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posted on April 23rd, 2004 at 02:41 AM
type 4 fuel starve
OK, I've just been sat on the harbour bridge with the hazards on and think maybe i've been living with fuel starve in my 76 2ltr kombi for too
long.
if anyone has experienced this problem, and solved it! would love to know
so far.... I've fitted new coil, distributer, fuel pump (and rod), fuel filters.
the motor can be cold, hot, or anywhere in between. it can happen up hill, or on the flat. mostly happens at speed, but not necessarily. i can drive
for hours fine or just a few minutes before it stops. it loses all power, but will just about tick over if i pump the gas then dies. I turn it off for
a few minutes, fire it up and I'm off...... maybe for an hour or maybe a minute.
I've disconnected the auto chokes, john muir said i dont need them, but problem is now worse when cold.
I think it must be fuel starve, but have had pressure checked to be ok (or at least when it's behaving)
I think the tank is prob too young to have rust in it, any ideas? PLEASE
steve
aggri1
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posted on April 23rd, 2004 at 09:28 AM
Oh man, I am having similar issues, with similar symptoms. I don't have an answer, sorry. Have you noticed any correlation between occurence of the
problem and filling fuel? For me, every time I get fuel, after a minute or three, guaranteed, she plays up.
Yours being a 76, is it fuel injected then? Mine's an 1800 carburetted one.
I'll let you know here if I discover anything...
Aurel
KruizinKombi
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posted on April 23rd, 2004 at 03:34 PM
The tank doesn't necessarily need to be rusty.... you may have some sediment in it, or maybe something larger is blocking the hole, or maybe even
water in the tank. Odd that it restarts ok though, they don't normally unblock themselves, although smaller sediment blockages in the carby can
sometimes be blown through when the motor is working hard enough - not what you've described.
Obviously, if the chokes aren't the problem, you may want to consider reconnecting them.
Is your bus FI or carby? A lot of '76 2lt models were FI, but have since been converted to carby (because FI was considered by many mechanics to be a
black art back then). If yours is one of these, does it still have the FI tank, pump, etc?
The only time I've suffered the symptoms you've described was when my coil was faulty and was overheating, but it took longer than a minute to cool
down again.
I'm at a loss.... got any more info?
Aurel, yours sounds like you have sediment in the tank which gets stirred up every time you refill. You probably need to drain and clean the tank. Not
much fun, but I expect it would fix the problem.
Kruizin Kol
Swampy
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posted on April 24th, 2004 at 06:34 PM
thanks guys
it's a dual carbie model with mechanical fuel pump.
it happenned again today, but worse. wouldn't restart. I had no fuel at the carbies, so I took the side plate off the fuel pump and my girlfriend
turned the engine over by hand (great chick!).
I'm not sure if I should see the diaphram go in and out (not my girlfriends), but I didn't. after much head scratching, I put it back together and
started it. Runs even worse now, just about made it home.
Doesn't seem to make much difference if I've just filled up with fuel, but I think you maybe right about something in the tank, which would get
sucked to the hole by fuel pump (although I dont know how it would get in there if it's not sediment). Damn, I know the motors got to come out for
that job. Can't live with that ghost any longer.
cheers
Swampy
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posted on April 26th, 2004 at 02:25 PM
Quote:
Originally
posted by Swampy
...
Damn, I know the motors got to come out for that job.
...
Swampy
Thanks kruizinK for your suggestion. Makes sense really, although I think I'm in denial, searching for alternative solutions.
Hey Swampy, where are you? Wanna have a clean-the-tank day?
Cheers,
Aurel
Swampy
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posted on May 3rd, 2004 at 11:09 PM
I know that feeling aurel
little too far, I'm in sydney. If you havnt done yours by the time i get aroun to it, I'll post you some tips!
helbus
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posted on May 3rd, 2004 at 11:20 PM
I had a friend who spent about $1200 on her Datsun BlueTurd getting an intermittent fuel problem fixed. After a mechanic had changed her carby, dizzy,
coil, fuel pump, fuel lines, alternator, starter and just about anything.
She then changed mechanics and when she described very similar problem to yours he said okey dokey lets have a look in da tank.
It cost her less than $100 to have it taken out, emptied, cleaned etc and they found a top pull seal foil thing off an additive container. You know
the ones you peel off that keep the freshness in. It was going up against the fuel outlet and as long as you could keep driving or if you cranked the
motor the sucker would stay put.
Needless to say she got rid of the Turd and got a Beetle.
posted on April 23rd, 2004 at 02:41 AM
