Fuel problem?
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#1632116
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My mk1 cabriolet has suddenly started to feel like it wants to cut out when foot down going up hills, almost feels like it's kangarooing if that makes sense?
It has a brand new Weber carb which has been tuned and had been running well for months. Typically it's started on one of nicest days of year!
Any ideas welcome, thank you,
Rachel
Posted
Local Hero
On the drive
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Caster 93 clipper JH Green cabby
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Golf mk1 owner's club on Spotify
Mk1 golf owners club playlist: Golf mk1 owner's club playlist - YouTube
T25 Diesel…sameoldblueshiŁ (currently under resto)
Rocco gt2….1990 secret 2…(currently under resto)
Mk4 99 1.8t indigo blue Gti with 43k miles
Caster 93 clipper JH Green cabby
Snowy 91 GTi White cabby( sat waiting for inspiration)
Myvalver 89 GTi Grey mk2 16v
Yuppy Flu 91 GTi Flash Red Sportline
Golf mk1 owner's club on Spotify
Mk1 golf owners club playlist: Golf mk1 owner's club playlist - YouTube
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Rachel
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Local Hero
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Thanks for your response. It was Jim Parks in South Yorkshire. Not sure about what he did but it's been running fine for months until today. Was a daily driver until Covid-19 then weekly…
Rachel
Posted
Local Hero
I'd say its either a partial blockage in the fuel system, or (unlikely though) the mechanical pump not working properly any more.
Typically on carb cars they have an inline filter, normally in the engine bay right hand side near the carb itself. Also there will (should) be a fine gauze in the fuel inlet of the carb itself. Either of these could be blocked with something. If not, then its possible a particle has made it into a jet in the carb, eg if something got into the main jet but didn't affect the idle or progressive, then it would affect 3/4 to full throttle. Similarly if the accel pump jet was blocked, the car would start hesitating on initially pressing the throttle but run normally in other situations.
Mech pump is easy to test - they normally pump far more fuel than is needed, and internally regulate according to the demand of the carb (float pin controls it). Take the fuel line off the carb, put in a jam jar and turn it over a few times on the starter, you'll get a good idea if its working okay.
Posted
Local Hero
Do you have a standard air box or air filter stuck on the carb type set up?
1988 Mk1 Golf GTi Cabriolet 1.8cc DX, K-jet. Daily drive. 317,000 miles and counting
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
1978 Mk1 Scirocco GLS 1.6cc FR, Webber carb. Weekend toy.
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Well, after (I thought) finally having this problem fixed around 6 months ago (yes it took that long), it's back! I could go into all the ins and outs and what's been done but it would be War and Peace.
So, could anyone recommend an expert in fuel systems so I can hopefully solve this once and for all? Based in Sheffield but happy to ship the damn thing off somewhere if confident they would sort it.
Many thanks,
Rachel
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