Author Topic: 276 Carb spec for A7 plunger?  (Read 2460 times)

Offline RoadRunner

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276 Carb spec for A7 plunger?
« on: 10.11. 2010 23:17 »
Hi, can anyone provide the correct model and spec for my A7 plunger; I understand I need a Amal 276 with float chamber on the RHS - the real issue is that there appears to be two types; one with a vertical float chamber and one with it off set by 7 degees. The cylinder head single inlet is 15/16th which does rise fractionally therefore I'm assuming I require the off set carb?

But I want to be sure before purchasing since I appear to building up a stock of parts that 'should' or 'nearly fit' or that belong to someone else bike much to someones annoyance! ;)
Cheers in anticipation. *smile*
RR

Offline a10 gf

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Re: 276 Carb spec for A7 plunger?
« Reply #1 on: 11.11. 2010 08:00 »
Try http://www.surreycycles.com/

Just a detail, with my carb with rhs float, I got flooding when bike is on side stand (quite low angle on my bike), have tried many a remedy without luck. Reverted to a carb with lhs float.


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A10 GF '53 My A10 website
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Offline RoadRunner

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Re: 276 Carb spec for A7 plunger?
« Reply #2 on: 11.11. 2010 08:32 »
Hi A10gf,
Thanks for the info but is yours a plunger?
Problem with mine is: tried fitting a 376 mono with the float chamber on the left (Amal don't make a RHS one) and this fouls the air filter/battery box so is usable?

Mine also is fairly low when on the side stand.

Will keep you informed on things progress,
RR

Offline Beezageezauk

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Re: 276 Carb spec for A7 plunger?
« Reply #3 on: 11.11. 2010 11:33 »
Hey up RR.

The 276 carb for the 1951/53 A7 is listed as 276EU/1DB. 

The 276EU is a carb with 15/16 bore, a 4/061-140 main jet, a 4/061-107 needle jet, needle at number 3 position, 6/0524 throttle valve and a 1DB float chamber.

The 1DB float chamber has a standard arm and is mounted on the right hand side at 7 degrees.  It has a bottom feed with a banjo connection.

Hope this helps.

Beezageezauk.

Offline RoadRunner

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Re: 276 Carb spec for A7 plunger?
« Reply #4 on: 11.11. 2010 13:22 »
Hi Beezageezauk and many thanks for the comprehensive reply - most helpful *smile*
I've got the Beezer manual which lists the various carbs but doesn't mention the 7 degree tilt option - having bought a 376 on someone else's advice and found it doesn't fit (like many of my other purchases) I didn't really won't to plod out more cash on another ornament for the mantle piece! But you've confirmed what I've read and discussed elsewhere which is fantastic - now time to place that order for an early Xmas pressie!

Should be breathing life into the old girl again soon once I get the carb.  wink2

Many thanks Beezageezauk - your reply is much appreciated as is A10gf's.

RR

Offline ebsbury

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Re: 276 Carb spec for A7 plunger?
« Reply #5 on: 11.11. 2010 18:37 »
If you're in the UK ring Amal and them to send you their free catalogue which contains the carburetter specifications for all Post War bikes with Amal carbs. They'll send it worldwide for £3.00.

http://www.amalcarb.co.uk/contact.aspx

Offline marathonpaul

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Re: 276 Carb spec for A7 plunger?
« Reply #6 on: 11.08. 2013 15:20 »
Old topic, but guess what I found on a 48 Triumph, a 276EU/1DB.....

Since the Triumph needs a correct carb, this one will be for sale.

Ping me if you need this one.

Paul (marathonpaulx AT Yahoo)

63 RGS
58 DBD
38 R71
29 R52

Offline RoadRunner

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Re: 276 Carb spec for A7 plunger?
« Reply #7 on: 11.08. 2013 19:10 »
Cheers MarathonPaul,

I did indeed get a early Xmas present from Mr Amal - after a bit of juggling with different tops and more dosh I finally got one to fit and work.  Problems mainly due to my lack of knowledge and assumptions!!! Doh.

But the bike is now insured & taxed and sort of running, but free time has disappeared due to new job and she's sitting there fairly lonely but still looking pretty.  Wrestling with the old thought of 'do I sell her' or wait to find time to ride my longstanding stead?  But only I can answer that one, ummmm......

But thanks for your offer.
Dodger