have i blown a diff ???

[chris_harvey]

hello all ! i was on my way to warrington to meet a few of the lads as we wear going to bala to do some greenlanes and i herd a noise from underneath like a metal clunk noise, the car was running fine tho  :do: so i tho rt ill go easy see if anythink els happens ther was nothing. we met got on our way and as i was going on and off the car started making a noise very much like a CV joint had gone like metal rubbing or knocking so we pulled over and had a look nothing was  obvious so i decided to scrap the trip and get bk home b4 any major damage was done , they all went to bala.

Ive had it up on a ramp with all 4 wheels of the deck , the CV joint/ big balls things   seem to be OK no knocking when i rotated the wheels . the front prop had alot of play in it i could move it very easily with my hands and the back one was solid . i started the car let the clutch out in first to find that only 1 of the front wheels was gettin drive to it ( only 1 was turning )

anyone have any idea what mite be at fault ????

thanks in advance .

[ChrisW70]

Does it drive on the road without diff lock?

If the front prop has play in it that usually points to a UJ gone?

With all wheels off the ground you will only get drive to one wheel - if you put in diff lock you will get drive to one front and one rear - power takes the line of least resistance.

[chris_harvey]

yes it drives on the road with out difflock i had it in high box and drove home normaly ?

[Disco Matt]

Is there play in the front prop with all four wheels on the ground? If so, that suggests prop UJs - you can usually see movement in them if you hold the yoke that bolts to the diff or gearbox and try wiggling the prop with your other hand.

When mine started going the symptoms included a rhythmic vibration when accelerating hard at around 60mph - if I booted it up a hill, for example.

[stretchy]

if all els seams fine I would look at wheel bearing or hand break pads rubing on the drum.
I have had a very dried out fubard wheel bearing that sounded like rubing clanging metle together and also had some lose pads rub on the drum that made a jingling sound that took me ages to fined. you normaly get a tiny tiny bit of play in flanges from t box and diff flange but if there is play in the ujs get is swaped asap as will only get worse even more so If you offroad as its under a greater angle when the suspension is working

stretchy

[stretchy]

also if you fined a SAFE way to stop the spining front wheel the drive should be diverted to the other side thus ruleing out a fubard diff or half shafts

[chris_harvey]

i am gonna check again when go into work but i seem to think ther is way to much play in the front prop tbh ! from what i felt and listend to i cant really hear much from the CV joints when was spinning the wheels . the noise it made immediately made me think a CV has gone as i had 1 go on a Clio i once had and i made the same noise just allot louder.

a little other question is their a certain type of grease to use if i want to grease the Cv's ? and do i need to oil the uj's on the props also ??

[Range Rover Blues]

If it's a D1 then the CV are running in oil, or one shot grease.  I use a Lucas hub oil because it's better than one-shot.

Propshafts should be "normal" grease or a decent water proof grease for automotive applications.  I use another Lucas oils product sometimes.

[wheels244]

My money is on a wheel bearing.

I had a similar experince whilst towing my bike to trackday at Donnington.
Metalic grinding noise, went away for 10 miles came back with a vengence on the M1 - I had to be recovered.
Did you feel the wheel to see it was warm ?
When I stripped it down, the bearing ( what was left of it ) was dry as a bone and inner race welded to stub axle - I got it off though  :dance:

[chris_harvey]

had to take the missus back to her house just now only 5 miles round trip . car didn't make a noise until right near my house got a rumble when slowing to i took it for about another mile and kept slowing down gradually to a stop and it was happening . i got out the car felt my side wheel hub cover it was cold felt the passanger side and it was warm , not boiling or even hot but was deffo warmer than my side

i am swaying to thinking it could be a bearing ??? i am also gona change the front prop shaft As thers loads play init can rotate it back and forth about a 1/4

[wizard]

Providing the prop u/js are ok you should be able to turn the front prop a bit, a 1/4 turn sounds about right.
Replace the wheel bearings (including the outer race)

wizard

[big tim]

I would use a decent make of wheel bearing chris. I think its timken that are decent ;)

[chris_harvey]

is ther a certain type of bearing ? reason i ask is that it says all about diff chassis numbers and stuff  ???

[chris_harvey]

i am going to do both front bearing but when i am looking to order them it say about chassis number on the site it says up to      JA032850    and JA032850

on my disco the number is JA030313 

which 1 do i get ???

[mark-d]

if its a 300tdi it is worth checking the rear prop donut, when my first one went it started making the noise when slowing down

[chris_harvey]

its a 200 .      what grease is best to buy to pack the bearings ???

[wheels244]

Lithium gease will be fine.

[chris_harvey]

Right got 1 done after work today took 2 hours total going to do the otherside 2moz after work. My cvjoint/big steering ball is leakin thin oil stuff ? Never dun it b4 I started the bearings :s any1 have any ideas ? Have I disturbed sumthink and the seals have gone?? I took the 2 bolts out that hold the brakes lines down and then I loomed and it was leaki g kinda fast ????