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golf auto manual choke help please

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loss of power

ho folks–happy damp banky hol
golf mk 1 cab 1988–had it innumerable times to garage–no real joy
auto and manual choke model–i know i know
sudden surge down and lack of power–and helpful clues fellow golfers?
now be gentle–i think getting the hood down is a mechanical achievement
thanks people

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What's the garage diagnosis. Is your accelerator cable undamaged. Are you running a Weber.?

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This has been going on ages Vic
Twice I've taken it back in and it's run fine for them
They be said dirty petrol and I once had to put in E10
It ran 5 miles perfectly on last Friday on a full tank n suddenly power loss again
New battery n new something inside rad

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What carb is it

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Think it's Weber
Seems the obvious problem to me but it's run well when garage guys have taken it out

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Not a good idea to use E10 petrol as it will rot your rubber fuel hoses unless you changed them to take the higher ethanol petrol, rubbers in the carb can also suffer..
Lots of info on using E10 in older cars on the web and stabilisers you can buy to add to the fuel.

I use super unleaded which is E5 in both my old VWs 

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.

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Thanks for that
It died on me the first time I
Used it after being in hospital for 3 weeks with my son

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Back to your problem….

When was the fuel filter last changed?

Have you tried blowing down the fuel lines into the fuel tank, you should be able to blow down the fuel line feeding the engine (the one going into the fuel filter) with just your mouth and hear bubbles from the fuel tank.

Have you check the fuel filler neck, if you remove the fuel cap and shine a torch down there is there any holes or signs of rust on the inside?

Could be the fuel pick up inside the fuel tank is starting to get blocked with rust and grit, you have to remove the fuel pick up (access underneath the back seat) but if you have a white plastic top on the fuel pick up be very CAREFUL as they break easily and impossible to get a new one, you need to make something to slot into it and twist it to remove the fuel pickup and then you have have a good look inside the fuel tank.

Sometimes the Webber carb seems to suffer from to much fuel being returned to the fuel tank and restricting the fuel return can help (lots of info on here and online how to do this)
 

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.

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Great set of advice
I'm very appreciative

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Start by checking/replacing the fuel filter, the small plastic fuel filter is supposed to be changed every year.

You should have one like this

https://www.eurocarparts.com/p/bosch-fuel-filter-503440077

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.

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I had the same issue.

I solved it by putting a blocking off the fuel return line, have you tried that?

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thank you
i have sold the car
i appreciate all your help
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