Zenith carb - ideas please

[Chris KC]

Let's just say I've never seen one for sale in nearly 40 years of owning a Nippy

[JonE]

Well if its 21mm, then fine!
http://www.eastprestonbusiness.co.uk/smh_services.html
He rebushed a 1" SU for me and I believe he keeps Ruairidh's rarer carbs going, from other forum posts I've read...
(He's also advised me not to fiddle unnecessarily with other things I've asked him about)

[JonE]

Anyone have a list for what c.1127 Zenith VM5 is? https://www.ebay.co.uk/itm/233013972932?ul_noapp=true
I suspect this may be a Speedy-ish 25mm, and will add it to the Nippy site list... but would like to know!

[Zetomagneto]

I have very little experience with carburettors, other than doing the basics, but having decided to rebuild the engine with a new crank and a less aggressive camshaft I am very keen to ensure that the original ancillaries remain in situ and fully functional. Not even sure if the 30VEI is that great a carb, but I'm a conservationist at heart, so I want to get it working as well as I can. I agree completely it is much better I leave it alone rather than mess it up, but I had hoped one of the greybeards would say it was an easy fix - here's how to do it.

I would suggest as others have, leave it alone not worth the risk on a carb that is virtually irreplaceable.
It is only a pivot pin and still looks quite up to the job.

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Anyone have a list for what c.1127 Zenith VM5 is? https://www.ebay.co.uk/itm/233013972932?ul_noapp=true
I suspect this may be a Speedy-ish 25mm, and will add it to the Nippy site list... but would like to know!

No Jon, not Speedy, my Nippy with a Speedy engine in it had the VEI carb.The listing says it's for an A40!

[dickie65]

The VM 5 is a newer carb from the 50's 60's even the Austin A 40 and A 30 used them
They work quite well on a Nippy manifold but watch out for the choke size I have one with a 19mm choke.

[JonE]

Yes, I realise it's for an A40, but all the applications are really down to choke size... and you can alter jets to suit.

The 19mm c.855 was fitted as a factory replacement for Nippy VE1s in the 50s.

I can't find a listing for a c.1127 on oldengine.org site, which is why I posted here for someone who might know the choke size.

If its 19 or 23 or 25 choke, then its a potentially good economic dd carb for someone with an incomplete pile of Nippy bits.

[Austin Carr]

Burlen stock them, so it might be worth asking them if, no one on the forum knows the choke size.

http://burlen.co.uk/c1127-carburettor.html