| Author |
Message |
    
Chuck McGovern (Chuckster)
| | Posted on Wednesday, September 25, 2002 - 09:30 am: | 
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Hey Guys,
Came home late last night and as I turned onto my street I noticed a clunking noise. Pulled into the driveway to find coolant POURING from underneath - I suspect the water pump but I'll know for sure tonight when I climb under there...
BTW...brand new radiator and T-stat - kicking my ass I didn't replace the water pump then. Learn from this.
Any tips/pictures/suggestion/places to buy???
I've replaced water pumps before in my other trucks, but this is my first Disco water pump. Any knowledge passed down from the gurus will be greatly appreciated.
Thanks,
Chuckster |
Paul T. Schram (Paulschram)
| | Posted on Wednesday, September 25, 2002 - 10:05 am: |
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Chuck:
If my experience is anything to go by, you will spend more time scraping gasket bits from the front cover!
DAP is rumored to have the lowest prices for water pumps.
The bolts are of different lengths and diameters, but it shouldn't cause you too much trouble.
FWIW-I found it to be easier to swap pumps on the Rover than any other vehicle I've ever swapped water pumps. The pump is very light and doesn't require alignment pins like SBCs do.
I have some suspicions that the water pump is actually the same as another domestic manufacturer's pump, but haven't had a chance to investigate further. Let's just say it looks very similar to somebody else's!
Paul |
Chuck McGovern (Chuckster)
| | Posted on Wednesday, September 25, 2002 - 10:37 am: |
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Thanks Paul, I appreciate the input!
Any tips for dealing with the belt or anything else? I know in my last truck I had to remove some parts just to get at the bolts. Anything like that that I should be aware of going in?
I did a keyword search but I couldn't find anything...
(I was hoping Blue would jump in with some of those incredible detail photos :-)... Come in Blue... are you out there? Over...)
Chuckster |
Dee Cantrell (Discodad)
| | Posted on Wednesday, September 25, 2002 - 11:18 am: |
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Soak the nut for the viscous coupling with pen oil so it will come off easy i for got the wrench size needed its a big sucker... |
JC
| | Posted on Wednesday, September 25, 2002 - 11:25 am: |
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To add to what Dee said, when you're facing the Disco from the front, you want to turn the wrench counter clockwise, and it can be a beast to get loose. |
Paul T. Schram (Paulschram)
| | Posted on Wednesday, September 25, 2002 - 12:21 pm: |
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OK, time for some viscous coupling removal tips...
I use a 1-7/16" wrench. doesn't fit exactly, but it's a whole bunch better than a crescent wrench.
It is difficult to immobilize the pulley to allow for removal of the fan. Again, I use a pry bar to lever against the bolts holding the pulley onto the water pump. I was hesitant to do it this away, until I saw the tool that Land Rover specs and it is little more than a pry bar! Also, once you immobilize the pulley, it is pretty easy to give the wrench a healthy wallop and the fan spins right off.
There should be no need to remove anything more than the belt, fan and fan shroud to facilitate access to the pump.
While you're in there, give some thouht to replacing the clamp on the supply line to the power steering pump as this is a common source for leaks.
Sorry, I have very few pictures as the digi camera is the wife's and she either won't let use it, or she won't send the pics to me to do anything with them! Someday when the shop is making money, I'll buy one and not let her use it!
Paul |
Bill Bettridge (Billb)
| | Posted on Wednesday, September 25, 2002 - 12:35 pm: |
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One trick that someone else posted here a while back to immobilize the pulley while you're removing the fan clutch is to roll up a bath towel (preferably not one of your wife's good ones - BTDT) and stick it between the belt and the pump pulley - it wedges when you turn the wrench. (BTW - I've always used 1 1/4")
Sounds pretty shade tree I know, but it worked really well - I was surprised.
As Paul mentioned - all the bolts are different lengths - so just make sure you keep track of which one came from which hole!
