Discovery II Talk about the Land Rover Discovery II within.
Sponsored by:
Sponsored by:

Water Pump and Fan Clutch - My Turn

Old Nov 4, 2019 | 10:22 AM
  #11  
Best4x4's Avatar
Super Moderator
Joined: Apr 2015
Posts: 7,983
Likes: 2,497
From: Beaumont, TX
Default

If you can't get the old clutch to separate from the fan. Just get the Dorman 620-112 fan blade for 25.00. You should be able to get the 2991 fan clutch & fan blade for 75.00 locally.
 
Reply
Old Nov 4, 2019 | 02:03 PM
  #12  
mln01's Avatar
Thread Starter
|
Camel Trophy
Joined: Dec 2009
Posts: 3,883
Likes: 951
From: Charlotte
Default

Best, what do you do to remove water pump gaskets?
 
Reply
Old Nov 4, 2019 | 03:18 PM
  #13  
Best4x4's Avatar
Super Moderator
Joined: Apr 2015
Posts: 7,983
Likes: 2,497
From: Beaumont, TX
Default

I just use a razor blade. It takes a little time depending on the gasket, but It comes off eventually. I've used that spray in the past, and I had a wheel I used once as well, but I prefer the razor blade. Hold it at the right angle and the old gasket will flake off.
 
Reply
Old Nov 4, 2019 | 04:08 PM
  #14  
mln01's Avatar
Thread Starter
|
Camel Trophy
Joined: Dec 2009
Posts: 3,883
Likes: 951
From: Charlotte
Default

That's what I would have used had I not learned about the Roloc bristle disc. I think I used a razor blade when I helped a neighbor change the water pump on his DII a few years ago.

And another question --- given how much the fan clutch bolts are apparently tightened at the factory, how tightly do you torque them when installing a new fan clutch? I looked but didn't find a torque spec in the RAVE.

And BTW, no need here for drilling or cutting. The $2.17 6mm hex socket did the trick, with the help of a cheater bar on the ratchet handle. Even with that setup it took some bouncing on the cheater bar to crack them loose. I had my foot on the ring around the outside of the fan; I'll inspect it to be sure I didn't crack it in the process.
 

Last edited by mln01; Nov 4, 2019 at 05:29 PM.
Reply
Old Nov 6, 2019 | 09:52 PM
  #15  
mln01's Avatar
Thread Starter
|
Camel Trophy
Joined: Dec 2009
Posts: 3,883
Likes: 951
From: Charlotte
Default

Today's update.

I got everything put back together last night, and this evening I filtered the "old" coolant that I drained to change the pump through a towel and refilled the system. (I'd changed the coolant just two weeks before the water pump leak appeared so I reused it.) I took the truck for a short test drive a few minutes ago and all seems well.

Other than removing the old gasket the most difficult part of the job was removing the inlet hose. After 20+ years it was stuck pretty well to the pump inlet. No biggie, but a little frustrating.

I was delayed a couple days wrapping up the job because when I went to reinstall the belt I found it had an 8" split at one place in its length. That was surprising because the belt was only a little over 2 years old with only 13,500 miles on it. And the belt before that one lasted only 14 months and 7,600 miles. The one prior to that lasted 9 years and 61,000 miles. This may be a topic for a new thread, but I don't know why my truck has eaten the last two belts so quickly.

Here are a couple observations about bleeding the cooling system that I don't recall seeing before. Having now bled the system twice in the last four weeks they're fresh in my mind so I decided to share them here.

As I've said here several times I have never had anything but perfect results bleeding the system. I use the method set out in the RAVE. No problems. No "waterfall" noise. But there are a couple of things to note.
  • First, when I first drive the truck after having drained the system and refilling, the UltraGauge shows the temp climbing to over 200°F (and under 210°). But it stays there only a few seconds and then drops back to 188.6°. No biggie, and I don't know why it happens, but it can be alarming if you aren't expecting it.
  • Next, after my typical ~10-mile test drive following a refill and bleed, the coolant level in the reservoir is always down a little. Maybe a quart or so. Again, no biggie, but it could be alarming if you aren't expecting it.
 
Reply
Old Nov 14, 2019 | 10:41 PM
  #16  
Carlos Man's Avatar
Rock Crawling
Joined: Jul 2019
Posts: 261
Likes: 19
From: Dallas Texas
Default

Originally Posted by Best4x4
If you can't get the old clutch to separate from the fan. Just get the Dorman 620-112 fan blade for 25.00. You should be able to get the 2991 fan clutch & fan blade for 75.00 locally.
I found that fan on amazon, according to them it won’t fit... should I just over look that?

im really just wanting a back up fan and clutch.
 
Reply
Old Nov 14, 2019 | 11:25 PM
  #17  
Best4x4's Avatar
Super Moderator
Joined: Apr 2015
Posts: 7,983
Likes: 2,497
From: Beaumont, TX
Default

A lot of parts that are on our LR's cross reference to other makes and models from Fords, Chevy's, Hyundai's, KIA, BMW, and even Mitsubishi's.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BS50MGSXR
Discovery II
4
Aug 10, 2021 01:07 AM
dusty1
Discovery II
11
Aug 25, 2013 07:02 PM
Huey Lamb
Discovery I
10
Nov 22, 2012 01:04 PM
jeffery212
Discovery II
6
Jan 30, 2012 12:58 PM
rmace1
Discovery II
5
Jan 20, 2012 12:34 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 01:51 PM.