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From previous posts it looks as though you describe your car as being the same as mine – a 1968 DS21 bvh (hydraulic gearbox). my only query is that in a previous post you say you have a ‘DY’ engine, which would have started life as 1985cc. Anyway, let me assume your car is a 1968 BVH car….
This first diagram here shows how the pipes fit the calipers on a
- bvh
car.
The pipe that goes from the LHS caliper to the accelerated idling control is fixed to the side of the engine – where the pressure regulator is, and at several other points along the way.
the pipe that goes to the centrifugal regulator goes over the bell housing and then straight up the bracket between HP pump and centrifugal regulator.
At their caliper ends, both pipes are fixed to the top of their respective calipers, then loop AROUND the outside of the parking brake mechanisms before continuing their journeys. I could maybe provide photos of these routes.
The second image here is from a later parts catalogue. caliper connections are the same. the only difference is in the routing and splitting leading to the calipers.
Sacha has a very good reputation – as does Jamie.
00FG 0640 relates to a Ds23 efi built for the 1973 model year (so some time between September 72 and july 73).
The numbers allocated for DS23 efi’s that year go from 0001 to 4921, so 4920 vehicles. The factory was open for 11 months so 4920 is about 450 a month? So if your car is ‘0640’ a guess would say it was built early in the model/ sales year – late 1972?? That’s a bit of a guess….
From the number alone, you can’t tell if it was built as a 4 speed bvh or five speed manual. But the ‘FG’ supports the idea of it originally being a Ds23 efi. Did you also find that number stamped on the lip of the engine bay as per previous photo? You sometimes find people swap car identities by screwing different plates off another car up by the wiper, so the numbers don’t match.
It’s no secret. You can find all the numbers here: https://www.hd19.net/technique/numeros_de_serie/numero_serie_presentation.htm
The other plate (that looks like the photo here) confirms it was a 23 efi bvh as it says “0057”. In contrast, in the photo here, “0058” means it’s still a DS23 efi – but a manual gearchange.
The round disc with AC527AS is the paint code. The ‘AC527’ part is the colour. In your case it’s ‘vert Argente’ which is a metallic green. Again, metallic colours tended to be reserved for the top of the range cars – so also fits in with the car being a DS23 efi bvh.
The ‘AS’ on that disc is the manufacturer/ supplier of the paint. AS stands for a company called ‘Astral’ who were/ are based in Levallos.
Hi
So it sounds as though this car was one of harry martens 5 speed bvh conversions – would that be right.being a late model DS, you should have:
A small ‘S.A.A Citroen’ plate riveted near the wiper motor that has the chassis number and the ‘series’ of the car (FG for example). (I believe ‘FG’ is the code for a 23 efi car)
Whatever that series is, it will be included in the chassis number – which for a car of your age will be something like’0X FG XXXX’.
That SAME chassis number should be stamped in the lip, just above the wiper motor. Peel back the rubber edge and you should see it stamped there. (see the photo below)
There should be another, longer, thinner ‘S.A.A Citroen’ plate (or maybe just an orange sticker?) just below the first one. That one will have/ should have a number beginning something like 0057 (0057 is, i believe the code for a 23 efi bvh).
Anyway, check that the chassis number on the plate is the same as the one stamped on the chassis, and then maybe come back here and tell us what that numbers/ those numbers are. Also tell us what number is stamped on your other plate.
We can then look those numbers up for you.
On the standard lights, one of the three wires is just a shared earth for the two other wires/ filaments. The earth wires are the ones with the brown tags on the ends.
The earth wire from the lights that goes into the wing loom, simply comes out of the loom again very close by. There are short wires fixed to the chassis (where the horns are on the LH side, and to the cross bar that holds the cranking handle on the RH side). Those are the earth cable that plug back into the wing looms.
For your Marchals, i would suspect that all you need to do is connect the two earths of the two bulbs together behind the light unit and then back to that one earth wire of the loom. Or run a second short length of earth from one of your Marchal bulbs to the same bolting point up by the horns.
Hi David
My dash is a little different to yours but i think the mechanics and principles are the same. The two louvred side vents are cold air only. You can’t really see the mechanism that distributes warm air – other than the two slots on the dash below the screen.
there is a box behind the dash that distributes warm air. other than up to the screen, warm air can be directed down to the LHS footwell. there is also a card tube through the LH sill that then carries it to the rear cabin. there is also a card tube running across behind the dash that carries warmed air to the RH footwell.
If you are not getting much heat:
Check in the engine bay that the cable that controls the valve on top of the heater really does open/ close that valve fully. maybe it only partially works or is dosconnected.
Still under the bonnet, pull out the card tube that goes into the heater fan box. make sure there are no obstructions along it’s length – particularly up at the heater end. look for leaves and/ or a mouse nest!
Your heater matrix could be blocked. You can remove the vale and check that for a blockage. Remove the heater matrix and flush water through it.
Those heater valves are plastic and very delicate. Be careful removing and replacing it – especially if you pull off the rubber hose.Also be aware that there is a rubber ‘O’ ring in a recess in the base. Don’t lose that or it will leak from the join when put back.
You can buy replacement valve units (though I hear mixed reports of quality/ longevity). You can buy replacement hater matrices or pay a local radiator place to clean out the one you have.
here are the heater instructions for a later car from an owners manual.
