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Re: Hiya - a new guy here

Posted: Tue May 07, 2019 10:56 pm
by ul9601
Are there some friendly French or other non-UK forums around that I can pick their brains from?

As stated before, mine is super rare carb model XU10, so there resources here is a bit limited in that aspect.

I ask this because there was a bit of drama with starting this morning (not too cold by UK standard, probably 10°C).
Basically if I don't warm up (by just letting it idle) for say around 2-3 minutes, the engine dies and it won't start again for another 5-10 minutes.
I drove uphill for around 100m then it died and wouldn't start so had to roll back down to a spot I could safely park.
I think it might be the choke - the previous owner told me he put a BX choke - it's supposedly similar but I don't think it's quite working right.

Cheers

Re: Hiya - a new guy here

Posted: Wed May 08, 2019 5:57 am
by xantia_v6
You may struggle to find English-language expertise on these carburettors. I am not certain of which carburettor you have, but if it is a Solex 34-34 Z1 (or similar) then this document (in French) seems to be the bible: http://xrms.free.fr/divers/405/tout_sav ... _rev_B.pdf

You could try asking for help on the BX forum https://bxclub.co.uk/ , but I don't think that there are currently any carburettor experts there. You could also try on FCF https://frenchcarforum.co.uk/forum/ , but again, people with experience of working with carburettors are becoming rare.

Re: Hiya - a new guy here

Posted: Wed May 08, 2019 7:23 am
by White Exec
Looking at ServiceBox parts for the car, under VIN number...

Carburettor is listed as
"1998L and monopoint inj and (XT) export" "SOLEX16008PSA475"
.
Sam's XM 2.0carb - carb details.JPG
.
Sam's XM 2.0carb - fuel filter.JPG
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Sam's XM 2.0carb - fuel filter pipes.JPG
.
.
Have had no joy with googling that carb number, except to find some sensors for it.
Haynes BX book (#908) doesn't list it, but does go into decent detail on lots of others.
Haynes do a Carburettor Workshop Manual (#4177) which includes Solex, but not that one.

Some parts for the unit here:
https://www.oscaro.es/sensor-posicion-m ... 11125-0-gt

Re: Hiya - a new guy here

Posted: Wed May 08, 2019 8:14 am
by xantia_v6
That is interesting. Monopoint injection is a completely different beast than a conventional carburettor. Maybe this car has been converted back to a carburettor? We really need the ID of what is actually fitted to the car.

Re: Hiya - a new guy here

Posted: Wed May 08, 2019 8:33 am
by White Exec
Hi Mike,

Yes, confusing. Cit Parts refer to carburettor-monopoint inj as one item. I guess it is, in the sense that the mixture has only one hole to go down!
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Sam's XM 2.0carb - carb listing.JPG
.
The parts info above was derived from Sam's VIN no., and the Characteristics you can see in a post on p.1 of this thread (a PDF).

Have asked Sam to look to see whether what's on the car is the same as the parts diag above.

:? :? :?

Re: Hiya - a new guy here

Posted: Wed May 08, 2019 9:10 am
by xantia_v6
There were XMs sold in Europe with a conventional carburettor (the Solex 34-34-Z1 that I linked earlier), which was also used on the BX and Peugeot 405. I am not aware that the carburettor was an option for the XM in the UK (where this car apparently originated). A monopoint 'carburettor' would not have a choke, so is apparently not what is fitted to the car now. Maybe it has had an engine swap?

Re: Hiya - a new guy here

Posted: Wed May 08, 2019 10:27 am
by ul9601
I'll have a closer look but looks like the car's had some random running repairs over the years so I wouldn't be surprised if things have been swapped etc just to keep it running.
Thanks guys.

Posted: Sun May 12, 2019 6:48 pm
by Eddie nuff
"I am not aware that the carburettor was an option for the XM in the UK"

I know of three carb XM's in the UK. One is sorned, but fit for the road, the other two are scrap.

Re: Hiya - a new guy here

Posted: Sat May 18, 2019 8:28 am
by Dieselman
ul9601 wrote:
Tue May 07, 2019 10:56 pm
Basically if I don't warm up (by just letting it idle) for say around 2-3 minutes, the engine dies and it won't start again for another 5-10 minutes.
I drove uphill for around 100m then it died and wouldn't start so had to roll back down to a spot I could safely park.
I think it might be the choke - the previous owner told me he put a BX choke - it's supposedly similar but I don't think it's quite working right.

Cheers
That sounds like carburettor icing. Ensure the warm air intake snorkle is attached and workging properly.

Those Solex carbs are a bit fickle, see if you can source a suitable Webber twin choke to replace it with.

Re: Hiya - a new guy here

Posted: Mon Jun 03, 2019 8:52 pm
by ul9601
Ok so I took the air cleaner thingy off and had a quick look.
As Dieselman said, the warm air intake wasn't really going anywhere - only a foot long of the flexible metal duct was attached to the exhaust manifold heat shield. Also, one of the four carb-to-manifold attachment bolt was 3/4 way out... And maybe a few vacuum hoses missing and a connector unplugged but not sure where from. I'll need to get the warm air ducting sorted first and see if that makes it better.