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  #101  
Old July 25th, 2011, 11:42 AM
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[/QUOTE] We took the advice of you guys here and decided to go to Napa to see if they had a belt that would work. We lucked out and the Napa was large, and the staff was very knowledgeable. They found a 6 rib belt of the exact length, whereas the factory belt was 7 rib. [/QUOTE]


Help us TDI owners out here, what is the NAPA part # of that belt? Could come in very handy in a pinch !!
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  #102  
Old July 26th, 2011, 09:55 AM
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Mike Hammond
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Quote:
Originally Posted by navydevildoc View Post
When we popped the hood, we noticed that the cooling fan was not running… but the radiator was too hot to touch, as were both the top and bottom hoses. So we knew that we had coolant flowing, and that the radiator wasn't blocked. So, we figured some of you were right and that the temperature switch for the fan wasn't working right.
Are you 100% sure the rad isn't partially clogged up with block sealer or what ever was dumped in there initially?
My 90 200tdi used to have temp creeping up on a motorway run problems, the temperature would creep up on uphill sections, wouldn't drop when the power was eased off on flat/downhill sections and the only work round was to let the engine tick over at idle speeds for 10 minutes. The rad was old and although flow was good scale on the internal tubes prevented proper transfer of heat. Various rad flush potions were poured in to no effect. I was running a standard viscous fan. I've heard that any fan does little to add to cooling at over 30 mph. When the fan broke off the viscous coupling shaft on my 110 ( luckily with no rad damage) a while ago I ran with no fan and no real difference to water temperature for a week until I fitted a new one.
The final solution for the 90 was a new radiator - all the hot running problems disappeared when the new radiator was fitted.
The bottom hose should be warm to the touch if the rad is shedding all the heat it is meant to.
Just something to bear in mind before you head out into the wilds of Alaska.

Following the trip with great interest at the moment from Toronto, later next month from Vancouver.
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  #103  
Old July 26th, 2011, 10:13 AM
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Julien Dalbin
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I think you should get back to the viscous fan setup.
Take it from someone who has been driving a Tdi
daily for the 6 past years in hot weather all year round.
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  #104  
Old July 26th, 2011, 01:33 PM
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Quote:
Originally Posted by JFD View Post
I think you should get back to the viscous fan setup.
Take it from someone who has been driving a Tdi
daily for the 6 past years in hot weather all year round.
Yes I'll second that - 3 summer trips to Morocco - viscous fan and no cooling problems, you could really hear it when the fan did cut in though, usually after a short stop with the engine off - real big roar as it shifted a lot of air for a short while to clear the built up heat and that was in temperatures into the +40°c bracket. Standard rad did just fine.
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  #105  
Old July 26th, 2011, 04:22 PM
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steve
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I dont think he can run a viscous unit because his rad is pushed back by a larger intercooler.

I know there are nay sayers but I run an electric taurus fan with a meticulously wired setup and I have no cooling issues, I do have a 4 core radiator. Even on the last trip to Baja in 110 degree heat, heavy truck, up hill, on the freeway, etc.... no problem. It has to be done right with a powerful fan.
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  #106  
Old July 26th, 2011, 04:44 PM
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Julien Dalbin
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Quote:
Originally Posted by D90user
...with a meticulously wired setup...
Exactly. I think his truck is missing that detail. The viscous operated fan will be more reliable for his trip imo.
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  #107  
Old July 27th, 2011, 08:04 AM
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Quote:
Originally Posted by D90user View Post
I dont think he can run a viscous unit because his rad is pushed back by a larger intercooler.

.
There should be no need to move the radiator back to fit a larger intercooler, even with AC. Electric fans have no place in a good expedition vehicle.
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new expansion complete. Not only are we the only Rover shop in Eliot Maine...now we're also the biggest.

"Dedicated to the resurrection of junk through engineering?"
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  #108  
Old July 27th, 2011, 09:46 AM
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Mike Hammond
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Quote:
Originally Posted by junkyddog11 View Post
There should be no need to move the radiator back to fit a larger intercooler, even with AC. Electric fans have no place in a good expedition vehicle.


He's got to run with the truck the way it is for now.
All I was saying was if he rad was top notch there shouldn't be a need for a fan while motoring along, the ram air effect should produce enough flow through the radiator. Tdi's produce next to no heat at tick over and any heat from fast driving should be easily dealt with by a good rad/fan set up within a minute or two of ticking over at a stand still.

