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05-31-2008, 12:44 AM
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#1 |
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Registered User
Join Date: Sep 2007
Location: N.E. Florida
Posts: 500
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Carb trouble!
My truck has been running quite well for a while.I'm getting decent MPG's.But the last couple of days smelled fuel.Removed carb to look,because of small puddle on the intake.Found this crack in the base plate at the P/B port.I don't think this was my current issue,but a hidden one.
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05-31-2008, 03:09 AM
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#2 |
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Right on the line, baby!
Join Date: Oct 2003
Location: Phila, PA 19130
Posts: 1,486
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Re: Carb trouble!
Any change in performance after you noticed the puddle/smell?
__________________
83 GMC 406 th400/3.73 Eaton Truetrac posi, headers, x pipe, & racePros. Tubular control arms, lowering rear springs, caltracs. Still ugly, but getting built right, although slowly Click and scroll down for site vendors! Subscribe here! |
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05-31-2008, 12:53 PM
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#3 |
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Registered User
Join Date: Sep 2007
Location: N.E. Florida
Posts: 500
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Re: Carb trouble!
On cold start ups it had developed a fast idle.It would settle down in 2 miles from the house.
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05-31-2008, 02:18 PM
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#4 |
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Arrived on a Pale Horse
Join Date: Mar 2007
Location: SnagTown Indiana
Posts: 2,524
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Re: Carb trouble!
how'd ya do that?
 What kind of carb is it?
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Jason 87 V30 350TBI/400 White w/Boss V-plow 89 R3500 CC SRW |
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05-31-2008, 03:06 PM
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#5 |
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Registered User
Join Date: Sep 2007
Location: N.E. Florida
Posts: 500
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Re: Carb trouble!
Its the Q-jet from my 86 C10.Its the first time I have ever had the carb off.
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05-31-2008, 08:42 PM
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#6 |
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Registered User
Join Date: Sep 2007
Location: N.E. Florida
Posts: 500
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Re: Carb trouble!
I tore the Q-jet down today,found lots of dirt,crud,ect.Also loose parts.Found that the cracked base plate is cracked clear through.I have that feeling this repair is going to keep building into something bigger than I want right now.
 
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05-31-2008, 10:12 PM
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#7 |
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Registered User
Join Date: May 2008
Location: Eville IN.
Posts: 365
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Re: Carb trouble!
check the main body to see if it worped
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05-31-2008, 10:50 PM
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#8 |
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Registered User
Join Date: Oct 2005
Location: Branchville SC
Posts: 1,647
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Re: Carb trouble!
jb weld it....
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2004 z71, 96 z71 on 38s, 88 Chevy k5 blazer, 4in lift. 84 swb project, 82 SWB project , 84 chevy 4x4 lwb project, 88 Jimmy beater/highschool ride. 79 c30. 99 tahoe 4x4 project. and a bunch of parts trucks.. |
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06-01-2008, 12:32 AM
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#9 |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Carb trouble!
From the looks of that crack, it came from over-tightening the vacuum fitting. Tapered pipe threads into aluminum that is not much thicker that the thread diameter itself. That is probably more common than we know.
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06-01-2008, 12:36 AM
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#10 | |
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Registered User
Join Date: May 2008
Location: Eville IN.
Posts: 365
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Re: Carb trouble!
Quote:
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06-01-2008, 03:57 AM
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#11 |
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Right on the line, baby!
Join Date: Oct 2003
Location: Phila, PA 19130
Posts: 1,486
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Re: Carb trouble!
I think you're right on, Longhair.
Sounds like the choke is off. Leaner = faster idle. You could use a rebuild or replace at this point. It's only been 22 years, or at least it looks like it from that butterfly. I would replace b/c of the crack, but that's just my $.02. I just don't like cracked carburetors.
__________________
83 GMC 406 th400/3.73 Eaton Truetrac posi, headers, x pipe, & racePros. Tubular control arms, lowering rear springs, caltracs. Still ugly, but getting built right, although slowly Click and scroll down for site vendors! Subscribe here! |
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