty mount from Techtonics. I have 60k on mine and it's still fine.
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#7
by
maxfax
on 26 Nov, 2009 20:59
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Approximately how long, and what mileage is on the rear?
-Todd
Probably about 60K miles.. I put it in there about a year and a half ago...
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#8
by
mystery3
on 26 Nov, 2009 21:44
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I have the prothane passenger and driver side mounts and the heavy-duty front and rear. It has a good amount of vibration at idle, with the rpms up a bit it's not bad. I had all four and it was a little bit too much.
What other vehicle have you driven with poly/delrin/solid motor and/or transmission mounts?
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#9
by
ToddA1
on 27 Nov, 2009 11:09
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Only gas Rabbits. The fronts and rears were poly and the sides were Scirocco 16v mounts; much heavier to deal with the extra weight.
I wonder if I trim off everything on the insert (other than the bottom 2 prongs), if it'll be tolerable. Otherwise I'll probably just run the standard that I bought and do the front & rear in poly.
-Todd
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#10
by
burn_your_money
on 27 Nov, 2009 14:31
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I've been in a mk4 TDI (which uses a similar mouting style to a mk1) and he had full poly. It was honestly like sitting in one of those massaging chairs. Once the RPMs got up a bit it smoothed right out though. I don't think any CD player would have any chance of operating in that car.
In my mom's mk1 Jetta I put in new motor stock motor mounts and it's just fine. 1.6 NA w/ auto. It probably has less then 2000kms on it
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#11
by
RabbitJockey
on 27 Nov, 2009 14:40
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i tried the rear mount on my jetta, the stiffness was nice, but the vibrations were insane, but i've read u can get away with polly everything but the rear with out it being too crazy. but i kind of doubt that.
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#12
by
ToddA1
on 27 Nov, 2009 16:23
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I think I'll just stick with the standard stuff on the sides, and see how that is. I have a used poly rear, so I'll toss that on just to see what it's like, next.
-Todd