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#1 |
Registered User
![]() Join Date: Mar 2003
Location: Asheville, N.C
Posts: 952
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I have a couple of ?'s about the fuel filter that goes from the fuel pump to the carb?Where should this filter be located above the valve cover or above the fuel pump in front of the engine? I bought my filter from summit and it screws together and I discovered it was leaking yesterday and I tried to tighten it up and it still leaks, any suggestions on how to fix or should I use a different kind of filter? What is the best kind of fuel filter to use, a sealed one that doesn't screw together? Thank you. Dave
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#2 |
classic=of recognized value
Join Date: Sep 2008
Location: Wichita, KS
Posts: 317
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Re: carb fuel filter ?
I would put it where it doesn't leak on the exhaust manifold if there is ever a problem. My fuel filter is in the carb, so I can't help you on the best inline type. I like clear ones on my tractor though so I can see what's going on.
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#3 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: carb fuel filter ?
Here is a picture of where I located mine on a big block. I have installed the small block filters in the same area.
I am not sure about your leak. Is it the type of filter that is in line like the one in my picture? Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC Last edited by JimKshortstep4x4; 07-14-2009 at 12:54 PM. |
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#4 | |
Not a bad nut after all..
Join Date: Dec 2000
Location: ND
Posts: 1,756
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Re: carb fuel filter ?
Quote:
Nice looking and safe! Where did you get the fuel filter?
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'05 Chevy 2500HD 4x4 '72 GMC LWB 4x2 driver '72 Chevy LWB 4x4 plow truck '71 Blazer 4x4 driver '70 GMC LWB trailer |
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#5 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: carb fuel filter ?
I picked the filter up at NAPA. I run the external filter and leave the Q-Jet carb filter in place.
The filter has female fittings on both ends, (3/8" thread). Jim
__________________
1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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#6 | |
Not a bad nut after all..
Join Date: Dec 2000
Location: ND
Posts: 1,756
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Re: carb fuel filter ?
Quote:
Thanks, I'll check at Napa! Did you have to flare the ends of the fuel line also?
__________________
'05 Chevy 2500HD 4x4 '72 GMC LWB 4x2 driver '72 Chevy LWB 4x4 plow truck '71 Blazer 4x4 driver '70 GMC LWB trailer |
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#7 |
Eat My Rust
Join Date: Jan 2007
Location: Cypress, Texas
Posts: 3,362
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Re: carb fuel filter ?
I use the filter in my q-jet carb, and currently have a clear fram (find it at walmart) one on the rubber line between the gas tank and the hard lines on the frame, while the new tank gets new gas and washes out any rust left inside.
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#8 |
Registered User
![]() Join Date: Mar 2003
Location: Asheville, N.C
Posts: 952
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Re: carb fuel filter ?
I have an edelbrock 750cfm carb. with 3/8 rubber fuel line. with a metal filter that I bought from summet that screws together and leaks.
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#9 |
Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,269
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Re: carb fuel filter ?
Best filter location is between the tank and pump. Not under pressure and any leak will not put gas into the engine, exhaust manifold, or firewall. See newer trucks and they all have the filter cradled inside the frame usually behind the location of the cat converter. Most engine fires come from leaking fuel filter, rubber hose line above the intake manifold. If a filter starts to leak on top of or in front of the engine--guess what happens. Huck
Last edited by Huck; 12-19-2008 at 10:37 AM. Reason: forgot something |
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#10 |
It's a catastrophic success.
![]() Join Date: Jan 2003
Location: Oklahoma
Posts: 2,077
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Re: carb fuel filter ?
Also if possible mount the filter horizonal, it helps to trap water like a settling bowl.
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#11 | |
Not a bad nut after all..
Join Date: Dec 2000
Location: ND
Posts: 1,756
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Re: carb fuel filter ?
