Dizzy or Vacuum Advance needed

[Northern_Mike]

Looking for the vacuum advance module, or a full dizzy in good working order for a GS 1299 motor asap.

[macplaxton]

What's the old one: SEV or Ducellier?

I know I don't have a whole one for a 1299cc (G13/625)

Notes say:
SEV Marchal 41301502, A401, GA8, GD4, 24, 2500,
Ducellier 525073(C), GA8, GD4, 24, 2500

There's a possibility I might have a GD4 vacuum advance wotsit.

[Northern_Mike]

I'll find out for you shortly and let you know Much appreciated..

[Northern_Mike]

It's a Ducellier.. what model, we don't know yet..

[macplaxton]

Having Googled the number I put at the top, it appears these have a physically different vacuum casing, that clips in one side and screws in the other (Rather than screws both sides to the body).

Next question. Is the vacuum capsule definitely shot? I ask because I've just read over on a R4 forum http://www.renault4.co.uk/forum/showthread.php?t=3507" onclick="window.open(this.href);return false; and Googled some pictures (and found my very own )


Vacuum advance 1 by macplaxton, on Flickr

There's a tiny hole in the can, and it needs covering before doing a test....

[citronut]

so is the one on you G electronic ignition,
i do have a plastic container full of GS/a DIZZY's, about a year or so back i went through them all checking general condition visually,
and model No.'s
and testing the vac capsules operated under vac/suction pressure,

i will see if i can find the notes and or check through them againg

[macplaxton]

If diaphragm has gone and mega urgent, there is always the option of carefully de-swaging the capsule and replacing the diaphragm with a portion of chopped up bicycle inner tube....

I'll find that link again later.

[citronut]

If diaphragm has gone and mega urgent, there is always the option of carefully de-swaging the capsule and replacing the diaphragm with a portion of chopped up bicycle inner tube....

I'll find that link again later.

or just pull the pipe off the capsule and plug the pipe, it wont make a lot of difference to how it runs

[macplaxton]

Oh no Malcolm, surely you can't be advocating wasting petrol?

Anyway, here's the link to the bicycle inner tube fix: http://matra-sports.forumdediscussions. ... d-allumeur" onclick="window.open(this.href);return false;

[citronut]

Oh no Malcolm, surely you can't be advocating wasting petrol?

Anyway, here's the link to the bicycle inner tube fix: http://matra-sports.forumdediscussions. ... d-allumeur" onclick="window.open(this.href);return false;

of course not Max , just until you happen to stumble over a bicycle parking lot ,

[Northern_Mike]

The dizzy is a ducellier 4451a
Or a duceller 525 073

[citronut]

so why the two different model No.'s Mike

[Northern_Mike]

This is just info I'm passing on from my bro up North (who I believe you've sent bits to in the past!). Those are the numbers stamped on the dizzy..

[macplaxton]

@Malcolm

I think the 4451A is the body part number or something. 525 073 is the number given to the whole thing.

e.g.

Ducellier case 2 by macplaxton, on Flickr

As you can see from the pic, 4431A is to the right. The GD4, GD1 is the mechanical advance curve spec followed by the vacuum advance spec.

But I think the 4451A has a physically different vacuum can attachment of clip over one side, screw in body the other, rather than two screws like the one I posted previously.