Metal grit in PAS Reservoir - Defender Source
Defender Source  

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


Reply
 
Thread Tools
  #1  
Old June 23rd, 2014, 05:56 AM
mech's Avatar
mech
Status: Offline
Its Me
1991 110 CSW
Member
 
Join Date: May 2014
Location: Oxfordshire
Posts: 29
Metal grit in PAS Reservoir

I've been getting my steering back in shape on my 1991 110 Tdi. I've replaced both steering shaft U-Joints, pitman arm, both tie rod ends and drag link end.

Its been aligned professionally, but I still had a little slop in the system and the truck wandered a little on the highway.

I replaced the PAS box last weekend and when I went to refill the system, I found a lot of metal residue in the bottom of the reservoir. Do you think this was from the box or more likely the pump?

I'm wondering if I should replace the pump.

As a side note, there is still a little (maybe half an inch) of play in the wheel and the steering still doesn't recenter very well. Is this typical?
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old June 23rd, 2014, 06:24 AM
NPT90's Avatar
NPT90
Status: Offline
JT
D90 óriginalé
Member
 
Join Date: Apr 2011
Location: DC/MD
Posts: 2,772
Registry
They make the return to center steering damper; terrafirma sells the kit, might help tighten up the wheel and the rtc
Reply With Quote
  #3  
Old June 23rd, 2014, 06:35 AM
mech's Avatar
mech
Status: Offline
Its Me
1991 110 CSW
Member
 
Join Date: May 2014
Location: Oxfordshire
Posts: 29
I have a new OEM steering damper in there too. Is the terrafirma stronger?
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old June 23rd, 2014, 07:47 AM
Uncle Douglas's Avatar
Uncle Douglas
Status: Offline
Doug Crowther
A defender in every driveway-motto
D-90 Source Vendor
 
Join Date: Dec 2007
Location: Gods Country- Central Virginia
Posts: 11,841
Registry
The steering boxes are worm gear designs. Thats were the wear occurs. There is a adjustment on top of the box where you can tighten the box the eliminate play as the worm gear wears. This is most liky where your metal has come from.
__________________
Good judgement comes from experience,experience comes from bad judgement.

Dividing Creek Imports
Worldwide Vehicle Shipment and Importation Service
Restoration & Modification work


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

410.693.1391


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #5  
Old June 23rd, 2014, 08:26 AM
o2batsea's Avatar
o2batsea
Status: Online
Bill Adams
66 109 sw 94 lwb
Member
 
Join Date: Jul 2009
Location: kensington md
Posts: 6,505
Registry
Wandering can be a number of things, from loose steering box to worn suspension bushings. I'm not surprised that the problem didn't arise during the alignment as that service doesn't really address wrongness in the suspension. Rather it just makes the best of what can be made best if that makes sense. Really you need to get it up on a lift and start wiggling stuff. Worn trailing arm and front raduis arm bushings, wheel bearings, swivel pins, tie rod ends, shock absorber mounts, steering shaft u-joints/rag joints, all that stuff. Let's hope it's just a steering box issue.
As for the metal, if you are finding swarf in the reservoir that means it is all throughout the steering system. Whether it is a big deal or not I couldn't say but it is of concern. Perhaps a flush of the steering plumbing and then run it a bit to see if it returns.
__________________
Bill Adams

1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
1968 2A 88

All my troubles are Rover
Reply With Quote
  #6  
Old June 23rd, 2014, 09:31 AM
Uncle Douglas's Avatar
Uncle Douglas
Status: Offline
Doug Crowther
A defender in every driveway-motto
D-90 Source Vendor
 
Join Date: Dec 2007
Location: Gods Country- Central Virginia
Posts: 11,841
Registry
Quote:
Originally Posted by o2batsea View Post
Wandering can be a number of things, from loose steering box to worn suspension bushings. I'm not surprised that the problem didn't arise during the alignment as that service doesn't really address wrongness in the suspension. Rather it just makes the best of what can be made best if that makes sense. Really you need to get it up on a lift and start wiggling stuff. Worn trailing arm and front raduis arm bushings, wheel bearings, swivel pins, tie rod ends, shock absorber mounts, steering shaft u-joints/rag joints, all that stuff. Let's hope it's just a steering box issue.
As for the metal, if you are finding swarf in the reservoir that means it is all throughout the steering system. Whether it is a big deal or not I couldn't say but it is of concern. Perhaps a flush of the steering plumbing and then run it a bit to see if it returns.
The worst handling defender I have ever driven had brand new pro comp shocks. You constantly had to see saw the steering wheel just to keep it in the road. Switched the procomps out to bilsteins and it drove like a brand new truck- not that I have ever driven a brand new defender.
__________________
Good judgement comes from experience,experience comes from bad judgement.

Dividing Creek Imports
Worldwide Vehicle Shipment and Importation Service
Restoration & Modification work


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

410.693.1391


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #7  
Old June 23rd, 2014, 12:33 PM
sonoronos's Avatar
sonoronos
Status: Online
Ed
None
Member
 
Join Date: May 2010
Location: Arlington, VA
Posts: 5,543
Registry
Mikeslandrover has an old post detailing how to correctly align the steering box. The tightest steering only occurs at the center of the steering boxes travel. Play increases the further you get from the center. If you do not properly set the center of the steering box to the straight-ahead position of the front wheels, then there will be play you cannot remove from the steering system.

Also check swivel ball tension and drop arm ball joint play.
Reply With Quote
  #8  
Old June 23rd, 2014, 02:50 PM
mech's Avatar
mech
Status: Offline
Its Me
1991 110 CSW
Member
 
Join Date: May 2014
Location: Oxfordshire
Posts: 29
all good suggestions. I've already been through most of them to no avail. I have been looking for an excuse to put some bilsteins on though.

B4's? or B6's?
Reply With Quote
  #9  
Old June 23rd, 2014, 02:58 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 9,249
Registry
Is it lifted? Castor is what makes the steering self center. A lift reduces castor.

as far as play goes, beyond the things you have done, check panhard rod bushings. Check adjustment of steering box. Check swivel preload.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
  #10  
Old June 23rd, 2014, 03:04 PM
mech's Avatar
mech
Status: Offline
Its Me
1991 110 CSW
Member
 
Join Date: May 2014
Location: Oxfordshire
Posts: 29
Nope, not lifted. Panhard rod bushings are ok. Steering box is brand new.

The swivels have pre-load?
Reply With Quote
  #11  
Old June 23rd, 2014, 03:07 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 9,249
Registry
The swivel bearings are preloaded. This ensures there is zero play and provides a source of damping in the steering. Having these bearings loose will cause an unended amount of problems.

Despite the "professional alignment", I would check it yourself. You only need a tape measurer...
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
PAS Reservoir Bracket Miller Wanted 4 December 5th, 2012 03:06 PM
True Grit- Opting Out of the 'Rug Rat Race' Bill Larson Misc. Chit-Chat 3 September 8th, 2012 07:54 PM
RHD PAS Steering Box kzack Wanted 3 May 6th, 2011 09:21 PM
Pas pump spec. CDNRover Defender Technical Discussions 0 April 23rd, 2011 01:33 PM
Wanted: PAS Bracket LHD 2.5na trybul Wanted 9 July 25th, 2009 09:12 AM


All times are GMT -5. The time now is 04:04 PM.


Copyright