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Triumph 3HW carburettor

Dear all,

My 1942 Triumph 3HW (contract number C13948) with matching numbers (frame number TL 31410, engine number 41410) was found with an Amal 275 B/1J carburettor.

Although the "Triumph Motor Cycle Replacement parts for 3HW Machines" that I have found (contract S2114, frame nos. TL 36918 to TL 41417) states 276 AD/1J as the correct carb, I strongly believe that this 275 is what was originally installed on my bike.

Does any Triumph 3HW owner has such a carb?

Is there anyone with a contract C13948 literature that can inform if the 275 carb is the right one for this contract's bikes?

Many thanks,

Kostas

IMG-7670

20181129-154700-HDR

email (option): ferrarakias@hotmail.com

Re: Triumph 3HW carburettor

Kostas, I don't know Triumphs, but the Amal listings show that the 275B/1J combination was fitted to the some Ariel W/NGs.

Re: Triumph 3HW carburettor

Hi Kostas,have got a drivers handbook from contract 294/C/13948,but it only gives maintenance tasks on the carburetter,also got a spares book from the same contract and have shown page twenty from it which gives some info.




Below is a page from one of the other five spares books (all later contracts) I have,which are all the same part numbers.

Re: Triumph 3HW carburettor

Steve S.
Hi Kostas,have got a drivers handbook from contract 294/C/13948,but it only gives maintenance tasks on the carburetter,also got a spares book from the same contract and have shown page twenty from it which gives some info.




Below is a page from one of the other five spares books (all later contracts) I have,which are all the same part numbers.
Steve,

Many thanks for your answer and all the trouble you went for uploading those pictures!

Do you own a 3HW?

Can I contact you off forum? Please email me!

Kostas

email (option): ferrarakias@hotmail.com

Re: Triumph 3HW carburettor

Kostas Amal lists your carby for 1940 to 1945 EX WD as 276AD/1J which has a one inch hole where the air goes in and also one inch hole where it fits onto the cylinder with a 150 main jet, 6/4 throttle slide, 107 needle jet and the 1J bowl which you have. The actual carby fitted at the moment being a 275B/1J was fitted as suggested to Ariel 1940 to 1945 350 OHV Model W/NG which has a 7/8 inch hole where the air goes in and where it fits onto the cylinder with a 120 main jet, 106 needle jet and 5/4 throttle slide and the same 1J bowl. You can use the same float bowl as it is the right one for both carbys but you are best to look for a 276 carby body complete as it will be the right one as a 275 is a bit small for your bike although it may have been fitted for years.

email (option): ukcarbsathotmail.com

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