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  #1  
Old December 15th, 2007, 03:05 AM
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blower motor for 110 nas

i'm looking for a heater blower motor for the '93 110 nas and haven't had any luck. one source said they are different from the d90 nas and no longer available? anyone know of a source for these or a reasonable work-around?
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  #2  
Old December 18th, 2007, 01:05 AM
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This is not a direct answer to your question but, the local shop where I have my NAS 110 serviced indicated that they could have the heater motor rebuilt/serviced if needed. I had presented the question of "can you find me a spare blower motor" to them as I have been trying to find parts (all kinds of parts) related to the heating, ventilation, AC on my 110 and stocking them in the event (likely at some time) that I will need them. They thought that most repairs could be handled by a qualified motor-electrical person and I should not stress over finding one to keep as a spare. They hinted they had a souce here in town. Here being Santa Cruz, CA.

So, if they are correct maybe you could find a good motor repair (any kind of electric motor? Auto electric specialist?) shop near you and see what they can do. This assumes that the problem with your motor is within the realm of 'repairable'.

When you find the answer, either a source for a new one, or success/lack of success repairing the one you have please post it or send me an email at rdkurk@msn.com. I would like to know the outcome.

Good luck,

Rich K.
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  #3  
Old December 18th, 2007, 04:33 AM
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Rich. So far, [even when everything is working properly] the only evidence of heating, ventilation, or AC on my 110 has been a wool blanket, roll down windows, and a well stocked ice chest. I'm ever-hopeful, however. Will let you know if I find a work around.

Since the original motors are not available from the usual suspects, the solutions offered thus far include a) rebuild the motor if possible; b) find a similar motor and make it fit; c) rip out the original hvac and install a D90 heater system (this means no AC); d) rip out the original hvac and install a D90 heater and D90 AC system in the cab;or, e) rip out the original hvac and install a D90 heater, D90 AC system in the cab, and reconfigure the dash and vents to D90 specifications. As you might guess, the prices range from reasonable to laughable.

Interestingly, one well know parts shop told me "the NAS D110 had a special combined HVAC unit which allowed a cleaner interior...but, there were only 500 units made plus a few spares." This claim may be true, but it's hard to believe [even] LR would go to the trouble of engineering such a specialized part for such a limited run. I would think a more likely explanation was they used an existing uiit from some other vehcile - LR or otherwise - and made it fit. After all, the NAS 110 was a bit of a parts bin production. If this system was used elsewhere, it would be nice to find a cross reference to another vehicle if there is one - so far, no joy.
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  #4  
Old December 18th, 2007, 08:54 AM
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Quote:
Originally Posted by Davis M
Interestingly, one well know parts shop told me "the NAS D110 had a special combined HVAC unit which allowed a cleaner interior...but, there were only 500 units made plus a few spares." This claim may be true, but it's hard to believe [even] LR would go to the trouble of engineering such a specialized part for such a limited run. I would think a more likely explanation was they used an existing uiit from some other vehcile - LR or otherwise - and made it fit. After all, the NAS 110 was a bit of a parts bin production. If this system was used elsewhere, it would be nice to find a cross reference to another vehicle if there is one - so far, no joy.

That isn't true. 110s overseas of the same vintage had the same HVAC system as the NAS 110s. It wasn't used very long. I think they found out fast just how bad it sucked and then the company that made the system (Wynns if I recall correctly) went under.
It was not an NAS 110 only system.
The motor can be repaired or a used one can be installed. Updating the system is a better option, but it is much more costly.
Anything can be fixed. Unless you wanted to update to have better stuff with easy replacement parts the NAS 110 HVAC system can be kept going. We fix them all the time. I hate them, but we can fix them.

Follow-up Post:

I took a look at our parts books and the parts book we have that was printed in 1997 that covers 110s made from April of 1995 on, still shows the "NAS style" HVAC system used on overseas 110s.
Blower # is the same, as all the other parts, I crossed them, with our NAS 110 book. Blower motor is RTC7440
That part is out there overseas, you just might have to dig a little, or I can take an old one and have it rebuilt for you, or I can get one for you.

I feel bad for you guys... these parts places just keep handing out completely wrong info and saying it is the word of god.
Theyts are just making you panic. This is not a big deal.

Follow-up Post:

Did a quick web search and stopped looking after finding 5 places with that motor in stock overseas.
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  #5  
Old December 18th, 2007, 10:07 AM
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many thanks for the info and clairification, mike!
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  #6  
Old December 18th, 2007, 10:47 AM
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I think Elite made the NAS type heater A/C unit.

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  #7  
Old December 18th, 2007, 11:12 AM
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Elite was the second or third manufacture of the NAS 90 AC system. There is Wynns, Diava (spelling?) and Elite.
We used to deal with Elite directly years ago for rear AC units. I still have all the literature. Rover used them until they switched to the Smith South African systems they use now.

I believe the NAS 110 HVAC was made by Wynns because they were a US company, but I've been wrong before.

When we talked to the guys at Elite about adding rear AC to NAS 110s they said it couldn't be done and they had no data on that style of HVAC system. They were helpful, but they couldn't help as all the fittings in an NAS 110 HVAC system are standard (US style) and everything from Elite was metric.

That lead to us having to make adaptors to switch from standard NAS 110 AC fittings to metric in order to fit the Elite rear AC unit, so I don't think Elite made the 110 HVAC system, otherwise they would have known a lot more about it when I was dealing with them.
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  #8  
Old December 18th, 2007, 03:51 PM
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Andrew Najarian
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Not sure about the whole system but the switch in the 110 was made by Sanden.
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  #9  
Old December 18th, 2007, 04:04 PM
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If I am correct, Diavia did the '94's (evidenced by the control switch between the fresh air vents) and Wynns did the '95's (control switch on the unit). George at RDS often has pieces for the Wynns but not for the Diavia.

