The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-24-2011, 11:53 PM   #1
kq4pc
Registered User
 
Join Date: Sep 2003
Location: lebanon tn.
Posts: 96
Thumbs up Holly carb problem

Hey Guys, Need some info.on a holly carb.Ijust installed a built 327 in my 68,the old motor with eldebrock carb ran good.any way,my problem is the holly will not feed gas into motor to start motor.i pour gas in it it fires right up and runs.i have a clear sight glass in line,noticed fuel leaking back down when shut it down.does the carb have a bad pump or is the fuel pump my problem? Any info will help. Thanks Bobby
__________________
36 master 36 master delux coupe,6cly,3sp. 58 impala,348 3 duces,4 sp. 56 belair,302,4sp,12 bolt. 2000 silverado,5.3 auto. 65 foo foo rd,352 auto,for sale
kq4pc is offline   Reply With Quote
Old 11-25-2011, 12:07 AM   #2
coops714x4
Registered User
 
coops714x4's Avatar
 
Join Date: Mar 2011
Location: Cement Oklahoma
Posts: 916
Re: Holly carb problem

check the pressure on your fuel pump first
__________________
1971 K20, Coop's beast (project)
1972 C30 wrecker, "Big Ernest" (SOLD)
1975 K5 Blazer (wife's toy) she got it in the divorce
2014 Street Glide Special
1983 K20 Big Block, auto (work horse)
coops714x4 is offline   Reply With Quote
Old 11-25-2011, 10:34 AM   #3
cdowns
Senior Member
 
cdowns's Avatar
 
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
Re: Holly carb problem

take fuel line off carb// place in a container turn engine over// factory spec is about 1 pint pumped at cranking speed in 30-45seconds
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane

MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF

DONT BELIEVE EVERYTHING YOU THINK

TAKE MY ADVISE;I DON'T USE IT ANYWAY
cdowns is offline   Reply With Quote
Old 11-25-2011, 12:18 PM   #4
tanman722001
Registered User
 
tanman722001's Avatar
 
Join Date: Oct 2010
Location: Mocksville,NC
Posts: 419
Re: Holly carb problem

Sounds like fuel pump leaking down
__________________
1991 GMC K2500 4X4 350/auto
1991 Chevy S10 ext cab.
1990 Chevy S10
1993 Chevy S10 Blazer 4dr 4.3 Vortex/Auto
tanman722001 is offline   Reply With Quote
Old 11-25-2011, 02:19 PM   #5
67chevemall
Registered User
 
67chevemall's Avatar
 
Join Date: Apr 2003
Location: NB
Posts: 3,367
Re: Holly carb problem

Wouldn't be the carb...maybe the fuel filter is backwards...or the pump isn't good...
Take the fuel line off the carb and turn it over...^
__________________
1968 Chevy C10 307 3ott fleetside
1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold
1967 Chev C/10 step, 383, M21. SOLD
67chevemall is offline   Reply With Quote
Old 11-25-2011, 05:51 PM   #6
kq4pc
Registered User
 
Join Date: Sep 2003
Location: lebanon tn.
Posts: 96
Re: Holly carb problem

Hey , Thanks for the replys guys.going to get my headers hooked back to exhaust system tomorrow,a little noisey to say the least.then i will get on fuel problem. Bobby
__________________
36 master 36 master delux coupe,6cly,3sp. 58 impala,348 3 duces,4 sp. 56 belair,302,4sp,12 bolt. 2000 silverado,5.3 auto. 65 foo foo rd,352 auto,for sale
kq4pc is offline   Reply With Quote
Reply

Bookmarks


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


All times are GMT -4. The time now is 11:50 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com