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Post by John on Feb 16, 2017 17:56:47 GMT
Just purchased a bug and drove it for the first time today and after approx 10 miles it stopped when slowing for traffic.
would not start for 10-15 mins Finally started but ran like a bag of nails but got home.
checked electrics and fuel all seemed OK. Started again later all ok bug ticked over, so went for a run all ok for about the
same distance just turning into the drive and a repeat of earlier happened.
Any advice please
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Post by ady on Feb 16, 2017 19:12:09 GMT
Hi John
Welcome to the world of Bug ownership and welcome to this forum.
The dificulty in hot starting is a common problem. But fear not there is a common solution too. The normal teckneque is to hold the throttel flat to the floor and turn the starter, the Bug should fire up if all else is correct. The problem comes from a combination of the carb sitting above the exhaust manifold and modern fuel not being as good at getting hot as in the good old days. There are ways to remove the issue compleatly such as fitting an electric fuel pump.
The stalling after 10-15 mins could be many things, but I would start with fine tuning the carb settings on this one.
Running like a bag of nails again could be many things.
On the ignition side check;
Condition of points
Condensor
Rotor arm
Cap and ignition leads
On the Fuel side;
Check the ruber pipes, if they look old replace them
Take the top off the carb and clean out any muck, blow through all the jets and drillings with carb cleaner.
Any fuel filter in the line is clear
Fuel pump, probably not your issue as it would cause more problems inder load.
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Post by redbug on Feb 16, 2017 19:50:16 GMT
I had the very same problem when I got mine, turned out to be the coil. It died of old age, fine for 5 miles then stopped, OK after 10 minutes and repeat.
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Post by malteselion on Feb 17, 2017 0:52:30 GMT
Fuel evaporating over a hot engine simple fix. Wrap exhaust heat insulating tape around your fuel pipes, if it stops heat getting out it should stop heat getting in. Seems to do the trick on my bug and as you know I have been through some temperatures on my journeys. Disclaimer, I take no responsibility should it not work on your bug  |
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Post by vannin on Feb 18, 2017 15:16:18 GMT
all good suggestions or just make sure you don't go further than 10 miles.
joking aside where are you in the country John ? as there could well be a
local bug owner you aren't aware of that could assist with your bug
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Post by ayrbugger on Feb 20, 2017 11:19:48 GMT
Hi,
Had the same problem with my Citroen Special when cruising around France, it was mis-fire at lights then would run ok.
Then it died at the next lights...started to pull the thing apart as I was on a deadline...then the penny dropped, it was the coil. Fortunately I had a spare with me change it and rebuilt the rest of ignition and it started first time...ran for four years before engine overhaul. As it is a known problem I was prepared, but again when confronted with trees you can't see the wood.
Change the coil...it sparks twice every rev so it will be well gone.
Bill
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Post by heartnut on Feb 26, 2017 10:20:03 GMT
I had this problem many years ago when it would run fine for miles and then then just die. Then it would restart and run perfectly after a few minutes wait until doing it again. Piece of dirt in the carb? Coil windings deteriorating? Fuel pump not delivering? I replaced everything or stripped it numerous times. Each time it would seem to run fine and then... die.
The programme of changing things ran on into less likely areas, out of desperation until I .... changed the HT lead. That was it. It worked enough to start the car and run at lower speeds, but somehow resistance built up in it for some unknown reason until it would not deliver the current. Once discharged it would seem to work again. Maybe that's your problem, John.
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Post by John. on Mar 20, 2017 14:45:48 GMT
Thanks for all your suggestions. I fitted a heat shield and wrapped the fuel supply pipe but still had the problem. So checked the ingnition
side. It had been fitted wth electronic ignition and all appeared to work well under test.So once again went for a run and again after 20 mins
the Bug juddered to a halt after 10mins letting it cool it started and ran well got home and fitted a new coil that had just arrived in the post
from Accuspark (their standard sports coil) went for another run no problems no stopping and more engine response. Tick over was also smoother.
Obviously the old coil was breaking down when the engin compartment got to a certain temperature.
Problems solved.
Thanks for all your help. Best regards John.
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