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ashtrans
Site Sponsor

Member Since: 08 Nov 2008
Location: Harpenden
Posts: 255

mhasting2004 wrote:
Hi ashtrans

Could you explain to us that aren't experts in diffs what it is that is really bad in the contact pattern shown? I'm only a 10 minute google search expert and from that it looks that the contact is a bit high on the tooth but well centered. Or is it that it seems to be such a small contact area?

I'm about to get a new rear diff put in this week and I am wondering is it common practice to blue up a gear prior to instalation to check it, or do most dealers Ass-U-Me they are right from factory?

Cheers

Mark

Hi,

yes the contact is too high, seen by the sharp line at the tip of the tooth, this will focus the load here and is likly to cause noise,

dealers don't blue up gears, they take them out the box and fit them on the car. The guy on assembly at the factory should be checking this contact patch but this one wasn't checked very well,

for more contact patch info have a look at page 14,15 and 16 here,

http://www.ringpinion.com/Content/HowTo/Te...ctions.pdf Dave

19th May 2009 9:32pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7706

2011 Defender 110 Puma 2.4 USW Stornoway Grey

Well 8th May i started the post and i still dont have the 110 back!!!!

less than ideal

to be fair they have sorted a nice hire car but thats not what i want and a month (almost) to get a diff

Dave - dont suppose you have any 070s in yet do you? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

2nd Jun 2009 10:29am

ashtrans
Site Sponsor

Member Since: 08 Nov 2008
Location: Harpenden
Posts: 255

jst wrote:
Well 8th May i started the post and i still dont have the 110 back!!!!

less than ideal

to be fair they have sorted a nice hire car but thats not what i want and a month (almost) to get a diff

Dave - dont suppose you have any 070s in yet do you?

sorry no new, just rebuilt,

a month wait for a diff, thats poor, Dave

2nd Jun 2009 8:29pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7706

well its a month today and still dont have it!

if you have rebuilt i may well suggest that though Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

3rd Jun 2009 9:08am

AndrewS

Member Since: 10 Apr 2007
Location: Hereford
Posts: 3707

2013 Defender 130 Puma 2.2 SW Rimini Red

Guess what happened when we were driving back from Chester on Thursday.

Pulled up at a set of lights and heard the clunk clunk clunk noise. Rear diff again I think this is the 6th

7th Jun 2009 10:56am

mse

Member Since: 06 Apr 2008
Location: UK
Posts: 5024

2016 Defender 110 Puma 2.2 XS CSW Scotia Grey

AndrewS wrote:
Guess what happened when we were driving back from Chester on Thursday.

Pulled up at a set of lights and heard the clunk clunk clunk noise. Rear diff again I think this is the 6th

Good effort (not)

Is there a case for them to pay for upgraded components now...surely it must be cheaper for them Mike

7th Jun 2009 11:04am

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7706

well its cost LR UK over £1650 for the hire vehicle i have - and thats so far, still not had it back although i hear one arrived on Fri - new inlieu. would rather have a recon one from Dave! Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

8th Jun 2009 9:45am

RgrBox

Member Since: 04 Jun 2009
Location: St-Cergue, Switzerland
Posts: 111

2008 Defender 110 Puma 2.4 CSW Bonatti Grey

Damn.. sorry to hear all fo this bad news.. this stuff makes me worry.. I haven't heard any strange noise fromt eh rear or the front. And I drive up and down a mountain every day..

One good thing about this thread, and that is I'm learnign a lot fo stuff. We need a section just for this kind of stuff. Example, HOW TO Secton..

Would help me a lot.

Thanks,

RB 2008 110 2.4 tdci csw
Landrovers of Switzerland Club member

8th Jun 2009 4:51pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7706

got it back this pm, it made it the 10 miles from the dealer! time will tell, RAC/LRA card is poised Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

8th Jun 2009 8:06pm

TJ101

Member Since: 30 May 2007
Location: Taunton Somerset
Posts: 3747

2015 Defender 110 Puma 2.2 XS CSW Montalcino Red

jst wrote:
RAC/LRA card is poised

Won't need that,, park it up in the garage, with the other one, gives the spider some more room

California F1, 75th 110 "Kermit", 50th Ann V8, 90 V8 Hybrid, 55 Series 1

Main Brian James Trailer Dealer for South West UK

8th Jun 2009 8:11pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7706

TJ101 wrote:
jst wrote:
RAC/LRA card is poised

Won't need that,, park it up in the garage, with the other one, gives the spider some more room

and when was the last time your challenge truck was out?????

anyway its been parked up at home for a few hours now and its still not broken (that i know of) probably leaked though! Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

8th Jun 2009 9:00pm

TJ101

Member Since: 30 May 2007
Location: Taunton Somerset
Posts: 3747

jst wrote:
TJ101 wrote:
jst wrote:
RAC/LRA card is poised

Won't need that,, park it up in the garage, with the other one, gives the spider some more room

and when was the last time your challenge truck was out?????

!

Fair point !!!! Poor thing won't know whats hit it, with Manby at the end of the month !!!!

Beadlockers all sorted thought

California F1, 75th 110 "Kermit", 50th Ann V8, 90 V8 Hybrid, 55 Series 1

Main Brian James Trailer Dealer for South West UK

8th Jun 2009 9:03pm

Happyoldgit

Member Since: 14 Sep 2007
Location: Norfolk
Posts: 3471

2015 Defender 110 Puma 2.2 USW Corris Grey

Hmmm - my rear diff has started to hiss on over run and there has been a definite clonk on taking up and backing off the power for a few months. I mentioned the clonk to the main dealer when they had the vehicle back a while back and they said it was the rear brake pads moving in the callipers. I've since checked them myself and there is no more or less play than there was in any of my pre Puma motors.

23rd Jun 2009 5:26pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7706

if it was the pads you would get the clonk on pushing the brake pedal not on taking up drive.

clonk could also be the trailing arm bushes mine have delaminated at 4k miles!!!

rear diff possible if its overrun noise - is it leaking too? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

23rd Jun 2009 6:43pm

Happyoldgit

Member Since: 14 Sep 2007
Location: Norfolk
Posts: 3471

You're right about the pads. The pinion seal sprang a leak about 18 months ago but was obviously replaced under warranty. It's due a service so I'll be having words about the issue when it goes in, I'll also be debating if I will be keeping this one, chopping it in for new or taking another path.

23rd Jun 2009 8:05pm

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