Quote:
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'05 Chevy 2500HD 4x4 '72 GMC LWB 4x2 driver '72 Chevy LWB 4x4 plow truck '71 Blazer 4x4 driver '70 GMC LWB trailer |
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#12 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: carb fuel filter ?
badpeanut,
I bent the line and flared the ends. It was pretty easy to do. I don't like the rubber hoses as had been mentioned. Jim
__________________
1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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#13 | |
Eat My Rust
Join Date: Jan 2007
Location: Cypress, Texas
Posts: 3,362
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Re: carb fuel filter ?
Quote:
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#14 |
"Trucks with Class"
![]() Join Date: Jul 2000
Location: OLYMPIA, WA, USA
Posts: 8,132
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Re: carb fuel filter ?
I learned on my race cars that steel braided hose with AN fittings is the best way to go for trouble-free gas lines. No flares to leak and easy tightening. They look cool, too.
Last edited by PICKMUP; 12-19-2008 at 11:02 PM. Reason: pic |
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#15 |
Registered User
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Location: Asheville, N.C
Posts: 952
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Hi , I tried to put the metal edelbrock setup on in the past and it hits the a/c bracket on the intake manifold and didn't work , so if I stay with the rubber fuel line,which is better between the tank and fuel pump or in the engine compartment and (where in the engine compartment)? Thank you. Dave
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#16 |
Senior Member
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Location: Albuquerque NM
Posts: 7,848
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Re: carb fuel filter ?
quick word of advice. I dont know if theyre still available but they used to sell glass aftermarket fuel filters. stay away from these!!, ive seen where they crack and leak on a hot engine block. could be catastraughic!!
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1967custom |
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#17 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: carb fuel filter ?
I usually stay away from parts that cause fires. However...
A glass filter that is properly secured, won't break, period. (excluding accidents or morons tossing thingson top o the motor) A hose clamp properly clamped, on a hose that is properly inspected from time to time, won't be an issue either. A filter should be on the pressurized part of the fuel line. If it is on the vacuum side, then this lowers the boiling point... which boiling fuel is called vapor lock, and can lead to walking home. Putting the filter on the vacuum side also increases the work the pump is needed to do. I am honestly amazed at how many people on here comment on leaking fuel filters. Put it on, do it right, tighten everything down, and it should be good. If you want to be super safe, and don't like rubber in the fuel line (like they did from the factory... under the cab over the exhaust pipe) then do something like the first photo, or the AN stuff that was posted further down. if going the route of the first photo, you can get smaller filters that aren't as ugly and in the way, and even place them over the intake for ease of service. Again, you'll want to secure the line, as a line is not supposed to support its self and can split from vibrations... and those metal filters aren't real strong either, so you'll want to make sure it doesn't vibrate against anything also. |
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#18 |
Registered User
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Location: Asheville, N.C
Posts: 952
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Can you please post some pics of the filter with rubber fuel lines and how you secure them? thank you. I'd really appreciate it. Thank you.Dave
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#19 |
Registered User
Join Date: Dec 2003
Location: georgia
Posts: 212
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Re: carb fuel filter ?
hey jimkshortstep4x4 could you get a part number off your filter i can't seem to find them.
Thanks Eric Last edited by eric72; 12-23-2008 at 09:45 PM. |
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#20 |
Registered User
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
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Re: carb fuel filter ?
here is a pict of my set up......
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Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild |
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#21 | |
Out of the carpool lane.
Join Date: Jan 2000
Location: Clark Co, WA
Posts: 5,673
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Re: carb fuel filter ?
Quote:
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1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten... |
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#22 |
Senior Member
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Location: Lewisville, Nc
Posts: 10,234
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Re: carb fuel filter ?
i run a clear plstic inline filter from advance auto parts with 2 rubber hoses
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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#23 |
Senior Member
![]() Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,873
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Re: carb fuel filter ?
Could comebody please explain to me why it is necessary or even desireable to SEE inside the filter? I've somehow made it by all these years just assuming the gas was moving on through there and when it wasn't,It was easy enough to figure out.
I was given a vehicle once that had the see-through filter on the front of the engine and when a fan belt broke it took out the little POS see-through filter and burned up the engine compartment. Just get a good quality metal filter and like LM says inspect the fittings once in a while.
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'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme. |
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