Amal carb rebuilders

[John Newman 0]

I have a pair of Amal 76/187's from BSA's 1938 350cc B.24, 25 and 26, both of which need parts and rebuilding. Does  anyone know of anyone in the UK that rebuilds these carbs? I'd like to keep these because they have the vertical stud pattern and the reproduction carbs have the horizontal stud pattern and I 'd rather not use and adaptor and keep as much period original on the bike. They were found in a basket case 1938 BMW R12 project I have.

Thanks

John

[smiffy 11]

Try this company http://amalcarb.co.uk/

[welbike 10]

Martyn Bratby still does very good work, takes some time, but worth the wait, no email or computer, Ron will have his phone number handy? below a carby he did for me.

Cheers,

Lex

[John Newman 0]

Thanks for the responses. I took the carbs to Michael at Surrey Cycles. He is going to get the missing parts together and get them to Martyn  to work his magic on them.

 

Regards

 

John

[Ron 20]

Best to go straight to Martyn Bratby on 01543 572583.

Amal won't refurb your carb. They will sell you new parts or a complete new modern carb. Surrey Cycles and Hitchcocks are selling new Amal products too.

Ron

Edited January 21, 2019 by Ron

[welbike 10]

Yes, and Martyn doesn't like the quality of their parts..... he makes his own, usually cheaper too.

Cheers,

Lex

[cbranni 10]

Seeing that BSA B 26 was mentioned in first post I thought I might show mine off here, not military I know but for a 1938 bike it performs really well even in today's traffic and I love it.

 

 

[John Newman 0]

Lovely bike. Can you tell me which type of Amal is has. According to references it could be a 76/187. Is the head inlet stud pattern horizontal or vertical?

John

[cbranni 10]

Hello John, the carb is a 6/187 I believe, (I can't get close enough to check the number) when I found the bike it had a standard carb with horizontal fixing holes using an adaptor plate which looked awful so I bought a vertical fixing carb off ebay which looks and work great.

Never quite understood why BSA used the horizontal carb on these models, maybe because they were early OHV engines and room for the cables under the tank was an issue.

Float level is also very important mine runs best with slightly lower level.

[Ron 20]

Was the horizontal carb to avoid fowling the magdyno? Some makers used a long throat carb to get past the magdyno. 

For instance when BSA converted the standard coil ignition C11 to magdyno for the military version for the India office, They swaped the carb for a horizontal type, simply because the standard carb wouldn't fit any more. Ron 

[cbranni 10]

You are right Ron the mag would foul the carb and of course there were many makes of bikes which had inlet manifold extensions.

Coln

[John Newman 0]

Carbs back from Martyn, absolutely brilliant job.

Coln, quick question  - I now have 4 cables to manage. I can get a two cable throttle set up, but the other two are choke?

Regards,

John

[Ron 20]

Forgive me John, I might be missing something here!  Does the carb sit in the standard vertical position, but with a vertical stud pattern? I initially thought you were talking about the horizontal carb like this one.......And why two carbs? Ron   

[matchlesswdg3 13]

4 cables?  Choke, throttle, timing and decompression?  Normally.

[Richard Farrant 35]

1 hour ago, matchlesswdg3 said:

4 cables?  Choke, throttle, timing and decompression?  Normally.

Hi Ferg,

I think John is referring to two choke cables and how to operate them together. From his initial post these are for a 1938 BMW project.

regards, Richard

[Ron 20]

Sometimes the typed word is not enough. All along I though he was talking about a 1938 BSA. Ron

[matchlesswdg3 13]

Blimey, Amals on a Beemer!  Its like Heinz Tomato Ketchup on a haggis!  Pass the smelling salts.......

[cbranni 10]

Hi John

To run two throttles or air slides from one cable you need a junction box, ie. one cable in two out, as per Amal part, link below.

http://amalcarb.co.uk/controls-cables/junction-boxes.html

Kind regards Colin

 

[John Newman 0]

Thanks Colin, that's exactly what I need.

I do not want to upset people but Amals (6/406 & 6/407) were the original equipment on the twin carb R12's - see picture. They are very expensive to buy (£2k+) and the 76/187's from the BSA 1938 350cc B.24, 25 and 26 are a vertical pattern bolt holes that fir the R12 cylinders. They came with box of bits that was the project and I'd like to believe someone swapped the old Amals (which I've been told were not very good) for a set of war time BSA carbs.

Does this make the bike a BSAMW?

[Ron 20]

Makes sense to me now John. Probably makes it a BSEAMER😏 Ron

[John Newman 0]

Very good Ron, I can at least get some parts for my BMW from the UK come Brexit!