Topic: Vibration (Read 4037 times)

Guy90 · « **on:** November 27, 2006, 00:09:19 »

Still trying to track down the vibration on the 90. It's worse at around 35mph but always there a bit whatever speed I'm doing.

Having a look underneath (and hearing some clonking on taking up drive, there appears to be some play in the either the front diff or the transfer box. I can turn the propshaft about an 1/8th of a turn with the transfer box clunking away. There is about 2mm of play on the flange of the transfer box.

Likely to be the cause? Is this amount of play too much?

Thanks,

littlepow · « **Reply #1 on:** November 27, 2006, 12:35:16 »

Have you checked your UJ's?

ferret · « **Reply #2 on:** November 27, 2006, 13:01:49 »

The play is normal. Check uj's first. and prop shaft slideing joints for play. If the vibration started after a lift or castor correction being carried out the only cure really is to fit a double cardan prop shaft with a discovery 2 output flange on the transfer box at the front.

Guy90 · « **Reply #3 on:** November 27, 2006, 13:21:51 »

Just fitted new UJs so they should be fine. The front prop is brand new (it was vibrating before that).

It has been lifted and castor corrected by the previous owner. Vibration has only started in the last couple of weeks.

I feels like it is the whole car vibrating though either transmission or though the wheels. It's always there but worse at 35mph ish.

Checked everything from bearings, wheel balancing to gearbox mounts but can't track it down

ChrisW · « **Reply #4 on:** November 27, 2006, 13:24:25 »

Have you tried it without the props on? (One at a time obviously :roll: )

Guy90 · « **Reply #5 on:** November 27, 2006, 14:19:25 »

Quote from: "ChrisW"

Have you tried it without the props on? (One at a time obviously :roll: )

Chris,

Good idea :D . I'll try that next.

hingmy · « **Reply #6 on:** December 04, 2006, 13:05:27 »

what sort of vibration? Mechanical clunky knocky type or oh poo let go of the steering wheel type. If erring towards the latter look at the panhard rod bushes and bolts and the front radius arm bushes. Last itme the panhard rod decided to let go it was unmanageable at about the speed you mention.

Eeyore · « **Reply #7 on:** December 04, 2006, 14:18:38 »

If there's paly in the transfer box output bearings (you mentioned play at the flange, that'll create some sinister vibrations. So it could be worth getting them checkeda little more thoroughly (I'm having exactly that problem at the moment, myself)

Cheers
8)
Eeyore

Guy90 · « **Reply #8 on:** December 04, 2006, 14:29:17 »

There is about 2mm play at the transfer box flange. There is also about 4mm play in the driver side swivel.

Front radius arms were fairly recently polybushed. must admit I haven't looked at the panhard rod.

The vibration is not so violent I can't take my hands off the steering wheel but is annoying and the 90 is unplesant to drive because of it.

The vibration starts at around 10mph and gets worse as the speed increases. It is at it's worse at around 30mph to 35mph. It then begins to subsid as the speed increases and has pretty much gone by the time I hit 50mph.

Cruising at 65mph and you can't feel anything.

Lee_D · « **Reply #9 on:** December 04, 2006, 14:45:46 »

Swap your tyres front to back, if only to eliminate them.

I had similar on the 101 but that was the Pinion bearings, the front diff on a 101 is a Salisbury so it was a [!Expletive Deleted!] to do.

Panhard rod bushes are on my list of things I'd be exploring first..and also getting rid of the play in the swivel... all this play adds up.

Lee

Eeyore · « **Reply #10 on:** December 04, 2006, 15:17:20 »

Sounds like that front swivel will need looking at too. Doesn't create much rumble or vibration, but they can escalate quite rapidly. If it's the swivel bearings / railko bushes, they're not expensive to replace, but it's worth checking the swivel for pitting whilst your at it (which is the expensive bit to replace, sadly). Put aside a day for the job. It shouldn't take that long but why rush yourself.

Poor old Wolfie had to do 5 in a week earlier this year!

it might not solve the rumble, but it'll improve the feel of the steering!

