Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Join the Defender Source Community Today

Reply
 
Thread Tools
  #1  
Old April 22nd, 2012, 04:50 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 10,468
Registry
ARB RD56 air leak

I'm curious if anyone has had the same symptoms and agrees (or disagrees) with my diagnosis. The symptom was that when I engaged my (front) locker, air was getting into the axle housing and out the breather tube [1].

I pulled the 3rd member and hooked up the line to test, and I can tell it's not leaking at the bulkhead fitting, but hear air coming out of the center of the diff. Is it safe to assume it's the two o-rings where the air line connects to the locker and not something internal to the locker?

Oh and does this scoring on the seal housing look bad? I'm hoping not to need to replace this.

thanks,
charles
1. If on a steep incline this meant pumping oil up the line too which then drips onto your cats and starts a small engine fire. Not good.
Attached Thumbnails
Click image for larger version

Name:	IMG_1025.jpg
Views:	54
Size:	61.5 KB
ID:	50663   Click image for larger version

Name:	IMG_1026.jpg
Views:	53
Size:	72.8 KB
ID:	50664  

__________________

__________________
Quote:
Originally Posted by pendy
I'm here for the D's
Reply With Quote
  #2  
Old April 22nd, 2012, 05:02 PM
dave_lucas
Status: Offline
Dave Lucas
None
Member
 
Join Date: Sep 2003
Location: CO USA
Posts: 2,685
Had a newly installed ARB pumping 90wt out of the diff and it turned out that one of the O rings got pinched so sounds like you are on the right track.

Do not know about the other part of your question
__________________

__________________
Reply With Quote
  #3  
Old April 23rd, 2012, 09:59 AM
JSBriggs's Avatar
JSBriggs
Status: Offline
Jeff Briggs
Antarctic Blue Super Sports Wagon
Member
 
Join Date: Nov 2003
Location: Auburn CA
Posts: 8,819
Registry
I assume its the Orings. You could PM Tech Tim on pirate he works at ARB and could verify. http://www.pirate4x4.com/forum/member.php?u=19067

Cool scar BTW.

-Jeff
__________________
Reply With Quote
  #4  
Old April 23rd, 2012, 10:37 AM
sonoronos
Status: Offline
Ed
None
Member
 
Join Date: May 2010
Location: Arlington, VA
Posts: 2,599
Woah, I've never noticed that scar before...what's the story with that one?
__________________
yolo...yoloswag...
Reply With Quote
  #5  
Old April 23rd, 2012, 07:37 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 10,468
Registry
Quote:
Originally Posted by JSBriggs View Post
I assume its the Orings. You could PM Tech Tim on pirate he works at ARB and could verify. http://www.pirate4x4.com/forum/member.php?u=19067

Cool scar BTW.

-Jeff
Thanks. I did email him and he replied with a good suggestion of spinning it while testing, but I had already called ARB tech support and re-tested before he replied. ARB's suggestion was to use soapy water which I'm not sure why I didn't think of! As luck would have it, the inner "u-ring" seal is the one leaking. This involves opening her up and replacing one-time use bolts and washer tabs, so I put in an order for 2 sets of everything (including o-rings to be safe) so I have a spare kit.

What's odd is that this is supposedly a rare failure and usually caused by low oil or overheating, which I am quite sure neither has been an issue for me.

Quote:
Originally Posted by sonoronos View Post
Woah, I've never noticed that scar before...what's the story with that one?
Super secret Canadian Land Rover Society membership brand. I'd have to kill you (or make you a member) if I told you.
__________________
Quote:
Originally Posted by pendy
I'm here for the D's
Reply With Quote
  #6  
Old May 3rd, 2012, 09:40 AM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 10,468
Registry
Well I found my air leak. I wish I had dismantled it before ordering parts and waiting for them. I'm not happy about this as this can only be due to it not being assembled properly during manufacturing (it was brand new when installed).

Click image for larger version

Name:	IMG_1100.jpg
Views:	40
Size:	102.5 KB
ID:	51050 Click image for larger version

Name:	IMG_1103.jpg
Views:	37
Size:	96.8 KB
ID:	51051

This is a thrust washer from one of the pinion bearings. There is no way this was ever installed on the cross shaft. It worked it's way out to the inner seal and jammed between the housing and the seal and piston.
__________________
Quote:
Originally Posted by pendy
I'm here for the D's
Reply With Quote
  #7  
Old May 3rd, 2012, 10:55 AM
jefhuf's Avatar
jefhuf
Status: Offline
Jeff Huff
'94 D90 ST #655
D-90 Source Vendor
 
Join Date: Mar 2010
Location: Haymarket, VA
Posts: 1,541
Registry
I will be interested to see what ARB says and how well they stand behind their product!
__________________
Reply With Quote
  #8  
Old May 3rd, 2012, 11:00 AM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 10,468
Registry
As am I. I dropped them an email with pictures and will hopefully be able to make time to call this afternoon.
__________________
Quote:
Originally Posted by pendy
I'm here for the D's
Reply With Quote
  #9  
Old May 3rd, 2012, 11:19 AM
rijosho's Avatar
rijosho
Status: Offline
Joshua
1995 Black ST - Rhinolined edition
Research Assistant/Eagle Eyes
 
Join Date: Apr 2009
Location: NYC
Posts: 12,838
Registry
don't forget to tell them you're a moderator of an international LR forum - that may help you get some results.
__________________
Quote:
Originally Posted by bjf View Post
I am talking purely from an aesthetics standpoint.
Reply With Quote
  #10  
Old May 3rd, 2012, 12:01 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 10,468
Registry
Ugh somehow I doubt it. They are already asking questions to try determine if it's been worked on before, and if I was the original purchaser. Sucks that I bought them from someone else (although new) and he is no longer with us to help me...

http://www.defendersource.com/forum/...rb+rd56+locker
__________________
Quote:
Originally Posted by pendy
I'm here for the D's
Reply With Quote
  #11  
Old May 3rd, 2012, 01:42 PM
cgalpin's Avatar
cgalpin
Status: Offline
Charles Galpin
'94 D90 ST, '63 SeriesIIA
Site Team
 
Join Date: Jan 2004
Location: South Riding, VA
Posts: 10,468
Registry
Quote:
Originally Posted by jefhuf View Post
I will be interested to see what ARB says and how well they stand behind their product
They get an A+ so far. I explained the history and that I am not comfortable repairing it myself - that I'd prefer they go over it and make sure nothing else is damaged and they said no problem. They are even going to let me return and refund me for the seals and o-rings I bought since they are apparently older ones too.

I believe it's just going to cost me one way shipping and some bolts/nuts I have already bought for spares (although I shouldn't need them unless I get another rare internal failure), so nothing to complain about there.
__________________

__________________
Quote:
Originally Posted by pendy
I'm here for the D's
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
International HS2.8L Michael Defender Technical Discussions 447 January 7th, 2010 12:25 PM
Info needed on Arb air locker. rustydefender Defender Technical Discussions 5 January 9th, 2005 03:46 PM
CO2, ARB on board air! TwisteD90 For Sale - Parts 4 June 16th, 2004 10:43 PM
ARB vs. Detroit's souza Defender Technical Discussions 34 February 7th, 2004 01:16 AM
ARB air lockers install mhansen Defender Technical Discussions 1 December 29th, 2003 11:38 AM

» Newly Listed on eBay

All times are GMT -5. The time now is 05:32 AM.


Copyright