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#Post#: 101415--------------------------------------------------
Re: S3 petrol running issues
DIR By: DarrenH
Date: June 17, 2016, 9:11 am
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sound advice on there.
one small point is misleading regards the weber being
restrictive. yes at face value it has a smaller barrel
(signified by the figure in the names) but crucially it has a
larger venturi than all the other single carbs. i.e the
narrowing in the middle of the carb, the bit actually hindering
flow.
for this reason it actually out flows (CFM) all the other single
carbs by a large margin, and you can get off the shelf jets,
venturis, for potential tuning
#Post#: 101416--------------------------------------------------
Re: S3 petrol running issues
DIR By: CountyDorset
Date: June 17, 2016, 1:53 pm
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To be honest, since I've put all new ignition components on
(plus changed points for electronic pickup), the old girl is
rather brisk. I have full reason to believe that the 35k
mileage is genuine. I haven't compression tested it yet but
reckon it'll be good.
Will keep Weber if it will suit the ported Turner's head that's
destined for it. I'll get it cleaned and/or inspected...
#Post#: 101423--------------------------------------------------
Re: S3 petrol running issues
DIR By: CountyDorset
Date: June 21, 2016, 9:35 am
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Turns out most of the securing screws on the carb were loose.
Tightened them and it runs really well now. Funny that
:smilewide:
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