Finally - a little spray on gasket remover helps ALOT to clean up the timing cover face.
Bill |
Chuck McGovern (Chuckster)
| | Posted on Wednesday, September 25, 2002 - 12:46 pm: |
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You guys ROCK!
These are great tips - keep 'em coming if you got em! Good point on the PS lines, they've been leaking badly since I bought the truck...
I just ordered the WP and it should be at my house in the morning... I'll let you know how it goes |
Bill K (Bill_K)
| | Posted on Wednesday, September 25, 2002 - 01:02 pm: |
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When you scrape off the old gasket, use one of those paint scraping things with the plastic handle that you can get from the Home Despot. Also, you might want to think about replacing hoses since they are very easy to access with the fan and pump off. I had never replaced a water pump before and found that the LR pump was pretty easy. Also, the fan nut is 36mm Go to http://www.bavarianautosport.com/shop.asp and look for a fan clutch removal tool. They have one that is thinner than normal for better access to the nut. |
Paul L
| | Posted on Wednesday, September 25, 2002 - 03:44 pm: |
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I tried all these methods with NO luck to immobilize my fan pulley. Here's what I did: Buy a strap wrench..it's cheap and it WILL hold the pulley still. I tried every trick under the sun for an hour a day for a week (my pump was only squeaking) and using the strap wrench, had the fan off in 5 min. Try this link for your water pump $65.00 http://www.motorcarsltd.com/epcProductDetail.epc?subcatid=0829&cookieID=0RN16R7NG |
Paul L
| | Posted on Wednesday, September 25, 2002 - 03:46 pm: |
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Chuckster...the above info is for a DI (1995). I don't know what year your Disco is...Make sure you get the right one. |
Paul T. Schram (Paulschram)
| | Posted on Wednesday, September 25, 2002 - 04:17 pm: |
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When buying a water pump, the critical issue is whether it has a serpentine versus multiple v-belt. The water pump for the serpentine belt engine does not extend as far toward the left side of the engine.
As for immobilizing the viscous clutch, I tried the tried and true method of stomping on the belt, the rolled up shop towel and stuffing one of the cats into the gap between the pulley and belt and nothing worked for me. The pry bar method worked perfectly and left me embarrassed I hadn't done it sooner.
If you go to motorcars ltd, talk to Eric Osborn and tell him Paul from BTL Engineering sent you. I just got some parts from them last month, and they were very helpful to me-especially when my radiator arrived torn up. |
Chuck McGovern (Chuckster)
| | Posted on Wednesday, September 25, 2002 - 07:17 pm: |
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I'm in the process of pulling the pump now because the new one should be here tomorrow. BTW...It is a 94 DI auto with 130K on it.
I'm going out to try to get the fan off. I am a Master Plumber by trade so it's not completely foreign to me, but I really appreciate all the input from everyone. Many thanks!
But don't go anywhere! I may still need you!
OK... I'm going in - cover me!
Chuckster |
Chuck McGovern (Chuckster)
| | Posted on Sunday, September 29, 2002 - 08:58 pm: |
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Hey Folks,
Well, I managed to get my water pump back together and it went off without a hitch - thanks for all the great suggestions.
Here's some things I learned:
--It was MUCH easier than the pump on my old Mazda pickup. Plenty of room once you get the fan and shroud out of there.
--The "towel trick" didn't work for me, it kept slipping. Getting the fan off the coupling was clearly the most difficult part of the job. So my personal tip is to wedge a long flatblade screwdrive into the pully bolt heads, and then brace it by sticking a 15mm socket only onto the main bolt for the tensioner. One swift tap on the fan nut and it spun right off. Touched it with some teflon anti-seize for the next time...
--I took the advice of everyone here and replaced the clamps on my power steering lines. I cut back about a 1/2" of hose and put some beefy Breeze stainless clamps on until I can save up for new lines. Doing this while the fan was out was much easier.
Thanks to all who replied and hopefully I can return the favor someday in the future.
Drive safe. |
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