POST 1 / ORIGINAL POSTEROriginal post
New to resto projects and know little about carbs but I have noticed these zeniths look to be missing the accelerator pumps? Holes look to be blocked up (on a 2.2). Any advise would be appreciated
5 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHZenith Question
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1 matching discussions · 5 captured posts examined · 1 partial discussions
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5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
- Porsche Forum Australia: 1 discussions
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POST 2Original post
Aren't the accelerator pumps on the other side of these carburettors? Can you show a photo of the other side to confirm one way or the other?
POST 3 / ORIGINAL POSTEROriginal post
Thanks Peter, I’ve added photo of ‘inside’. Ok so what’s the component normally on the outside? That’s the bit they seem to be missing, I’ve added photo, cheers
POST 4Original post
Bro The device you have circled in red is an auxilary air/enrichment device to reduce unburnt hydrocarbon emissions when the throttle is abruptly closed at higher rpm's. These devices weren't fitted to all carbs as it depended on the emission standards at the time and place of vehicle delivery. The photo below shows the accelerator pumps. The long rod is connected to the throttle. As the throttle is opened, this rod twists and the 3 little tabs welded to the rod push on 3 separate diaphragms that then inject extra fuel into their respective throttle bores to avoid mixture lean out that would otherwise occur as the throttle is opened.
POST 5 / ORIGINAL POSTEROriginal post
Thanks Peter, much appreciated
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