[VicYouel]

Hi John,

I sent you a separate email on this yesterday...... have a 4 hole 76 block for you.

Vic

[John Dodimead]

Hi Vic
I am not sure you have my phone number?
John D

[VicYouel]

I have a whole box ful of AMAL 276 or 76 stuff ....... the blocks come in different bore sizes and many had a two digit number stamped on top.... largest was a 51 down through 45 and lowest I have seen is 39.  I'll have a look to see what I have.  It is all post 1933 and probably mostly post war though. I assume you need the 4 hole type block.

I will phone you next week.

Cheers

Vic

[John Dodimead]

Hi Vic

I have just checked out a friends 1927 Sunbeam 9 and it has a Brown and Barlow carb on it which more importantly is 1" bore. This means that somewhere between 1927 and 1933, which is the earliest documented date in the pre war Amal reference catalogue, the carb size on the 9s went from 1" to 1 1/32. I am happy now that my engine is correct albeit fitted with an incorrect 1" 276. I have a Type 6, brass body and only need the jet block etc. and brass float chamber and I can put things back to original which I would prefer. The float chamber might be a problem but if necessary I can use a 26 jet block or modify a 276 to suit by drilling the required holes. All the rest of the jets etc. are easily available. If you know of any Type 6 spares I would be grateful.

Thanks for your help

John Dodimead

[VicYouel]

I have just seen a recent letter from Burlen (www,burlen.co.uk) who manufacture Amal carbs. They state that the model 9 for 1931 uses the 6/011 which is a brass bodied 1 inch to fit a 1 1/8 stub. The model 90 used the 29/001 which was adopted for the 1932 Model 9.

[VicYouel]

My 1932/4 model 9 heads all use a 29....... internal bore of 1 3/32 which matches the stub bore. Outer of stub measures 1 1/4 inches.  My guess is that earlier model 9's use a smaller carb bur let's ee what that book I have purchased states.

Vic

I will measure up my 1932/4 head, stub etc to check dimensions....... have just purchased http://www.ebay.co.uk/itm/301617233912   to study so will check what that says.

I have a feeling the 29 carb may be too late a version. My current AMAL data only goes back to 1933.

Vic

[VicYouel]

I will measure up my 1932/4 head, stub etc to check dimensions....... have just purchased http://www.ebay.co.uk/itm/301617233912   to study so will check what that says.

I have a feeling the 29 carb may be too late a version. My current AMAL data only goes back to 1933.

Vic

[John Dodimead]

Bugger
I had it right first time
John d

[John Dodimead]

Hi all
My post should read 1 3/32 where I have typed 1 1/32
John D

[John Dodimead]

My 1930 model 9 is fitted with a 276 carb which is too late for the engine and only 1" diameter. It should be fitted with a 29/001 which is 1 3/32 diameter. The problem is that everything seems to fit properly. The inlet port bore immediately after the stub in the head  is precisely 1" diameter, the stub is 1" inside diameter which fits the carb perfectly.
The outside diameter of the stub is only 1.117" and the thread is 1.110"OD x 24 tpi so a 1 3/32 bore stub for a Type 29 carb could not be fitted. But there is no evidence of a bush being fitted to the head. Is it possible that a head from one of the 350 cc OHV engines has been fitted. ( would a 350 head fit a 500 engine). Or is it possible that a Model 9, 500cc engine could have left the factory with a Type 6, 1" bore carburettor.
I am mystified.

John D