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Austinsevenfriends
Up draft for side draft - Printable Version

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Up draft for side draft - johndagnall - 12-08-2024

I have a side draft manifold and Zenith 26VA carburettor in good condition on my 1932 RN which I am trying to make as original as possible.

Would anyone have an updraft inlet and exhaust manifold and a Zenith 22FZ carburettor that they would like to preferably swap or sell?

RE: Up draft for side draft - AustinWood - 12-08-2024

The exhaust downpipe is different as well.

RE: Up draft for side draft - Hugh Barnes - 12-08-2024

As the throttle cross shaft may be (on your car). They are different for the updraft and sidedraft carbs...

RE: Up draft for side draft - johndagnall - 12-08-2024

Understood, I am restoring the RN, what it has now is a bodge so be good to get it correct.

RE: Up draft for side draft - Ian Williams - 12-08-2024

I expect that Tony Betts would have all the parts you need on the shelf.

RE: Up draft for side draft - johndagnall - 13-08-2024

I'll give Tony a try - thanks

RE: Up draft for side draft - Ruairidh Dunford - 13-08-2024

Steve Hodgson normally carries a stock of fully refurbished 22FZ carbs.

You can get him on: 07813 117474

RE: Up draft for side draft - Dave Mann - 13-08-2024

When fitting a side draught carburetor it isn't necessary to change the accelerator cross shaft. The RN cross shaft is straight in the middle whilst the later one is cranked over the flywheel.

RE: Up draft for side draft - Hugh Barnes - 13-08-2024

But the operating arms are canted at quite a different angle, Dave. That has been my recent experience with helping a pal with a side draft zenith fitted to an RM that didn't have quite enough puff.Turned out the throttle wasn;t opening sufficiently with the original cross shaft..

RE: Up draft for side draft - Dave Mann - 14-08-2024

I live and learn, I've been swapping 22FZB, 26Va and 24T2 carburetors with gay abandon for the last 62 years with no problems connecting to the cross shaft on 3 RNs.