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straight gas 


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Posted: Wed Nov 26, 2008 12:05 am 
Fordmods Newbie

Posts: 11

Joined: 24th Nov 2008


Location: ADEL
SA, Australia

Thanks for your suggestions, but no to all:

Head has been rebuilt.
Have checked for leaks - none.
Converter cleaned out recently following LPG contamination.

Perhaps someone could tell me how to tune the damn thing.

Posted: Wed Nov 26, 2008 12:31 am 
Getting Side Ways
User avatar

Posts: 3363

Joined: 27th Dec 2004

Gallery: 4 images

Ride: MCMXCV Falcon

Location: G town
VIC, Australia

maybe needs new diaphragms in the converter or mixer

tuning is done via the 2 srews on the have a n idle screw and a full load screw...

mixture is also controlled by the FCV valve...when these die it can lead to very poor mixture control....listen to it closely and you should hear a rapid clicking




Posted: Wed Nov 26, 2008 10:47 am 
Stock as a Rock

Age: 33

Posts: 128

Joined: 10th Oct 2005

Ride: turbo ef falcon

Location: canberra
ACT, Australia

i had a pin hole in the idle diaphragm and had similar symptoms, i duno what yours looks like but there should be a hole on the housing next to the idle screw. try covering that up with your finger and see if the idle levels out, if it does your diaphragms shagged. full load screw should have nothing to do with it, have a fiddle with the idle screw and see if it gets any better.



I will not eat oysters. I want my food dead. Not sick. Not wounded. Dead.

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