Help please update

Alan · 06-07-11, 07:17 PM

Evening all. I asked for help about a month ago regarding this problem.
The 84 Coupe gt 5s will start, will die unless i keep pumping the gas. Have changed the
dizzy cap, ht leads, plugs, by passed the fuel filter, just come in from changing the fuel pump.
I think i've exhausted the minor stuff. Can the carb be tested or do i bite the bullet and
get a Webber. I would like it to be ready for AITP. I never used to have gray hair.

Hanuman · 06-07-11, 07:29 PM

Does it run normally, other than failing to idle correctly?
By pumping the gas, do you mean literally pushing the accelerator pedal up and down, or do you mean holding the pedal in a partial open position? It's important.

Is the carb clean? Worth inspecting, and maybe even removing, and cleaning if required.

Alan · 06-07-11, 07:34 PM

I have to pump it up and down. if i flat the the peddle to the floor it will die.
I have cleaned the carb jets. Is there anything else i can do if i take the carb out?

Hanuman · 06-07-11, 08:29 PM

Lets forget about pumping the peddle up and down.
That description leaves one bit unanswered-

If you start the engine, Will it idle if you keep steady, gentle pressure on the throttle (enough to just open the throttle a little bit?)

Alan · 06-07-11, 08:34 PM

No the engine only keeps going by pumping up and down quickly.

saint001 · 06-07-11, 08:35 PM

does it have an isv if so clean it or replace it .

saint001 · 06-07-11, 08:38 PM

also check your fuel system for leaks,very obvious but always overlooked .

Alan · 06-07-11, 08:38 PM

Hanuman · 06-07-11, 08:40 PM

So, to summarise a little-

The engine will start
It will run only if the throttle is repeatedly opened

It will stop if the throttle is opened and held open
it will stop if the throttle is held steady in any position?

Isimmo · 06-07-11, 08:42 PM

Quote:

Originally Posted by Alan

isv

If you've got a carb, it's not on there.

06-07-11, 07:29 PM	#2
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,006	Does it run normally, other than failing to idle correctly? By pumping the gas, do you mean literally pushing the accelerator pedal up and down, or do you mean holding the pedal in a partial open position? It's important. Is the carb clean? Worth inspecting, and maybe even removing, and cleaning if required. __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor

06-07-11, 08:29 PM	#4
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,006	Lets forget about pumping the peddle up and down. That description leaves one bit unanswered- If you start the engine, Will it idle if you keep steady, gentle pressure on the throttle (enough to just open the throttle a little bit?) __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor

06-07-11, 08:40 PM	#9
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,006	So, to summarise a little- The engine will start It will run only if the throttle is repeatedly opened It will stop if the throttle is opened and held open it will stop if the throttle is held steady in any position? __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor

06-07-11, 07:34 PM	#3
Alan Grown up member Join Date: Aug 2010 Location: Cambridge Posts: 86	I have to pump it up and down. if i flat the the peddle to the floor it will die. I have cleaned the carb jets. Is there anything else i can do if i take the carb out?

06-07-11, 08:34 PM	#5
Alan Grown up member Join Date: Aug 2010 Location: Cambridge Posts: 86	No the engine only keeps going by pumping up and down quickly.

06-07-11, 08:35 PM	#6
saint001 Grown up member Join Date: Aug 2009 Location: devon Posts: 237	does it have an isv if so clean it or replace it .

06-07-11, 08:38 PM	#7
saint001 Grown up member Join Date: Aug 2009 Location: devon Posts: 237	also check your fuel system for leaks,very obvious but always overlooked .