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Smiths fresh air fans

Posted: Sat Mar 09, 2019 9:22 am
by chips01
Both my Smiths fresh air fans, if that is what they are known as, are loose and rattling around in the inner wings. The retaining bolts, rubbers, steel mesh and metal sleeves have all rotted out and are no longer around. Is there an update or mod for both these fans or is it a matter of just replacing the missing parts and refitting. Many thanks for your help.

Smiths fresh air fans

Posted: Sat Mar 09, 2019 9:40 am
by scimjim
Original or repro parts are still available - some replace with bilge pumps or modern fans (the list is huge :D ).

Whichever, I’d recommend relays in the system to protect the switch.

Smiths fresh air fans

Posted: Sat Mar 09, 2019 11:28 am
by TrevorG
Beauty of the originals is that you have two speeds....not sure if there are any bilge pumps that have that unless you wire up to the original blocks on top of the smiths motors.....has anyone tried this? All the connectors, three rubber mounts and cowl are available on eBay from a guy that specialises in making them for bmc cars.

Smiths fresh air fans

Posted: Sat Mar 09, 2019 1:38 pm
by chips01
TrevorG wrote:
Sat Mar 09, 2019 11:28 am
Beauty of the originals is that you have two speeds....not sure if there are any bilge pumps that have that unless you wire up to the original blocks on top of the smiths motors.....has anyone tried this? All the connectors, three rubber mounts and cowl are available on eBay from a guy that specialises in making them for bmc cars.
Thanks for that, hat sounds ideal. Have tried searching Ebay for him but no joy as yet. Will try again later.

Smiths fresh air fans

Posted: Sat Mar 09, 2019 1:51 pm
by scimitargtc
Slice 269 has the bilge pump detail I know as I’m currently looking for my copy!

Smiths fresh air fans

Posted: Sat Mar 09, 2019 2:59 pm
by TrevorG
Company was Ashley Hinton, mg spares specialist. https://www.mg-cars.org.uk The scimitar ones aren't on eBay at the moment but they probably make to order, might be worth contacting.....mine fitted perfectly.

Smiths fresh air fans

Posted: Sat Mar 09, 2019 3:06 pm
by AJL Electronics
Two speeds on bilge pumps? Dead easy. A pair of relays is all that is required. First switch position connects them in series. Second position puts them in parallel.

Smiths fresh air fans

Posted: Sat Mar 09, 2019 3:06 pm
by TrevorG
Found it....eBay ref. 292979542660

Smiths fresh air fans

Posted: Sat Mar 09, 2019 3:09 pm
by TrevorG
Great idea AJL, why didn't I think about that....getting old perhaps?