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Author Topic: Polybushing  (Read 2590 times)

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laney101

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Polybushing
« on: 07 April 2017, 13:07:12 »

Anyone replaced front top mounts with poly ones.. if so how did you find them once fitted..
And also where did you purchase from..

Second anyone replaced rear beam bushes with poly of a monaro?? If so any downsides were they noisy or ok ?? And again where did you purchase from
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frostbite

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Re: Polybushing
« Reply #1 on: 07 April 2017, 13:48:22 »

I had poly bushes on my v70, no vibration on idle but when driving all vibration are tranfered to the cabin as noise, sounds good if you dont want to put a cone filter on for noise

Rear bushes could possibly have noise from the diff
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Doctor Gollum

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Re: Polybushing
« Reply #2 on: 07 April 2017, 13:49:00 »

Top mounts... Pedders Heavy duty
Rear Subframe... Pedders Monaro poly

Both from Monkfish.

If you're worried about NVH issues, then you won't appreciate the benefits :-X
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Sir Tigger QC

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Re: Polybushing
« Reply #3 on: 07 April 2017, 19:34:25 »

Just don't poly bush the rear wishbone mount.  ::) 

Isn't that right Al?  :o  :P  ;D
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Doctor Gollum

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Re: Polybushing
« Reply #4 on: 07 April 2017, 19:37:24 »

Just don't poly bush the rear wishbone mount.  ::) 

Isn't that right Al?  :o  :P  ;D
Indeedy, hence my response earlier on a similar post ;)
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laney101

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Re: Polybushing
« Reply #5 on: 07 April 2017, 21:32:26 »

You can fit poly and not affect nah I have done so on several vehicles... but certain bushes can affect it hence asking on these particular ones.. cheers shall give monkfish a call
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Vega

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Re: Polybushing
« Reply #6 on: 08 April 2017, 14:08:59 »

Just don't poly bush the rear wishbone mount.  ::) 

Why not?
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Doctor Gollum

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Re: Polybushing
« Reply #7 on: 08 April 2017, 14:48:51 »

Just don't poly bush the rear wishbone mount.  ::) 

Why not?
Because this...




... will happen.

In my case cresting a slight rise on a fast A road at around 75mph. With no warning.

As there was a suspicion that this could happen, I checked the arms weekly. They had infact been inspected only two days before.

So there you have it kids, just say no. ;)
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Vega

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Re: Polybushing
« Reply #8 on: 08 April 2017, 18:54:18 »

What kind of rear poly did you use.
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Doctor Gollum

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Re: Polybushing
« Reply #9 on: 08 April 2017, 19:12:04 »

Powerflex black sierra tca ones... physically an exact fit.
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Nick W

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Re: Polybushing
« Reply #10 on: 08 April 2017, 19:40:29 »

Powerflex black sierra tca ones... physically an exact fit.


But as you found out, they're intended to rotate around the axis like the Omega front bush does. So you transfer the flexing action that is normally accommodated by the ball and socket in the correct bush, into a part of the wishbone that isn't designed for it. Failure is then just a matter of time.
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Doctor Gollum

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Re: Polybushing
« Reply #11 on: 08 April 2017, 19:54:03 »

Agreed, although it isn't really a ball and socket... there's a vaguely spherical centre to the bush which is entirely bonded to the rubber bushing... the movement comes from the flex of the rubber rather than the shape of the sleeve :y
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mandula

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Re: Polybushing
« Reply #12 on: 19 September 2017, 11:39:12 »

Fitted these year ago. Just checked wishbones, no defects found.

Didn't really noticed or even wanted any superior benefits, only longer life time for that bushing too. And now it is easier to replace if needed.
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Muroman

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Re: Polybushing
« Reply #13 on: 21 September 2017, 09:10:56 »

Just don't poly bush the rear wishbone mount.  ::) 

Why not?
Because this...




... will happen.

In my case cresting a slight rise on a fast A road at around 75mph. With no warning.

As there was a suspicion that this could happen, I checked the arms weekly. They had infact been inspected only two days before.

So there you have it kids, just say no. ;)

Can you provide these pictures?
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Doctor Gollum

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