power steering pump noise - Defender Source
Defender Source  

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


Reply
 
Thread Tools
  #1  
Old October 27th, 2008, 12:08 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: 11,625
Registry
power steering pump noise

Before I go buy a replacement pump, I thought I'd see what you folks had to say about this.

My power steering pump (in a '94 D90 but is from a '94 Disco I with serpentine setup) started making a noise right before MAR. It's a pretty loud scream which goes away after a few minutes - not sure if it's because the fluid warms up or turning the wheel lock to lock helps it. I tried to bleed the system at the gearbox but saw no air and didn't seem to help. The system was working fine for a few months after swapping out the steering box.

I have the small black reservoir. Doug said it may have a filter on the bottom that could be clogged, but I haven't pulled it to verify yet.

Any ideas?

thanks,
charles
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old October 27th, 2008, 12:52 PM
Muscat
Status: Offline
Mark B
2002 90 wreck
Member
 
Join Date: Feb 2008
Location: Muscat, Oman
Posts: 62
Charles,

I just checked a couple of spare reservoirs that I have. Neither of them have filters at the fluid outlet. There should be a removable fine mesh filter in the filler neck.

Every power steering box that squealed on me was caused by low fluid levels - the noise disappeared after filling up and bleeding the system. IIRC, you can bleed the system by turning the steering wheel fully left and then fully right, followed by replenishing the reservoir to the correct level. The manual warns against holding the wheel against the stop for extended time (30s) while doing this, but I can't recall why just now. Something about overheating or over-pressurising the fluid.
__________________
Mark
__________________________________________________ _______________
1982 LHD RRC - gone. 1986 LHD 110 (300tdi auto) - gone. 1995 Disco 1 - still going. 1996 Disco 1 - scrapped. 2002 90SV build up (300tdi auto) - in progress...
Reply With Quote
  #3  
Old October 27th, 2008, 01:39 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: 11,625
Registry
Thanks Mark

Yes my reservoir has the removable one in the neck. The levels are fine and I did turn it lock to lock a few times before. I'll give it a few more tries though, thanks.

Oh, if it helps, the noise goes away at full lock.

charles
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old October 27th, 2008, 01:45 PM
evilfij's Avatar
evilfij
Status: Offline
evilfij
I have never seen a rover in person
Member
 
Join Date: Oct 2003
Location: on the internet
Posts: 14,688
I still think you are getting air in there somehow. Did you recheck all the connections?
__________________
*not legal advice*
Reply With Quote
  #5  
Old October 27th, 2008, 01:56 PM
MonLand
Status: Offline
Loic Fabro
95 D90 - 96 Disco -06 LR3
Member
 
Join Date: Oct 2003
Location: Herndon, VA - USA
Posts: 1,642
Registry
Quote:
Originally Posted by evilfij
I still think you are getting air in there somehow. Did you recheck all the connections?
Would it means that if the cap of the reservoir is removed and engine turned off, some fluid should drip out on that connection?
Is is possible that one of the hoses is kinked/plugged (somehow)?

Charles, do you have some spare (old?) pipes you could try to use?
__________________
Quote:
I have an ex MoD and an ex wife. The two no longer conflict with each other.
Quote:
it is not hoarding it is selective collecting
---
MonLand
1995 D90 NAS
1996 Discovery NAS
2006 LR3 NAS (hers, but comfy! :) )
Reply With Quote
  #6  
Old October 27th, 2008, 02:01 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: 11,625
Registry
Ron, wouldn't air getting in somewhere mean I'd have a leak somewhere too? I'll go double check a later this afternoon but I don't believe I have any leaks.

No other hoses to try, although it's on my todo list to rebuild them as a precautionary measure.

charles
Reply With Quote
  #7  
Old October 27th, 2008, 04:30 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: 11,625
Registry
I think Ron nailed. I checked while it was running and the low pressure line going into the pump was partially collapsed near the pump. I could squeeze the hose to change the collapsed side and hear what sounded like air sucking in as I did it. I'll replace the hose and report back.

thanks guys!
charles
Reply With Quote
  #8  
Old October 27th, 2008, 04:53 PM
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: 11,839
Registry
Playing with the 90 after spending 4 days away from home with the 110....carefull you will end up single like me
__________________
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
  #9  
Old October 27th, 2008, 06:11 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: 11,625
Registry
LOL. It was just a quick peek.
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
Trouble changing power steering belt, 94 D-90 Hans Defender Technical Discussions 13 October 8th, 2009 01:05 PM
Power Steering Pump dimcon Defender Technical Discussions 11 April 9th, 2007 08:34 PM
Rats! Now my D90 won't start. No power to fuel pump jcasteel Defender Technical Discussions 8 March 15th, 2005 09:42 AM
D90 Power steering PUMP WhiteD90 Wanted 1 February 1st, 2005 12:09 PM
Vendor for Power Steering Pump Pulley wheel ? norros Defender Technical Discussions 0 January 19th, 2005 04:12 PM


All times are GMT -5. The time now is 05:30 PM.


Copyright