Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 09-24-2021, 06:38 PM   #1
Woodie1
Senior Member
 
Woodie1's Avatar
 
Join Date: Mar 2011
Location: W. Mich.
Posts: 471
Default Carb problem

Looking for ideas on my Ford 91-99 carb. When I try to adjust the air mixture screws on the back base of the carb I have issues. One side the car will quit when I turn the screw in, The other side I can turn the screw all the way in & it has no effect on the running. I assume this is wrong. Is this an easy fix or should I seek a rebuilder?
Woodie1 is offline   Reply With Quote
Old 09-25-2021, 07:39 AM   #2
Terry,OH
Senior Member
 
Terry,OH's Avatar
 
Join Date: May 2010
Posts: 4,725
Default Re: Carb problem

Remove the adjustment screws and spray some carb cleaner it the two holes, can follow that up with a couple quick shots of low pressure maybe 10 PSI compressed air. Reinsert the adjustment screws and go to the start position about 7/8 turn out and see if you have your problem fixed and can then adjust properly if not a rebuild may be in order.
Terry,OH is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 09-25-2021, 07:46 AM   #3
Mart
Senior Member
 
Mart's Avatar
 
Join Date: May 2010
Location: Solihull, England.
Posts: 8,732
Default Re: Carb problem

If it still runs with the idle screw fully closed it must be getting fuel from somewhere else. Bad power valve gasket.
Punctured power valve.
Warped housings causing vac leak to power valve chamber allowing power valve to stay open.
Punctured float.
Needle valve not sealing.
Fuel level too high.
All these (and probably more) can cause a 94 to run rich. This rich running will make the idle mixture screws more or less ineffective.

Mart.
Mart is offline   Reply With Quote
Old 09-25-2021, 08:17 AM   #4
Charlie ny
BANNED
 
Join Date: May 2010
Posts: 3,019
Default Re: Carb problem

Most likely the ineffective screw is on the passenger side where the throttle arm action

exerts wear on the throttle shaft and throttle shaft bore. Anything over .005 wear
here is risky and an annoying source of vac leaks....as well as warping as Mart sug-
gests. O/S t shaft may be in order.
Charlie ny
Charlie ny is offline   Reply With Quote
Old 09-25-2021, 03:07 PM   #5
Woodie1
Senior Member
 
Woodie1's Avatar
 
Join Date: Mar 2011
Location: W. Mich.
Posts: 471
Default Re: Carb problem

Are there any recommendations of a carb rebuilder for a 91-99?
Woodie1 is offline   Reply With Quote
Old 09-25-2021, 04:01 PM   #6
mfirth
Senior Member
 
Join Date: Aug 2017
Location: ohio
Posts: 986
Default Re: Carb problem

Sponsored Links (Register now to hide all advertisements)
Charlie ny is "the man" . Easy to talk to, GR8 quality & fair price. He did mine.....send him a p m.
mfirth is offline   Reply With Quote
Old 09-26-2021, 08:47 AM   #7
Planojc
Senior Member
 
Planojc's Avatar
 
Join Date: May 2010
Location: Plano, Texas
Posts: 829
Default Re: Carb problem

You just heard from the best rebuilder, Charlie NY.
Planojc is offline   Reply With Quote
Old 09-27-2021, 07:36 AM   #8
corvette8n
Senior Member
 
corvette8n's Avatar
 
Join Date: Jul 2010
Location: 36 miles north of Albany NY
Posts: 2,931
Default Re: Carb problem

+1 on Charlie.
corvette8n is offline   Reply With Quote
Old 09-27-2021, 10:51 PM   #9
Pdstark
Member
 
Pdstark's Avatar
 
Join Date: Jun 2020
Location: CA & MN
Posts: 51
Default Re: Carb problem

+2 for Charlie… he did mine.
__________________
“Wherever you go - there you are”
Pdstark is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 12:45 AM.