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#1 |
'70 C-10 Primer
Join Date: Dec 2008
Location: nevada,missouri
Posts: 117
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Fuel filter
Did these trucks originally have a fuel filter? Mine has the original steel gas lines and no filter. Did they have an undercab filter like some of the other trucks? I would hate to cut the lines to put in a filter. It's a 1970 with a 250.
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"The difference between stupidity and genius is that genius has its limits." Albert Einstein Last edited by rusty baker; 08-01-2010 at 01:44 PM. |
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#2 |
Registered User
Join Date: Dec 2006
Location: Rolla, MO
Posts: 2,463
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Re: Fuel filter
It was probably inside a fitting on the carb where the fuel line scres into. Maybe a brass or paper element.
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-Scott- |
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#3 |
'70 C-10 Primer
Join Date: Dec 2008
Location: nevada,missouri
Posts: 117
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Re: Fuel filter
No in -the -tank -screen or undercab filter?
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"The difference between stupidity and genius is that genius has its limits." Albert Einstein Last edited by rusty baker; 08-01-2010 at 01:51 PM. |
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#4 |
Registered User
Join Date: Aug 2009
Location: St. Paul MN.
Posts: 1,996
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Re: Fuel filter
fuel tank sock on fuel sending unit
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Fuzzy |
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#5 |
Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: Fuel filter
The only filters these trucks had from the factory was in the inlet of the carb, very small filter. There also is a sock style filter on the fuel pickup in the tank.
Some people take the small filter out of the carb and put a larger filter between the fuel pump and the carb. It is not recommended to put a filter between the tank and the pump because it could cause vapor lock problems.
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'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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#6 |
'70 C-10 Primer
Join Date: Dec 2008
Location: nevada,missouri
Posts: 117
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Re: Fuel filter
Thanks, just wondered. Guess that 1 year old fuel pump is gone. All the Ford trucks and vans had an undercab filter. I have a bad hip and have trouble crawling under anymore.
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"The difference between stupidity and genius is that genius has its limits." Albert Einstein |
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#7 |
Registered User
Join Date: Jun 2009
Location: Arlington Texas
Posts: 602
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Re: Fuel filter
Why do you say the fuel pump is gone? Im having an issue with mine in that it gets vapor lock. Not because of the fuel filter but because its so damn hot outside (100 plus today) combined with the intake temps Im boiling the gas inside the carb causing a vapor lock in my line from the pump to the carb. Im going to pick up a carb spacer tomorrow and that should finally solve my problem. I have a stock intake and a rochester carb. It has a small plastic spacer but its like only a 1/4 inch thick.
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1970 GMC truck ![]() 1988 Harley 1200 Sportster ![]() |
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#8 |
'70 C-10 Primer
Join Date: Dec 2008
Location: nevada,missouri
Posts: 117
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Re: Fuel filter
I'm not getting gas out of the pump.
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"The difference between stupidity and genius is that genius has its limits." Albert Einstein |
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#9 |
Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: Fuel filter
Have you checked the two rubber hoses in the fuel line? There is one under the cab and one at the suction side of the fuel pump. Mine had cracks in them causing the fuel pump to suck air.
Before you replace your fuel pump you should disconnet the suction hose and blow a little air pressure back into the tank to make sure it is not a plugged line. First take the gas cap off before applying air pressure.
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'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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#10 |
'70 C-10 Primer
Join Date: Dec 2008
Location: nevada,missouri
Posts: 117
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Re: Fuel filter
I'll try that if it ever cools off. It's 103F right now with 120F heat index.
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"The difference between stupidity and genius is that genius has its limits." Albert Einstein |
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#11 | |
Back in the sticks
Join Date: Jan 2001
Location: Fordland, MO
Posts: 3,188
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Re: Fuel filter
Quote:
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1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty |
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#12 |
'70 C-10 Primer
Join Date: Dec 2008
Location: nevada,missouri
Posts: 117
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Re: Fuel filter
This is me today.
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"The difference between stupidity and genius is that genius has its limits." Albert Einstein |
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#13 | |
Junior Member
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
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Re: Fuel filter
Quote:
The humidity here is unbearable though.
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'67 Chevy C-20 short stepper - build complete, 454/SM-465. '75 C-30 Single Cab DRW-350 small block/NP-435. '77 GMC-6500 Dump Truck, 427 Tall Deck. '92 GMC K-3500 Duallie, 454/4L80E. |
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#14 |
'70 C-10 Primer
Join Date: Dec 2008
Location: nevada,missouri
Posts: 117
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Re: Fuel filter
They say it will only last til October.
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"The difference between stupidity and genius is that genius has its limits." Albert Einstein |
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#15 |
Registered User
Join Date: Mar 2003
Location: San Francisco, CA USA
Posts: 2,454
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Re: Fuel filter
Before you unbolt that pump.....
Disconnect the inlet line, hold your finger over the port, and have a helper crank the engine. Do you feel any suction? If yes, don't replace the pump unless you have just plain run out of other things to do with your money. Ray |
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#16 |
'70 C-10 Primer
Join Date: Dec 2008
Location: nevada,missouri
Posts: 117
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Re: Fuel filter
That's the problem. Don't have any money.
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"The difference between stupidity and genius is that genius has its limits." Albert Einstein |
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#17 |
Registered User
Join Date: Jul 2010
Location: central michigan
Posts: 1,193
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Re: Fuel filter
Can you get replacement filters for the original carb?
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#18 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,940
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Re: Fuel filter
Yes.
Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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#19 |
RAT1968 '68 Cab/'71 Parts
Join Date: Feb 2002
Location: Coarsegold, CA
Posts: 2,375
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Re: Fuel filter
Anybody try an electric fuel pump with a fuel filter on it with an otherwise stock truck (meaning, tank in the cab, no FI, etc.)?
Right now, I'm replacing the fuel delivery system from a newly and properly cleaned (boiled out) up to the carb. And, I'm always wondering about even NEW fuel pumps. I'll try the "suck test", raycow offered back in 2010 (thanks for that, BTW), but wouldn't it be nice just to block it off and call it "done".... ....Time, and technology, marches on, no?
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M17 Coarsegold, CA RAT's shiny now. But always a rat. Last edited by magwakeenercew2jh; 03-11-2013 at 11:12 PM. |
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