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Vitara driveline vibration
http://auszookers.com/forum/viewtopic.php?f=5&t=46654		 Page 1 of 1
Author:  SierraDan [ Tue Jun 17, 2014 7:51 am ]
Post subject:  Vitara driveline vibration
My SWB Vit has an awesome driveline vibration.
It starts at 70 gets worse the faster I go.

I put a new transfer in on the weekend. Noticed the diff end uni was seized, changed it for a new repco brand uni.
Transfer end is recent, Toyo and never gave me issues.

40mm lift. I tried driveshaft spacer and ball joint spacer combos. No change.

Any other ideas? Reckon the uni could be a dud?
Author:  christover1 [ Tue Jun 17, 2014 7:54 am ]
Post subject:  Re: Vitara driveline vibration
tailshaft out of phase?
Author:  SierraDan [ Tue Jun 17, 2014 7:55 am ]
Post subject:  Re: Vitara driveline vibration
Out of phase in what way? 1 piece shaft.
Author:  Gwagensteve [ Tue Jun 17, 2014 8:08 am ]
Post subject:  Re: Vitara driveline vibration
Worse or better since the spacer? SWB vits are well known for vibrations with lift.

Steve.
Author:  johnmath [ Tue Jun 17, 2014 8:17 am ]
Post subject:  Re: Vitara driveline vibration
I have just discovered that the Toyo unis fitted to my Sierra need circlips on the inside of the yoke, whereas the original unis had circlips on the outside. Without the circlips on the inside, the crosses are not centred and that causes driveshaft vibration. In my case the garage didn't fit the circlips even though they were supplied with the replacement unis, but just put the original outer ones back in(!)
Author:  christover1 [ Tue Jun 17, 2014 8:17 am ]
Post subject:  Re: Vitara driveline vibration
SierraDan wrote:
Out of phase in what way? 1 piece shaft.

Sorry I should turn brain on before typing.

:oops:
Author:  Gwagensteve [ Tue Jun 17, 2014 8:30 am ]
Post subject:  Re: Vitara driveline vibration
johnmath wrote:
I have just discovered that the Toyo unis fitted to my Sierra need circlips on the inside of the yoke, whereas the original unis had circlips on the outside. Without the circlips on the inside, the crosses are not centred and that causes driveshaft vibration. In my case the garage didn't fit the circlips even though they were supplied with the replacement unis, but just put the original outer ones back in(!)


Woah there johnmath- you're talking about two different unis there. Internal circlip unis are for 1.0 sierras. Whilst you can fit 1.0 unis into a 1.3, you still have to use external clips- 1.3 yokes aren't machined to accept internal clips.

Steve.
Author:  SierraDan [ Tue Jun 17, 2014 8:36 am ]
Post subject:  Re: Vitara driveline vibration
No noticeable change with each and both spacers.

It drove fine on my trip yesterday till about 15-20mins of 100km/h. Then it started vibrating.
That's why I suspect the uni.

My Toyo ones have external clip and have had no issues.
Author:  DarkHorse [ Tue Jun 17, 2014 11:15 am ]
Post subject:  Re: Vitara driveline vibration
Uni the obvious suspect... how 'new' was the transfer? Replace any bearings or anything that might not have seated properly?
Author:  SierraDan [ Tue Jun 17, 2014 12:15 pm ]
Post subject:  Re: Vitara driveline vibration
It was a good condition used one.
The one I removed, the bearings are on the highway somewhere.
Author:  atari4x4 [ Tue Jun 17, 2014 12:18 pm ]
Post subject:  Re: Vitara driveline vibration
i bunged uni's in the blagon & somehow drugged one & was a bit average at speed, replaced it & it was fine.

whats the pinion angle like, can't be that bad seeing you're only running spacers?
Author:  SierraDan [ Tue Jun 17, 2014 12:25 pm ]
Post subject:  Re: Vitara driveline vibration
With one eye shut the yokes are best part parallel.

I have heard of dud unis
Author:  atari4x4 [ Tue Jun 17, 2014 12:31 pm ]
Post subject:  Re: Vitara driveline vibration
could well be a uni, didn't tweak the tail shaft on anything when out IFS wheeling?
Author:  SierraDan [ Tue Jun 17, 2014 1:01 pm ]
Post subject:  Re: Vitara driveline vibration
Nah. And it went from fine to new uni then vibes.
Author:  31zook [ Tue Jun 17, 2014 4:16 pm ]
Post subject:  Re: Vitara driveline vibration
Ive no idea on how you fitted the new uni's but if its done incorrectly you can crush a seal which means there is no wiggle movement, but it will slide up and down on ome of the UNIs axis's. Ive done it before and had similar issues.
Author:  SierraDan [ Tue Jun 17, 2014 5:36 pm ]
Post subject:  Re: Vitara driveline vibration
Nope.
Author:  johnmath [ Tue Jun 17, 2014 5:59 pm ]
Post subject:  Re: Vitara driveline vibration
Quote:
Woah there johnmath- you're talking about two different unis there. Internal circlip unis are for 1.0 sierras. Whilst you can fit 1.0 unis into a 1.3, you still have to use external clips- 1.3 yokes aren't machined to accept internal clips.

Steve.


In my unis there is 1mm of free play between the external clips and the bearing cups, which have grooves for internal clips. I don't know if the garage put in the wrong parts or what, but the unis they put into my yokes will take internal clips and that fixes the problem. I am just saying...
Author:  atari4x4 [ Tue Jun 17, 2014 6:12 pm ]
Post subject:  Re: Vitara driveline vibration
isn't this thread about vitara's? :?
Author:  SierraDan [ Tue Jun 17, 2014 6:29 pm ]
Post subject:  Re: Vitara driveline vibration
I bought two new unis. Put them in. Made it heaps better, still there.
Got my driveshaft spacer, refaced it, put it in made it a bit better.

Transfer is probably rooted too haha.
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