nick205
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| posted on 13/9/06 at 08:31 PM |
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Pinto with Weber 32/36DGV fuelling problem?
Some advice please chaps?
Set-up as follows...
2.0 Pinto with standard mechanical fuel pump feeding a Weber 32/36 DGV (manual choke) carb. The carb was previously fitted to a 2.0 Pinto (Capri),
but has been rebuilt with new gaskets, seals, diaphragm and power valve, but jet sizes are unknown. I don't have a fuel return or pressure
regulator in the fuel system.
Engine will start easily and run smoothly for a few minutes before dying. I recently replaced a dodgy coil which I thought was the problem, but I now
think the engine may be flooding. If left for 2-3 mins after it dies the engine re-starts fairly easily, but then dies again.
Could the carb be flooding the engine? Should I look at fitting a fuel pressure regulator between the pump and carb?
Any help appreciated - booking SVA soon!
Cheers
Nick
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gary gsx
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| posted on 13/9/06 at 08:37 PM |
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Sounds like fuel starvation you may have some crap in the float valve or maybe in correct setting????? just a thought 
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Peteff
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| posted on 13/9/06 at 08:46 PM |
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Have you got a return pipe to the fuel tank? The pump doesn't stop when the float is full and if it beats the needle valve it will flood. I had
this problem and had to install the swirl pot from the Sierra with a return to cure it.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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nick205
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| posted on 13/9/06 at 08:46 PM |
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could be I guess - I have a spare fuel filter so I'll replace that to take it out of the equation.
The floats seemed to be moving freely when I rebuilt the carb, I guess I'll have to take it apart again and check 
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nick205
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| posted on 13/9/06 at 09:02 PM |
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Will go and have a look at the plugs!
How do I check/set the float height?
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nick205
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| posted on 13/9/06 at 09:07 PM |
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cheers!
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bob
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| posted on 13/9/06 at 09:38 PM |
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Hello Nick
I had the same problem early on and found it to be the fast idle,there is a screw that advances the auto choke revs just behind the auto choke that i
turned back a few turns and it cured the stutter and stop 
Might be completely different but it worked for me
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nick205
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| posted on 14/9/06 at 08:25 AM |
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robocog - thanks for the link and advice, something for the weekend I think
Also checked the plugs before bed last night and they're very black and sooty, which confirms it's overfuelling rather than fuel
starvation.
Bob - nearly U2U'd for advice, but remembered you had a DGAV auto choke carb, mine's a DGV manual choke so slightly different.
off topic, but how's the zetec re-fit coming along?
Cheers
Nick
[Edited on 14/9/06 by nick205]
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bob
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| posted on 14/9/06 at 09:08 AM |
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Sorry nick i should have remembered the carb was different
Zetec change is going well thanks,i had to pull all the wiring back through the scuttle to change to off side which was a bit painfull.
Only other changes in the bay that i can see are near side brake pipe re route because of engine mount and fuel pipe redirection.
Anyway
hope you get the carb sorted
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roadrunner
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| posted on 14/9/06 at 07:31 PM |
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When the engine stops do you get a mist coming out of the top , if so its over fueling , i had the same problem with mine after i took it apart ,
aparently i'd bent the float arms so fuel was pouring in and flooding the engine.
Hope this helps.
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omega 24 v6
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| posted on 14/9/06 at 08:44 PM |
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On the 38 dgas there is a common issue and it may IIRC exist on the dgav as well. Look into the top of the carb (filter off) there is (in each barrel)
a small ally arm which when the acc is pressed injects fuel into the barrels directly. It's held in place by a brass banjo screw (you need to
lift the top of the carb to get to it) inside the brass screw there is a ball bearing which acts as a one way valve.They can stick. If you can blow
and suck air through it then it's jammed and when the engine is idling you'll be able to see fuel being sucked into the throats of the
barrels. A good old squirt of carb cleaner or wd40 and a blow through usually does the trick.
Like I say IIRC it could be this.
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nick205
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| posted on 14/9/06 at 09:40 PM |
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more good info guys!
The carb is coming off/apart over the weekend to investigate further
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