propshaft

[Mean Green]

I have been suffering bad vibrations from my 90 at about 50-60mph, they were not coming through tthe steering wheel. So after a post on here, I decided that it was coming from the front prop. I finally got round to pulling off the prop and taking it for a spin tonight.

Early indications suggest that the vibrations have gone.

So .. do i replace the propshaft or get it re balanced?

I have had a look and both UJ's look fine - there is no play in either.

What sort of money is likely to be in a prop rebalance?

[western]

on the main tube, is there any balance weights -- small rectangular steel plates about 1inch square, see if any have fallen off, normally spot welded in each corner, so should be fairly easy to tell if any are missing. no idea about costs in your area for prop balancing, have a look in the phone book under prop shafts or similar

[Les Henson]

Removing the prop doesn't mean that the prop is the problem - it has merely identified the location of the problem to the prop, front axle, or transfer case. You are just removing or changing the loading on these components.

Les.

[Mean Green]

Removing the prop doesn't mean that the prop is the problem - it has merely identified the location of the problem to the prop, front axle, or transfer case. You are just removing or changing the loading on these components.

Les.

Thanks Ralph & Les.

Les.. How can I check the other components that you mention?

[Les Henson]

By a process of elimination. Wheel bearings, swivel pin bearings, CV joints, play in the diff/transfer box flange, radius arm bushes (either end), shock absorber bushes, panhard rod bushes, collapsed springs, etc.

Les.

[Mean Green]

By a process of elimination. Wheel bearings, swivel pin bearings, CV joints, play in the diff/transfer box flange, radius arm bushes (either end), shock absorber bushes, panhard rod bushes, collapsed springs, etc.

Les.

Les,

I know the suspension component are all in good order. But what about Diff/transfer flanges..

I have not yet looked but I do not know what I am looking for / how to check them.

can you advise?

[western]

grab each flange & see if you can move it up/down & side to side, there should be hardly any movement.

[white90]

Spent to long sorting this

replaced diff

bushes

ujs

transfer box

wheels balanced

props

then fitted a Double carden prop

problem solved

if you have lifted the suspension

or fitted castor correction arms

save yourself the hassle and fit a DC prop

problem will go away

PS the Transfer box flange should and will have 4-5mm movement

this is perfectly fine as it has a roller not a taper bearing

http://forums.lr4x4.com/index.php?showtopic=77

[Mean Green]

Thanks for all the input.

Got word today from my local driveshaft specialist that the prop is done. There was play on the slider lining (I think thats what he called it) and that would be causing the vibration.

So got a new one ordered. Fingers crossed that it solves the problem.

Tony - I run standard suspension and it is all fairly new and red polybushes all round - thats why I was fairly certain it was not suspension related.

[white90]

I hope so as it is a pain to locate/fix vibration issues