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 Rapier series !!!a Zenith Carb
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Royston

United Kingdom
48 Posts

Posted - 27 Jan 2016 :  18:25:49  Show Profile  Reply with Quote
Im currently renovating the twin zenith 36WIA-3 carbs C1763 and will be needing a few gaskets, any advice where to obtain them without spending £32 each for a few pieces of gasket paper from Zenith ?
I also need some heater air duct to fit between Smith's heater and dashboard, as mine burnt recently !!! ( Carburettor fire ! )
I've joined the Owners Club but yet to receive any notification, I wonder if they are available via member's spares.

bigt80

United Kingdom
1052 Posts

Posted - 06 Feb 2016 :  19:51:35  Show Profile  Reply with Quote
Hello Royston: firstly did check club records and your membership has been processed: you should have had a joiners pack sent out by now - have you had it? If not can chase up for you.
Re Zenith: the service pack you need is ZSK60 available from Burlen Services of Salisbury, but they may be that expansive like you quote, as I've just paid £29.29 each for Stromberg CD150 kit.
Don't think club does them, but I may have an odd set with bits and pieces from some kits in if you get desperate: not looking for much for it, but got to find it first! Cheers. G
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Royston

United Kingdom
48 Posts

Posted - 09 Feb 2016 :  08:18:49  Show Profile  Reply with Quote
Hi G,
still nothing from membership secretary, so a chase up would be appreciated, Thanks.

Ive searched the Workshop manual to find out what the two pipes are that come from the inlet manifolds and hang down the side of the engine, I have a petrol leakage from them when car is stopped ?
Are they something to do with crankcase breather perhaps ?
Royston
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pruyter

Netherlands
323 Posts

Posted - 09 Feb 2016 :  09:32:50  Show Profile  Reply with Quote
Hi Royston,

The pipes you are referring to are drain pipes, although there should only be one pipe. It is not strange that some fuel is coming out of the drainpipe after the engine has stopped running.
It has nothing to do with the breathing system of the engine. On the early Rapiers the engine breathing was taken care of by help of a road tube which can be seen at the side of the engine.

Regards,

Peter

Edited by - pruyter on 09 Feb 2016 09:34:40
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bigt80

United Kingdom
1052 Posts

Posted - 09 Feb 2016 :  17:02:59  Show Profile  Reply with Quote
Yes, I will do that right away. Apologies on behalf of the club. Will be back in touch. :-) G

quote:
Originally posted by Royston

Hi G,
still nothing from membership secretary, so a chase up would be appreciated, Thanks.
Royston

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Royston

United Kingdom
48 Posts

Posted - 09 Feb 2016 :  17:37:12  Show Profile  Reply with Quote
Great thanks for info, that puts my mind to rest !
( I really cannot find any mention of them in my workshop manual )
It is unfortunate though as one exhaust manifold stud has lost its thread and badly corroded and the exhaust centre could not weld on a new stud for fear of setting engine on fire as there were a few drips of petrol coming from the pipes.
Out of interest, do these pipes not also allow air to enter through the vacuum of inlet ports and mess up the air fuel mix ?
Ive just fitted two new Zenith WIA and am currently balancing and adjusting them so have carbs on my mind !
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pruyter

Netherlands
323 Posts

Posted - 09 Feb 2016 :  21:09:04  Show Profile  Reply with Quote
The drain pipes don't affect the vacuum in the inlet manifold,because eacht drain pipe contains a ball which operates as a one way valve. When the engine is running the vacuum in the inlet manifold makes that the little ball rises to its seat and so the pipe is closed. When the engine stops the ball falls free from its seat and making it possible to get rid of the overlow of petrol from the carburettor.
It is a conservative construction that was later on deleted.

Edited by - pruyter on 10 Feb 2016 09:28:10
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bigt80

United Kingdom
1052 Posts

Posted - 10 Feb 2016 :  14:44:25  Show Profile  Reply with Quote
Sent you a PM Royston.
quote:
Originally posted by Royston

Hi G,
still nothing from membership secretary, so a chase up would be appreciated, Thanks.
Royston

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