Early fresh air heaters

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gs.davies
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Early fresh air heaters

Post by gs.davies »

Having run my car around a bit during the colder weather, the recirculating heater really isn't up to the job, creating a little bit of warmth and causing a lot of misting up. I've got most of an early fresh air heater and I'm planning to restore these before fitting it up.

Has anyone got any pictures of the following for this type of heater?

- The controls as they'd have been in a 1961 car with it ordered as a factory item?
- The brackets that hold the snail blower to the inner wing?
- The type of heater valve that would have been used?
- The fresh air valve and how it's attached to the front panel?
- The route taken through the bulkhead for the control cables?

Also, I will need a pair of brackets to hold the snail blower and the fresh air valve. I understand that the midget also used the same fresh air valve, has anyone used this type?

I'm also hoping to retain the rheostat control for fan speed so I can make the snail run at different speeds - does anyone happen to know if the rheostat is capable of the currents involved in doing this for the larger snail type fan? If I can retain this, then maybe I'll use the Catmint lower dash switch panel to take the air and heat cables, and maybe the On/Off switch (or a variable speed switch?) if the rheostat can't be used.
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Re: Early fresh air heaters

Post by 63monte »

Gary, these data sheets from my well thumbed workshop manual should help.
This system is on my Cooper so If you need any photos let me know.
I think you will find that the hardest parts to find are the dash control knobs and the castellated water control valve. The extra large hose that goes from the blower motor to the front panel air intake assembly is available from Gordon Furness.
Good luck!
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Re: Early fresh air heaters

Post by gs.davies »

ah interesting. So the choke control was moved to accommodate the air and heat controls. On a twin carb cooper, would that arrangement have been the same?
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Re: Early fresh air heaters

Post by SMOKE GREY »

IMG_2942.jpeg
This is my car, the cable to the left of the ignition switch goes to the heater valve on the head. Originally the flower head type, but the later type would work the same. The cable to the right of the ignition switch goes to the flap on the front panel
This is held on by two screws, the mini one is different to the midget Riley 1.5 one, but that one can be modified. The choke cable is moved to next to the steering column, Riley 1.5 type cable on a bracket, the washer plunger moving to the passenger side. The heater blower switch is under the ignition switch on its own bracket.
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Re: Early fresh air heaters

Post by SMOKE GREY »

IMG_3718.jpeg
Photo of the cables under bonnet.
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Re: Early fresh air heaters

Post by SMOKE GREY »

Ignore the incar photo! Don’t know how I attached that! In Paddy’s RIP 6 EMO.
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Re: Early fresh air heaters

Post by SMOKE GREY »

IMG_2227.jpeg
Cables under bonnet. The choke cable comes through the grommet directly below the master cylinder.
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Re: Early fresh air heaters

Post by gs.davies »

SMOKE GREY wrote: Mon Mar 04, 2024 10:47 pm IMG_2227.jpeg
Cables under bonnet. The choke cable comes through the grommet directly below the master cylinder.
That answers the age old question I had about those holes then!

Great, thanks for your help.

As my car is getting a few interior mods, I’m looking at incorporating those controls onto a additional panel below the switch panel, perhaps employing the rotary MGB type to control the coolant valve and the fresh air flap, perhaps a two speed control using a P6 Rover fan switch too.

The matrix on these heaters is pretty large. Does this heater perform well compared to the more typical mini types?
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Re: Early fresh air heaters

Post by gs.davies »

What’s printed on the control knobs? ‘Push Heater’? What about the fresh air flap control?
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Re: Early fresh air heaters

Post by wild_willy »

The early 997 Cooper had AIR and HEATER knobs that were rather large and bulbous.
early 997_2.jpg
air control.jpg
earlycooperheatercable.JPG
.

Later 997s used knobs that looked similar to Coopers and S's
IMG_3564-1.jpg
The early choke cable knob was also somewhat unique with scalloped edges
IMG_7965.jpg
The fan heater switch for this type of heater was placed directly below the switch panel on its own panel
IMG_7965.jpg
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Re: Early fresh air heaters

Post by wild_willy »

Addition to previous post for heater fan switch
AUT_8808.jpg
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Re: Early fresh air heaters

Post by SMOKE GREY »

wild_willy wrote: Tue Mar 05, 2024 3:15 am The early 997 Cooper had AIR and HEATER knobs that were rather large and bulbous.early 997_2.jpg air control.jpgearlycooperheatercable.JPG.

Later 997s used knobs that looked similar to Coopers and S's IMG_3564-1.jpg

The early choke cable knob was also somewhat unique with scalloped edges IMG_7965.jpg

The fan heater switch for this type of heater was placed directly below the switch panel on its own panel IMG_7965.jpg
Never seen those cables like those before, is that car a 61?
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Re: Early fresh air heaters

Post by GraemeC »

SMOKE GREY wrote: Mon Mar 04, 2024 10:45 pm Ignore the incar photo! Don’t know how I attached that! In Paddy’s RIP 6 EMO.
Thought it was a special heater Pully :lol:
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Re: Early fresh air heaters

Post by morris cooper »

Never seen those cables like those before, is that car a 61?

These cables were supplied in the accessory Smiths kit, maybe before the fresh air heater was a factory option fit?
The cables are very well made with a brass ratchet operation, I think I have one somewhere but the knob is missing.
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Re: Early fresh air heaters

Post by SMOKE GREY »

morris cooper wrote: Tue Mar 05, 2024 4:40 pm Never seen those cables like those before, is that car a 61?

These cables were supplied in the accessory Smiths kit, maybe before the fresh air heater was a factory option fit?
The cables are very well made with a brass ratchet operation, I think I have one somewhere but the knob is missing.
Bill
[/quotee

Think you’re correct. The cables are different in the official SMiTHS retro fit heater kit 👍
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Re: Early fresh air heaters

Post by wild_willy »

The Cooper I restored was built in Australia in 1962 probably from a later 1961 CKD. The photos were a part of research I made for that restoration. I was able to purchase a NOS Air cable from UK way back then. I have a PDF from Somerford which clearly shows both types of cable with 27H1967 being the 1959-1961 part number for the AIR cable.
DSC03341.JPG
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Re: Early fresh air heaters

Post by Fanfaniracing »

The Heater and Air Cables are exactly like in my nov 62 built Cooper. In my Car this was a dream setup. Worked very well.

Changed later for a early Version to give place for the Brake booster...
I promise i won't buy another MkI...
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