Mud-club

Vehicle & Technical => Defender => Topic started by: Mark_Solesbury on May 16, 2009, 19:54:05

Title: Defender Front Diff - Whining Rumbing noise
Post by: Mark_Solesbury on May 16, 2009, 19:54:05

Hiya

I think ive got a whining / grumbling noise coming from my front diff

It only does it under load, not on overrun. I removed the front prop and the noise goes away.

How many bearings are there in the diff? 3?

Can you change the pinion one, without actually removing the diff? (I know i wont be able to change the bearing race without removing it)

Thanks,

Title: Re: Defender Front Diff - Whining Rumbing noise
Post by: scatt on May 16, 2009, 22:03:26

silly question, but have you checked your prop uj's?

Title: Re: Defender Front Diff - Whining Rumbing noise
Post by: topless matt on May 16, 2009, 23:37:15

If you want to change the pinion bearings (2 of) you will need to remove the diff and strip it down, not a hard job really.
Ive done it, just need to put it back together  :oops: :?

Title: Re: Defender Front Diff - Whining Rumbing noise
Post by: Mark_Solesbury on May 17, 2009, 18:06:59

Uj's are fine, CV's are fine, wheel bearings are fine.

Its definatly coming from the diff....

are there any pics of diffs anyone knows of that show where the bearings are, and what type?

Title: Re: Defender Front Diff - Whining Rumbing noise
Post by: Saffy on May 18, 2009, 10:14:53

4 pinion bearings
(http://www.mud-club.com/galleries/galleryimages/1242638018-3842-frontdiffbearings.gif)

Title: Re: Defender Front Diff - Whining Rumbing noise
Post by: Mark_Solesbury on May 18, 2009, 10:44:20

Right - from that picture I hope to be able to say that its only the ones on the input shaft that are screwed. If I turn a wheel by hand, and the other one spins the oposite way, its smooth.

If i turn the input shaft where the prop goes, its quite rough - and there is a bit of play there...

Ill know more tonight when I take it apart!