Hugz wrote:The both look 2 5/8th" to me. Can you do a drawing showing the measurements so I can have a better understanding of your synopsis? Thanks ..
I actually do not know what to say to that Hugo........
While we're on the topic of SD's, I thought this video on youtube may be of some use to you Oyster - a very nice original SD with the stenciling still visible on the exhaust tube, and doesn't seem to have been played with too much...
And a very good guide, a pleasure to read.
Boyd.......do not just grab from Youtube and "Present"
Just saying is all....
B
I had previously seen that vid more than a year ago, and it crossed my mind while reading through this thread, and so just found it a posted it without re-watching it...
by headdownarseup » Tue Mar 22, 2016 5:27 am
"Little model 40's" should be fairly easy to work out from Jeremy's list already produced. Takes some careful reading i know.
SJM/SJP motors are already a work in progress with young Boyd. Keen to see how he's getting on with these.
Jon,
Well progress has been made; 6 full SJP entries, no SJM's yet... Am still figuring out how I can distinguish between transom bracket changes on the data list (everything else is figured out).
Certainly a work in progress; and as many people have stated, there were many thousands of SJPs & SJMs made, but it all comes down to how many people are willing to give the data of their motor.
Cheers
BP
Too many Seagulls to count now!
Member SOS, AOMCI,
President of AOMCI's WOOC chapter
Back to the carb BnC, all my AD's are the low version, I have not seen an example of the high one, clearly it was a different die. so was thebowl with the high lettering only fitted to the SD's and what of the bronze variant? do they also have lettering?
Couple of things to confirm making it easier to date carb variants
Could this be a throwback from something earlier i wonder! From a different amal carb perhaps?
They look more correct against the earlier type 46n's to me.
Slight change to the casting perhaps or different supplier maybe? They still fit together as normal.
Not trying to be too "anoraky" here Keith, but dont the brass/bronze float bowl covers have a hex-head fitting for un-screwing and tightening the top cover?
Mine has!
The ally ones just have a flat square section on the top as per your drawings.
Just putting this set of questions out there for you to ponder over.
How long was the all brass carb in production for? Are they more likely to be found on earlier motors instead of later motors, or would this be down to supply of materials at the time of production. Are there any ally ones that look like this. Quite different in the main body of the carb compared to later 46n's.
Do some of them have a brass float bowl too?
Has anybody got a spare that i can find a new home for