Keep us posted as to progress / findings!

cheers
8)
Eeyore

Guy90 · « **Reply #11 on:** December 04, 2006, 15:56:02 »

Quote from: "Eeyore"

Sounds like that front swivel will need looking at too. Doesn't create much rumble or vibration, but they can escalate quite rapidly. If it's the swivel bearings / railko bushes, they're not expensive to replace, but it's worth checking the swivel for pitting whilst your at it (which is the expensive bit to replace, sadly). Put aside a day for the job. It shouldn't take that long but why rush yourself.

Poor old Wolfie had to do 5 in a week earlier this year!

it might not solve the rumble, but it'll improve the feel of the steering!

Keep us posted as to progress / findings!

cheers
8)
Eeyore

Nic,

It's the bearings. The swivels themselves are in perfect condition. All the bits are arriving today (apart from the seal which I forgot to order

). Hopefully will get the job done one day this week. Depends on the weather!!

Eeyore · « **Reply #12 on:** December 04, 2006, 18:05:12 »

Oops, my mistake!

Should be an easier then! Weather dependent, like you say!

cheers
8)
Eeyore

Xtremeteam · « **Reply #13 on:** December 04, 2006, 19:43:09 »

so it wasnt the wheel bearings guy?

Door open

Running...

Gone

Guy90 · « **Reply #14 on:** December 04, 2006, 20:59:57 »

Quote from: "Redlinemike"

so it wasnt the wheel bearings guy?

Door open

Running...

Gone

Nope :lol:

It wasn't panhard bushes either

Might be diff related I'm think now. The vibration is definately at the front. Did spot a power steering fluid leak while i was under there at the engine end. Hopefully, it's just worked loose. Going to wait for daylight.

hingmy · « **Reply #15 on:** December 06, 2006, 12:59:20 »

just a thought but if you are losing pas fluid - what stats the box and drop arm in?

Guy90 · « **Reply #16 on:** December 06, 2006, 13:50:16 »

Quote from: "hingmy"

just a thought but if you are losing pas fluid - what stats the box and drop arm in?

Steve,

They are OK. The clip on the pipe was loose. Leak fixed.

Still vibrating

Range Rover Blues · « **Reply #17 on:** December 06, 2006, 15:29:28 »

I've found poylbushed made the LSE worse, if there is any play elsewhere their stiffness really shows it up.

turtle · « **Reply #18 on:** December 06, 2006, 17:00:13 »

I've had simlar on the 90, turn out it was a CV going.

Have you check them Guy?

Guy90 · « **Reply #19 on:** December 06, 2006, 20:25:59 »

Quote from: "turtle"

I've had simlar on the 90, turn out it was a CV going.

Have you check them Guy?

Phil,

It did occur to me the other day it might be that or even halfshaft/driving member damage. Haven't had chance to check it yet.

Guy90 · « **Reply #20 on:** December 08, 2006, 23:06:14 »

It was the CV joint. Replaced it and the vibration has gone :D :D

Yes, it was cold outside 8)

davidlandy · « **Reply #21 on:** December 09, 2006, 09:22:39 »

well done Guy

did you manage to break anything in the process ?

Did you have to angle grind any components out of the way so as to get to the CV?

or was it all plain sailing?

Guy90 · « **Reply #22 on:** December 09, 2006, 19:05:28 »

Quote from: "davidlandy"

well done Guy

did you manage to break anything in the process ?

Did you have to angle grind any components out of the way so as to get to the CV?

or was it all plain sailing?

Minor brake mishap but all sorted now!

Grinder stayed in its case :shock: :shock:

davidlandy · « **Reply #23 on:** December 09, 2006, 20:48:46 »

lol - result!

Guy90 · « **Reply #24 on:** December 09, 2006, 21:32:28 »

Quote from: "davidlandy"

lol - result!

Yes and no!

Wheel bearing problem on the way back from day one of Santa's Challenge at Rockingham. Wheel bearing will not adjust properly and even with new bearings in there is still a lot of play in it. I'm thinking stub axle problem but no time to sort it tonight.

davidlandy · « **Reply #25 on:** December 09, 2006, 21:45:51 »

santa challenge ?

which sites is it at this year?

Guy90 · « **Reply #26 on:** December 09, 2006, 22:16:25 »

Quote from: "davidlandy"

santa challenge ?

which sites is it at this year?

We had Tixover and Cradle Rock today. Tomorrow is Yarwell and Whittlesey Brick :shock:

News:

AuthorTopic: Vibration (Read 4037 times)

littlepow

ChrisW

hingmy

hingmy