Two years ago I had a bear of a time finding some parts, so my mechanic cobbled something together. Since then it works about as well as it ever did, but I'd still love to replace the whole interior unit. Hard to justify over $2k in parts and work for something not broken.
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  #10  
Old December 19th, 2007, 10:50 AM
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Mike, thank you for the background infomation. I do stress over the heater-AC components on my 110. I have been able to find just about everything for the 110 with a little work, but heater-ac items are really difficult if not impossible to find. I am lucky in that I live in a very mild climate, but the thought of no heat, or no AC, or not being able to get fresh air (with out rolling down windows) in the 110 is a big deal to me, hence the stress. You are right, a complete replacement of the system is probably the answer, but the cost (high?) is not within my budget.

Davis, I assume you have already checked, but Eric Riston at Atlantic British and George at RDS have been helpful and patient searching parts for me in the past. I remain interested in the outcome of your problem. Please post a reply or send an email on the outcome and particularly if you find sources for heater-ac components (I can add them to my list).

Thanks,

Rich K.
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  #11  
Old December 19th, 2007, 04:34 PM
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Who sells the current Smiths rear 110 a/c systems ? Anyone know where to buy the kit as an add on ?
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  #12  
Old December 23rd, 2007, 06:22 PM
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Rich, it turns out the blower motor works, but the squirrel cage had jammed causing the motor to stop and blow a couple fuses. So, we were able to get everything working without the need for replacement parts...this time. Anyway, I only got as far as contacting John Craddocks Ltd. in the UK to see if they had the motor (part # RTC7440) in stock. They showed it in their spares stocklist but their reply to my email inquiry suggested it was not actually in stock but would need to be ordered from "their" supplier - they quoted me 186.84 + vat. They haven't replied to my email asking if it was actually available from their supplier. I'll let you know if I ever hear from them.
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  #13  
Old December 27th, 2007, 10:27 PM
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Thanks for the info on the blower motor. I am glad you found the problem without having to replace it (at 187 x 2 = a lot in US currency). Again thanks and good luck.

Rich K.
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  #14  
Old January 2nd, 2008, 11:58 AM
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Rich, as a follow-up to my follow-up...it turns out finding a blower motor for the NAS 110 may indeed be a challenge. I've heard conflicting reports from various US shops about availability so I took one shop's advice and contacted a large UK parts source - John Craddocks Ltd. As mentioned earlier, they didn't have one in stock at the time and just now sent me an email regarding availability:

"...Sorry for delay in replay, we have been waiting for our suppliers to come back to us they say it is now no longer available."

I'm not sure if that's the final nail in the coffin for all suppliers on this part, but it does make me wonder.
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  #15  
Old January 2nd, 2008, 12:41 PM
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Davis,

Knowing nothing about the particulars of the part, would it not seem like, if any, this piece could be rebuilt by an automotive hvac specialist? When I was researching parts for the Diavia unit, I came across a number of firms online who offered rebuilding services for various pieces. Is this part listed as the motor only, or the entire fan unit? I imagine the motor itself might be a somewhat common piece, perhaps interchangeable.

Just a thought.
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Old January 2nd, 2008, 01:13 PM
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Motor should be rebuildable or coble something together.
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  #17  
Old January 2nd, 2008, 04:34 PM
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Robert, your thoughts are all good. The part number is, as far as I can tell, just for the motor. And...yes, a rebuild would definately have been my first stop with the motor; fortunately, in my case, that turned out to be unnecessary. Finding the original part or matching the motor would be the second choice if one was trying to keep the stock set-up. However, for those (which might include me the next time this happens) who are willing to depart from the original set-up, the d90 heater matrix and blower seems to be a much better (ahem, more expensive) solution. (Of couse, that means that the A/C, if desired, would have to added to the interior which means more plumbing, parts, expense, etc.) My last post was only intended to pass on what I learned while trying to locate the original part via a UK stocklist. I definately was not trying to suggest it was "the" solution; I was trying to indicate that "a" solution may no longer be available.
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  #18  
Old May 1st, 2008, 12:50 PM
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WOW This thread was a big learning curve for me. I'm also looking for blower motor (part # RTC7440) and i had no luck! any help?

Follow-up Post:

Quote:
Originally Posted by ECR
That isn't true. 110s overseas of the same vintage had the same HVAC system as the NAS 110s. It wasn't used very long. I think they found out fast just how bad it sucked and then the company that made the system (Wynns if I recall correctly) went under.
It was not an NAS 110 only system.
The motor can be repaired or a used one can be installed. Updating the system is a better option, but it is much more costly.
Anything can be fixed. Unless you wanted to update to have better stuff with easy replacement parts the NAS 110 HVAC system can be kept going. We fix them all the time. I hate them, but we can fix them.
My D90 has the HVAC system too. and my blower motor needs to be replace! I dont have the budget right now to do the update.

Fidel, Can you help me out. Can I ship you my blower to have it fix? How much would it cost?

Panama is humid-HOT need my AC fast!
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  #19  
Old May 1st, 2008, 01:39 PM
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Wouldn't an alternator/generator place be the best place for a re-wind? Its one of those basic-industrial-type shops which can be found in most areas where people work for a living.
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  #20  
Old May 1st, 2008, 03:49 PM
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http://simmonites.com/Defender%20Interior.htm
I saw this site the other day and they have a higher output heater matrix. Might help in colder climates if you are going to be pulling the box apart anyway.
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