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Lanchester LA10 Carburettor

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JCG
Posts: 4
Joined: Tue Jul 11, 2017 11:17 am
Location: Wisborough Green,West Sussex

Lanchester LA10 Carburettor

Post by JCG »

My car has developed a leak from the exhaust manifold. After removing the SU-carb and the exhaust manifold, significant wear was found in the carb inlet flange (which is horizontal on this model). The flange face and the inlet hole are both badly out of shape. The carb is an SU, HV2-model and is made of Mazak.
Initially I found an SU-body from Burlens, but when it arrived, it did not have a bracket to attach the hand throttle linkage. Although it is made of aluminium and therefore superior, we will have quite a job in order to modify it successfully.
So, what I am after is a replacement carb-body for my 1936 LA10, the one with the 1444cc engine. Alternatively a complete carb.
Can anyone help, or perhaps suggest a practical solution?

John Gough

Galdog
Posts: 22
Joined: Sat Jan 07, 2017 11:41 am
Location: Coventry

Re: Lanchester LA10 Carburettor

Post by Galdog »

Hi John
I do remember Alan(big Al on the forum) having considerable difficulty obtaining a replacement carb body for his LA11 1444 cc engine, if memory serves me there are plenty of the opposite hands on eBay, but our carbs are more difficult to source.Perhaps Alan will pick up this thread and remind us how he overcame the issue not sure if he had to persevere looking on eBay until one turned up,or found a method to modify the other hand.
I recently purchased a spare engine for my LA 11 but alas the carb had already been removed as it had been damaged by the previous owner.

Kind Regards
Paul

JCG
Posts: 4
Joined: Tue Jul 11, 2017 11:17 am
Location: Wisborough Green,West Sussex

Re: Lanchester LA10 Carburettor

Post by JCG »

Thank you Paul.
Yes, Alan Wheatley has pointed me towards a Solux carb on e-bay, which I am thinking about. I dont have an e-bay account and tend not to use the site, at least I haven't up to now.
I would prefer to try and get a suitable SU as a first choice option, but of course I would be happy to hear from someone who has already overcome the same issue that affects me.
It is a frustrating time to be AOG awaiting spares.

Regards,
John

Simon Hyslop

Re: Lanchester LA10 Carburettor

Post by Simon Hyslop »

Some of the following may appear slightly unhelpful but it's not meant to be, just explaining the line of thought about these carburettors.

Firstly, regarding the Solex carbs. Similar, with these, isn't "the same" and if a Solex has been one of a pair rather than the single carb on the car, it may not have the starter on it, although the one off another carburettor will do. They only fitted the starter to one of a pair and not to both. Also, it may be the opposite hand and it is important to check that all the components are the same as the one you would need.

The Solex fitted to the Lanchester 10.8 hp engine was a 30HTD. A 30 BFHD was fitted to the 14 but the 30HTD was the single solitary fitment of this carburettor. The relevant component sizes are Choke 23, main jet 110, correcting jet 220, pilot jet 050. There are few models with a 23 size choke and the jets should be interchangeable. You'd maybe think that the number of the carb designates the choke size but it doesn't. A 30AIP can have a choke of 23, 25 or 29, for example.

Some people wouldn't swap an SU for a Solex but on the other hand, I have a 1947 Rover so I could have the Solex on it as I always had bother with downdraught SUs on the pre war models , but others seem to be spared the misery so who knows?

Next, the SU HV2. The first place I thought of was this firm : http://carburettorspecialists.com/CHLAUG2016.htm. The page I've given the link to is their stock of carburettors and about half way down is their SU stock. They have had HV2s in stock but are showing 0 stock now. However, maybe worth a call to in case they have bits. There is a menu at the bottom of the page that takes you to their other lists of parts.

HV2 carbs were fitted to Morris 10s prior to the Series III and M, all the 12s 1934-37, Series 1 Morris 14s, 1934/35 Morris 15s.
They were also fitted to MG M types and KD/KN Magnettes. This may open up another possibility. This firm :

http://mg-parts-spares.co.uk/

took over the spares business of Barry Walker recently. He used to have regular finds of carburettors and although their website may look somewhat bare in comparison with how things used to be, they must have all the stuff he used to have. Maybe worth a call as the MG owners won't see themselves stuck for a carburettor body.

That's I think as much as I can suggest for now.

JT7196
Extremely Wise Man
Extremely Wise Man
Posts: 1535
Joined: Sat Feb 13, 2016 7:22 am

Re: Lanchester LA10 Carburettor

Post by JT7196 »

Hi, looked on eBay, and the only Solex Carb is the wrong hand, I bought a N/ O/ S one of these and was able to use the Throttle Body part, with a bit of modification to overhaul my carb.
Finding the correct one ,will be very difficult, trust me ! !

Cheers A'l :D :D :D

JCG
Posts: 4
Joined: Tue Jul 11, 2017 11:17 am
Location: Wisborough Green,West Sussex

Re: Lanchester LA10 Carburettor

Post by JCG »

Thank you both Simon and Big A'l.
I will have a look into all the interesting info you have supplied as well as discuss things with my friendly auto-engineer, who incidentaly drives a fifties Morris Six (and is a bit of an SU-carb fan).
Although a degree of authenticity would be a good thing, I would settle for a practical engineering solution, whatever that may be.
Hey ho, my trip to South Cerney is looking unlikely now.

John

Simon Hyslop

Re: Lanchester LA10 Carburettor

Post by Simon Hyslop »

http://m.ebay.co.uk/sch/i.html?_nkw=Lan ... hester+hv2

There's an HV2 carburettor, supposedly restored - to be fair it looks good in the photos - on ebay tonight. It's starting at £260 ish and is on for 9 days. Link above.

JCG
Posts: 4
Joined: Tue Jul 11, 2017 11:17 am
Location: Wisborough Green,West Sussex

Re: Lanchester LA10 Carburettor

Post by JCG »

Thank you Simon,
I have looked at the link and contacted Tony McInnes from Classic Fuel Systems in Bradford.
He can supply a complete carb, which he says is little used, which they have refurbished and "is better than the one we currently have on e-bay". The unit is of the same vintage as the one on my car and is made of mazak.
The only thing that it lacks, as far as the Lanchester is concerned, is the hand-throttle attachment. However, it does have the necessary fitting casting and I should be able to use some of my existing parts to complete it successfully.
I am looking forward to receiving the part in the post, fingers crossed it'll be just what I need.

John

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