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Anon
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Cooling - or lack of it

As a relative newbie to Bedfords I discovered almost by accident the cause of overheating in our 2.3 petrol Autosleeper - and thought it worth sharing.

Experts will know this - but for us mortals, it's useful to know that the viscous cooling fan can fail. The problem on our van was masked by the fact that the fan still rotated, but was only idling and not producing much cooling effort.

Viscous couplings can be hard to obtain even second hand, so it may be a matter of converting to a conventional fixed fan. Parts cost for new water pump, fan etc is just over a hundred quid. It's also possible to adapt the viscous coupling to fixed - but the labour cost is the same as fitting the parts listed above ( two and a half hours labour)

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Wed 25 Apr 2012 @ 17:43 Edit this messageQuote this messagePMQuote this message
bluebedouin
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likaleica wrote:
.... It's also possible to adapt the viscous coupling to fixed - but the labour cost is the same as fitting the parts listed above ( two and a half hours labour)


Wouldn't five minutes with a welder do the same thing?!;D

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Wed 25 Apr 2012 @ 21:38 View bluebedouin   Email bluebedouin   Edit this messageQuote this messagePMQuote this message
Anon
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Or perhaps you might consider an electric fan. These are available quite reasonably from a breakers.

Martin
Wed 25 Apr 2012 @ 22:12 Edit this messageQuote this messagePMQuote this message
Anon
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bluebedouin wrote:
Wouldn't five minutes with a welder do the same thing?!;D

Or a drill & a couple of Sellock spring pins?



A working viscous coupling is more efficient though.

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Wed 25 Apr 2012 @ 22:24 Edit this messageQuote this messagePMQuote this message
Anon
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As always, many thanks for the sage advice.

The electric fan option is attractive, but here in London it is difficult to find an old fashioned breaker's yard where you can walk round and eye up likely parts. They all seem to be catalogue operations - fine if you need a standard part for a specific vehicle but useless for adapting or modifying.....unless someone out there in Beddieland knows which make/model electric fan is best ?
Thu 26 Apr 2012 @ 15:45 Edit this messageQuote this messagePMQuote this message
Anon
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I just bought two 8" Pacet style fans off ebay. Cost about £40, and I mounted one either side of where the water pump pully sits. They are controlled by a variable thermostat which sits in the radiator top hose (basically a mechanical switch that is triggered at a set temperature). bit more than a fan of a scrapper but it works very well.

Fans...


temperature controller with fan relay.
Thu 26 Apr 2012 @ 23:05 Edit this messageQuote this messagePMQuote this message
Anon
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Thanks for posting this, particularly with the pictures, Phil - this looks just the job to me. I'll have a look around for kit to do something very similar.
Sat 05 May 2012 @ 20:24 Edit this messageQuote this messagePMQuote this message
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