Re: cutting out

["Ewan Hopkins" <ewanhopkins@hotmail.com>]

When you say it's cutting out, do you mean instant cutout or does it start 
by hesitating when you try to accelerate and progress to losing power / 
stuttering / cutting-out at idle. If it's the latter, sounds like fuel 
starvation probably caused by crud in the tank. COuld also be a weak fuel 
pump - I think the haynes manual gives specs for what sort of fuel flow you 
should get if you disconnect the return line and measure the output. Was the 
filter you removed particularly dirty?  Have you checked the condition of 
the fuel filler neck - easily visible in the rear wheel arch; worth also 
shining a torch down the inside of the filler.  Next port of call would be 
to remove the fuel lifter from the tank and check the pickup for flakes of 
rust / crud clogging it. If you remove the rear seat and unscrew the round 
black plate you will see two pipes & a 2-pin plug. IF you disconnect these 
and then use a blunt screwdriver to turn the plastic 'plug' until it feels 
slack - should be about 1/8th - 1/4 turn and you can lift out the whole 
unit. The pick-up is a length of plastic pipe with a slightly bulbous end 
which has small holes to let fuel through. You could cut slots with a 
hacksaw to ease fuel flow, as I did.  I'd definitely check the fuel pump 
first to eliminate it before starting on the tank.
Another thing to consider is carburettor icing - does the warm air flap in 
the air intake work? If it is stuck shut then you may get carb icing, even 
in relatively warm weather. I don't know if super is maybe less prone to 
icing but it's worth considering. If it takes a good few miles (5-10) before 
cutting out then that could be the cause. The solution is to permanently jam 
it half open - won't cause any problems even during hot summer weather.

HTH,

Ewan Hopkins...

'85 Storm 2.0
'86 GT 1.8
'87 GT 1.6



>From: "Sweet, Christian" <Christian.Sweet@granadamedia.com>
>To: "'scirocco-l@scirocco.org'" <scirocco-l@scirocco.org>
>Subject: cutting out
>Date: Tue, 2 Oct 2001 08:58:01 -0000
>
>hello,
>
>I'm new to the board, and from Manchester, England.
>
>I have a 1.8 carb 1989 scirocco gt, had it three years
>and ever since i bought it it's had the usual cutting out
>problem. Mine does it at around 75-80mph and gets worse
>if driven all day, (goes down to 60).
>Now i just did a bit of a service the other day, and changed
>the fuel filter but was given a fuel filter that said on the packet
>"up to 1600cc engines". Now the strange thing was, it was the same
>one that was in my car, so i took it back and the guy in the
>shop said it was the one listed but gave me a bigger one
>anyway.
>I fitted it and at the same time changed my fuel to the more
>expensive super unleaded petrol and amazingly it cured the
>problem .............................................for about 1hour then
>and ever since i can get to 90-95 before it starts cutting out.
>Now because I did make two changes I'm not sure which one
>Semi-cured my problem, any ideas?
>
>
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