------ Follow up post added July 27th, 2011 02:54 PM ------

Quote:
Originally Posted by D90user View Post
I I do have a 4 core radiator.
The standard rad is 3 cores? Did you notice much difference when you switched to the 4 core, Did you use the standard ends and get it re-cored or was it a totally custom fabrication? It's something I was contemplating for my 110 expedition truck/daily driver.
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  #109  
Old July 27th, 2011, 12:48 PM
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Tony Lawson
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Quote:
Originally Posted by junkyddog11 View Post
Electric fans have no place in a good expedition vehicle.
well then it's a good thing Steve didn't take his rig all through South America and over the Ande's. Oh, wait.....
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  #110  
Old July 30th, 2011, 10:07 AM
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Neill Thornton
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Hey everyone... we are nearing Civilization in Bellingham, WA on the ferry, so I thought I would post up.

First off about the fan... obviously a contentious issue to be sure. I don't have room in this truck for the viscous fan, so any discussion is purely hypothetical. I really liked Steve's Taurus fan.

The radiator has been suspect since this all started. We have several days in Colorado that I may use to pull the rad and get it re-worked to see how much crap is in it. I agree that a large amount of that stop-leak crap is probably in there. We have yet to find the original leak it was meant to stop, maybe it was in the radiator.

All in all, the electric fan is staying, but with a new temp sensor that has a lower temp before turning on, and an off/auto/on type switch in the dash to control what it's doing.
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  #111  
Old July 30th, 2011, 10:26 AM
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how about some pics of the trip? good luck, glad all is well now.
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  #112  
Old July 30th, 2011, 10:39 AM
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Do you guys need garage space in Colorado? I have room if you need it. There's also Fort Carson down the street and they have a very nice auto craft shop with lifts and everything. I'll be in town through Thursday and then I'm going to pack the truck and head for the mountains, maybe the LRNR.
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  #113  
Old July 30th, 2011, 10:40 AM
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Quote:
Originally Posted by discotdi View Post
how about some pics of the trip? good luck, glad all is well now.
We will later... still on cell service internet on the ferry. We are headed to the National Rally now via Washington, Idaho, and Utah.
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  #114  
Old July 31st, 2011, 07:23 AM
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Quote:
Originally Posted by 16kpsi View Post
well then it's a good thing Steve didn't take his rig all through South America and over the Ande's. Oh, wait.....
Just my opinion after having dealt with quite a few customers rigs and untold ridiculous issues that have resulted from the use of same.

...and of course there are always the exceptions ......

No insult intended to Doc or his rig and I hope the trip works out well.
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new expansion complete. Not only are we the only Rover shop in Eliot Maine...now we're also the biggest.

"Dedicated to the resurrection of junk through engineering?"
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  #115  
Old July 31st, 2011, 01:31 PM
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Neill Thornton
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Made it home from Alaska, got to Idaho on the way to the National Rally, and the water pump just grenaded.

F... M.... L.....

------ Follow up post added July 31st, 2011 12:13 PM ------

OK, time for a new question.

The belt tensioner... the part number is different from the V8 tensioner, but they appear to be the same.

Does anyone know if they are in fact interchangeable, or is there something different about them (such as the tension)?
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  #116  
Old August 1st, 2011, 07:28 AM
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something makes me think they tension in opposite directions. I'm not fully with it yet though. I do know that I have one if you need it and can shoot it out there in a hurry. I just retired my RRC so I have a complete spare motor (300) for the picking.
The aftermarket pumps available now seem to be pretty much junk.
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new expansion complete. Not only are we the only Rover shop in Eliot Maine...now we're also the biggest.

"Dedicated to the resurrection of junk through engineering?"
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  #117  
Old August 1st, 2011, 12:01 PM
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Quote:
Originally Posted by navydevildoc View Post
got to Idaho on the way to the National Rally, and the water pump just grenaded.
Where in ID? Got a garage with air near Moscow, ID if needed.
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  #118  
Old August 1st, 2011, 12:18 PM
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Neill Thornton
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We are just outside Boise at Josh's cousin's house. We lucked out that he is a mechanic, so we are covered. But thanks anyway!

Rovers North had all the parts we needed, overnighting a water pump and tensioner will not be cheap I am sure.
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  #119  
Old August 2nd, 2011, 11:59 AM
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Just got the box from Rovers North... new water pump and tensioner going on now.

------ Follow up post added August 2nd, 2011 10:49 AM ------

Well... new tensioner, belts, and water pump are on. Time to get cleaned up and press to Utah, and then the Rally. We may be a day late, but we should be there!
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  #120  
Old August 2nd, 2011, 09:43 PM
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God speed!
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