GS 1300 Lumpy idle and running any ideas please.

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Stonehopper
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Re: GS 1300 Lumpy idle and running any ideas please.

Post by Stonehopper » 18 Dec 2015, 15:30

The infamous cassette sets on the SEV Marchal dizzy I find a little easier than the Ducellier. With a suitable hole drilled into the side of the dizzy, an allen key can be inserted to adjust the points using a dwell meter. The allen key turns an adjusting screw which is not locked, but held by friction spring on the adjusters serrated circumference. Dob of blue tack or cork will keep the elements out if needed.
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Re: GS 1300 Lumpy idle and running any ideas please.

Post by myglaren » 18 Dec 2015, 16:58

CitroJim wrote:Back in the day I never relished the task of points adjustment and in the GS I'd relish it even less!

Never a fun job on a GS but one that seemed to need doing frequently.
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Re: GS 1300 Lumpy idle and running any ideas please.

Post by 2cy » 19 Dec 2015, 02:31

.."seemed to need doing frequently " : et se delinquent frog-eyed DEMON :twisted:
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Re: GS 1300 Lumpy idle and running any ideas please.

Post by macplaxton » 12 Jan 2016, 01:08

Stonehopper wrote:I find a little easier than the Ducellier. With a suitable hole drilled into the side of the dizzy, an allen key can be inserted to adjust the points using a dwell meter.


I find it harder...

You see I had a SEV to start with, and started with no hole. That's great! So I drilled a hole.
Image
Distributor modification 1 by macplaxton, on Flickr
Image
Distributor modification 4 by macplaxton, on Flickr

Slid an allen key in...

Image
Distributor modification 3 by macplaxton, on Flickr
Image
Distributor modification 2 by macplaxton, on Flickr

All okay to that point. Then I found two problems :grr: :grr:

First the cap clip on that side gets in the way of the hole a bit. Then the inner wing gets in the way a bit too. Add to that a new cassette that lasted a grand total of 1706 miles and broke the day my eldest was born.

So currently the car runs a Ducellier.
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Re: GS 1300 Lumpy idle and running any ideas please.

Post by Stonehopper » 12 Jan 2016, 09:37

A suitably shortened allen key should do the trick, and yes the clip is in the way, but switching the engine off then making an adjustment, then clipping back and restarting - and all without removing the distributor cap - must be easier?

I've just ordered (£££gulp!) a Lumenition electronic set for the Marchal. Hasn't arrived yet, and I have a few other issues to deal with like getting the Skoda through an MOT, but I'll post progress as and when.

PS

What broke on the cassette? I had a new one that wore the fibre heel down so fast it closed the gap completely during the first sixty miles or so (failed on the driveway as it happened - thank heavens!) Reset, and it's been fine ever since.
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Re: GS 1300 Lumpy idle and running any ideas please.

Post by 2cy » 21 Feb 2016, 15:25

"I see that Lumenition list a kit for the GS with Marchal distributor, but not Ducellier, although they have kits for other Ducellier models which maybe could be adapted."

On Friday I spoke to Cameron @ Lumenition re. optical ignition for the GS 1015 / G10. Yes, the SEV Marchall is much easier, as Lumenition's fitting kit (optical trigger unit) has been made to simply swap out that dissy's cassette ...but they also have a adapter for the Ducellier. However it's expensive. The electronic kit PMA50 is the same for both @ £165, whereas the fitting kit for the Ducellier is £74 verses just £16.25 for the Marchall. The kit for the Ducellier expense is both because it's so low volume and because they have had to make a new distributor base plate. It does mean that the base-plate-with-points is removed / replaced as a lump, and so is easy enough to carry in case of optics failure. But totalling £239+ I've decided not to go that route.

I have not enquired as to 123 Ignitions as I've heard various reports which lead me to question their quality control. It seems that their systems either works very well for years ..or can be persistently troublesome within days. And as I can't be arsed with unreliable.., I called Bransden Boyer. I've been happy with their motorcycle ignition before, and in fact still have their electronic / optical system on my Norton Commando. Their technicians were good enough to check the system over (for very little money) when I first bought this bike, and so I'm happy to use them on a car.

So, after due consideration... of living with the distributor's access issues (particularly with the Ducellier's outer bearing).., I've just invested £35+ in a Bransden Boyer ignition unit. This still retains the points - but reduces the power across the contacts to mA's. Thereafter the electronics accurately monitor and control the power to the coil. Bottom-line being that apart from wear on the heel, there's no wear on the contacts - so that they stay set, and rarely need replacing again. New Valeo points will be fitted.

NB. This car's standard coil has a 1.3 ohm primary resistance, and so Bransden are sending me (for just a couple £-quid) an appropriate 1 ohm resistor. This'll raise the resistance to be within their unit's 2 to 4 ohm criteria. It's simply fitted in-line between their unit and the coil.

I'd preferred an optical trigger unit.., but not so much as to warrant a £200+ (almost seven times) difference in price !

Conversely, with no changes inside the distributor, and their unit placed in series between the distributor the coil... it'll be very quick n' easy to bypass the Bransden (perhaps for diagnostics, in the event of problems, or a totally flat battery ) and revert back to the standard set-up. In practice it'll not be needed very often, but I sorta like the idea of having the option :-)

I'll let you know in due course how I get on.

p.s. what size allen key for the Ducellier ? ..looks to be a long 4mm ?
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Re: GS 1300 Lumpy idle and running any ideas please.

Post by macplaxton » 21 Feb 2016, 23:14

@Stonehopper
Later investingation showed that the points had jammed open somehow http://www.citroencarclub.org.uk/drupal ... hp?p=37252

@2cy
a) It's a S.E.V. that uses an allen key.
b) As per photograph description, it's a 3mm key
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Re: GS 1300 Lumpy idle and running any ideas please.

Post by falling-out-with-my-car » 18 Mar 2016, 00:20

Derek,
The carb is definitely a webber.
I know its only a 2 cylinder but my 2cv 123 ignition setup has been nothing but reliable
ever since I fitted the Harley Davidson coil pack and carbon plug leads
the original coil pack suffered with over heating badly because of its mounting position tucked
under the bonet lid.
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Stonehopper
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Re: GS 1300 Lumpy idle and running any ideas please.

Post by Stonehopper » 18 Mar 2016, 12:27

A Weber, OK. Webers are good. Some would say easier to set up than the Solex, but I wonder if there is much difference really.

Odd about 2cv coils. In over thirty five years of owning and running A series, I have never had a coil fail. I do have a few spares which have come my way over time, but the Harley coil seems to be a good choice if changing. The original 2cv coils are oil filled. If the oil escapes, then its cooling medium is compromised, though this would be noticeable upon inspection.
Lots more HERE:
http://www.2cvgb.co.uk/forum/showthread ... ight=coils

Still haven't got round to installing my stupidly expensive electronic set up. Old bones and outdoor fettling does put one off if the weather is anything but just so . . .
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