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vibrations ! !

  • supergaz
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12 Feb 2012 21:31 - 12 Feb 2012 21:32 #33359 by supergaz
Re: vibrations ! ! was created by supergaz
Have you got 3 bushes per fixing? So that the bolts do not contact the chassis brackets? I think the older kits only came with 2 nylon bushes per fixing.
Last edit: 12 Feb 2012 21:32 by supergaz.

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12 Feb 2012 21:43 #33362 by mlines
Replied by mlines on topic Re: vibrations ! !
Are these low frequency vibrations or high frequency.

When it was my mounts I had a high frequency vibration that I could feel in my feet and knees through the floor.

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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  • supergaz
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12 Feb 2012 21:48 #33363 by supergaz
Replied by supergaz on topic Re: vibrations ! !
I got my kit in January, but went for the earlier kit. I got 9 bushes in total, so everything is seperated by a bush on on each of the 3 fixings

from the bottom up it goes bush / chassis bracket / bush / Transfer box bracket / bush so that at no point does the bolt contact any brackets.

Probs worth you giving Rob a bell and trying to get 3 more bushes.

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  • g187eev
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13 Feb 2012 02:29 #33372 by g187eev
Replied by g187eev on topic Re: vibrations ! !
Hi

There should be next to no vibration at all... Our old bush kits were a 3 part bush, but now they are two but a larger bush, still works in exactly the same way tho...

The most common cause of vibration is that the props are not aligned perfectly... it is worth double & TREBLE checking them, we've all done it, get a straight edge and hold it down the prop to be sure.

What donor props have you used? and do you have sufficient free travel on the slip yokes? (they are not fully compressed) there should be at least 30mm of free inward movement at stand still.

RB
ORA

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  • darthloachie
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13 Feb 2012 09:36 - 13 Feb 2012 09:37 #33384 by darthloachie
Replied by darthloachie on topic Re: vibrations ! !
also check the UJ's for movement and that they are well greased, and that there is not lateral play in the splines - we had a front one that had and it vibrated like mad once you got above 25mph - you couldnt tell off the jimny, only when it was mounted on the jimny and you gave the prop a shake by the splines and you could see it moving

one of the downsides of a big lift
Last edit: 13 Feb 2012 09:37 by darthloachie.

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  • darthloachie
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13 Feb 2012 16:00 #33409 by darthloachie
Replied by darthloachie on topic Re: vibrations ! !
you will get a small amount of movement in the transfer box as it is rubber mounted but any more and check the tightness of the bolts - dont overtighten as they fit into a threaded cavity in the casing and will need helicoiling if the threads are buggered
they are vunerable when offroading so I'd fit a guard as I've broken my mounts twice before I fitted one
easy to fit

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