Heater controls

BX Tech talk
timbo
Confirmed BX'er
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Joined: Tue Jul 04, 2006 5:14 pm
Location: Swansea

Post by timbo »

All the flaps and levers under the dash have got lubricant on them and are in very good condition. The only problem is the one I described earlier (no air from the fan and the main flap will not open with the fan speed control dial). As i cannot access anything from under the dash, I thought it may be easier to go in from under the bonnet ie: remove the heater fan and have a look at whats happening with that main flap. I just don't have enough info as to whether it can be done from this way or not

ed4ferrets
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Location: Marshfield in the cotswolds ...

Post by ed4ferrets »

I reckon you should try that, perhaps something is jamming the flap, you should at least be able to free it and have air blowing through your silky locks :lol:
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Brian
BXpert
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Joined: Sun Jan 08, 2006 5:53 pm
Location: Bedfordshire UK

Post by Brian »

Hi Timbo,

Just took some pics of my spare one with the flaps/valve in positions noted,
thought this may assist...

Cheers and Good Luck.

Image
Heater control in hot position, main flap closed.

Image
Heater control in cold postion, Main flap open.

Image
Diverter flap gears

Image
Diverter flap Note the register pips, should line up as shown.
This is just visible, if you can get your head and light in the right place.

timbo
Confirmed BX'er
Posts: 83
Joined: Tue Jul 04, 2006 5:14 pm
Location: Swansea

Post by timbo »

cheers for that mate ... have just got some "BAD" news about the BX though. It turns out that it will cost a major sum to fix it .. I have been offered a Citroen ZX with a 1.9 Diesel motor... will post a new topic about the ZX as I know nothing about them ... stay tuned :?

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mnde
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Post by mnde »

Brilliant pictures! Thanks Brian.

So with the main flap open, and heater tap off, what feeds the main flap with cold air (MkII BX)?

Cheers,

Mark.

Brian
BXpert
Posts: 441
Joined: Sun Jan 08, 2006 5:53 pm
Location: Bedfordshire UK

Post by Brian »

Hi Timbo,

Sorry to hear the bad news on the BX...
Pitty you don't have room to keep it for spares, then get onother one with a better underbody, there are plenty around.

Mark,

Yes it can be a little confusing, but the main flap is controlled with a different cable, so is independant to the heater tap hot/cold cable.

Note!. 2 cables in the picture.

I just moved both the levers to indicate the movement / position of the levers at their extreem limits, to demonstrate for the pictures.

Cheers
Brian

timbo
Confirmed BX'er
Posts: 83
Joined: Tue Jul 04, 2006 5:14 pm
Location: Swansea

Post by timbo »

thanks Brian, It loks like the main vent flap is controlled by the geared arm. Is it the fan speed control dial that actuates the second control cable? ie: when that dial is at the 1 oclock position, it closes the main vent flap? I dearly wish I had an alternative for the BX. We haven't driven it very far but we sorta got an affection for it. That and sentimental reasons. It just goes so well... it really is a shame.