The Marston Sunbeam Club & Register Forum

General Category => Technical Discussion Forum => Topic started by: ChrisF on February 09, 2016, 09:52:25 PM

Title: Model 8 carb jets
Post by: ChrisF on February 09, 2016, 09:52:25 PM
  I am trying to rebuild a 1935 Model 8 from several boxes of bits. The carb' that came with it is a 276 (marked 276/012B or could be D, difficult to read the letter.) It has a 6/3 slide but there is no main jet or needle jet inside. Could anyone advise me what main & needle jet I should use to get me going?
Thanks
ChrisF
Title: Re: Model 8 carb jets
Post by: Greybeard on February 09, 2016, 10:07:45 PM
According to my Amal reference catalogue for pre war models, the Model 8 (1933-37) should have a 76/001 carb, 15/16th internal bore, a 4/042-140 main jet, a 4/061-106 needle jet, needle position 3, a 6/0524 throttle valve and float chamber 64/079.
I don't know whether this helps or not, but I've found the folk at Burlen pretty helpful.
https://burlen.co.uk/

Steve
Title: Re: Model 8 carb jets
Post by: ChrisF on February 10, 2016, 09:40:41 PM
Thanks for the info Steve,
                                          I will buy from Burlen as I have used them in the past. I thought I would try the forum first as the 'make & model' search section of their website does not go back as far as a Model 8. I guess jets & slide should be the same spec for a 76 as a 276. I will give them a call.
Cheers
Chris
Title: Re: Model 8 carb jets
Post by: phutton on February 11, 2016, 11:29:49 PM
Hi Chris,

If you ask Burlen, they can supply a 1933-39 supplement for their spec book, which does cover all the Sunbeam models for those years.

Paul