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#1 |
Registered User
Join Date: Nov 2002
Location: Spokane WA
Posts: 66
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fuel line
Just a quick question.... is it possible to place an inline fuel filter just before a mechanical fuel pump? Or will this cause problems? Any thoughts, comments are appreciated.
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67 C/20 camper special 350 |
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#2 |
Post Whore
![]() Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
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That is where mine is located on the present engine. No problems that I am aware of.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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#3 |
Account Suspended
Join Date: Oct 2002
Location: Olathe, KS
Posts: 2,301
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Typically you want the fuel filter after the pump incase any debris or componants from the pump are sent upstream. It's also harder on the pump to pull fuel in and could cause pump failure if the filter becomes restricted. Although I'll admin "
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#4 |
Registered User
Join Date: Sep 2001
Location: central Ill. USA
Posts: 447
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I use two cheap hi-flow filters. Before and after the pump.
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69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint ______________________________ |
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#5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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I have 2 on mine also....one under the cab, and a pretty chrome/glass one under the hood so i can keep tabs on how much rust I am flushing out of the tank.
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#6 | |
Bloo
Join Date: Feb 2001
Location: Barren County Kentucky
Posts: 6,285
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ive got one clearish plastic one, but im thinking about taking it out and going filterless again, i had less problems before i put that thing on there, now it wont half run
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ASE Master Certified-GM Trained-Mechanic 1968 Chevy C30 157" WB Wrecker 1969 Chevy CST/10 SWB 1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed 1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205 1974 Chevy Custom Deluxe/10 1979 Chevy Custom Deluxe K10 farm truck beater 1989 Chevy K2500 Quote:
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#7 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Josh...never run filterless. That is just asking for trouble.
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#8 |
My other Love
Join Date: Aug 2001
Location: Castlegar B.C. Canada
Posts: 4,085
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I have fuel filters under the cab coming off the fuel switch and another one just before the line meets the carb
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![]() Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life |
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#9 | |
Bloo
Join Date: Feb 2001
Location: Barren County Kentucky
Posts: 6,285
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i cant figure out what happened, it was running fine with the quad, then with the holley, then when i flooded the holley and it shot gas out the top (gotta tune that thing next time
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ASE Master Certified-GM Trained-Mechanic 1968 Chevy C30 157" WB Wrecker 1969 Chevy CST/10 SWB 1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed 1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205 1974 Chevy Custom Deluxe/10 1979 Chevy Custom Deluxe K10 farm truck beater 1989 Chevy K2500 Quote:
![]() Last edited by Blue_71; 11-05-2002 at 01:27 AM. |
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#10 |
Registered User
Join Date: Sep 2001
Location: central Ill. USA
Posts: 447
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blue- sounds like your pump is going out? I use a Carter hi-volume pump.
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69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint ______________________________ |
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#11 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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I also have a Carter electric pump and have two filters, one before the pump and one in the engine bay. I have the first one there to protect the pump.
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#12 |
Registered User
Join Date: Jul 2000
Location: NC
Posts: 987
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Since the fuel line from the pump to the carb is hard, how have you guys went about putting a filter between the pump and carb?
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#13 |
Registered User
Join Date: Sep 2001
Location: central Ill. USA
Posts: 447
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alex- I cut about 3" out of the line next to the carb and use neoprene rubber fuel line and Gates clamps on the filter.
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69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint ______________________________ |
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#14 |
Registered User
Join Date: Mar 2002
Location: Bondurant, IA but in Worcester, MA for school
Posts: 767
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Heres a pic of my inline fuel filter on the left of the carb. Its a clear one which is nice so you can see if fuel is getting to the carb and whether its dirty or not. It was like $10 at Autozone.
Wow I really do need to get a new intake to match that shiny new carb. ![]() ![]() HotRod
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1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/ |
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#15 |
Registered User
Join Date: Jan 2003
Location: Washington State
Posts: 8,834
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Glass Fuel Filter
I hard lined my glass filter in place.
Had several rumors from truck people in my area saying that the filter if attached with rubber fuel line would allow the filter to hit metal and crack or break, you know the rest. Any comments to this theory? Blue Beard
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1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo |
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#16 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Blue Beard, it can happen, and has. A gy i know refuses to run them since he singed his stuff under the hood of his big block el camino that way.
however, if you place it where it is imposable to hit anything...then it won't hit anything. I been running them for years on quite a few vehicles...never had a problem yet. You just gotta think about stuff like that when you do it. |
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#17 |
Registered User
Join Date: Apr 2001
Location: jefferson city, mo
Posts: 1,364
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one of my friends had a glass one break, he has a electric fuel pump so it kept pumping fuel, he got caught between the truck and the garage door when he was pushing the truck out of the garage, it was pretty scary, dont take much to start a fire when fuel hits the headers.
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#18 |
Registered User
![]() Join Date: Feb 2001
Location: East Central, MO
Posts: 11,336
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I had one of those break for no reason on a very cold night before I painted my truck red. Wind chill was maybe 20-30 below. It didnt hit anything and was already broken when I got out to my truck after work. Ive been running one since then with no problems.
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#19 |
Registered User
Join Date: Sep 2001
Location: central Ill. USA
Posts: 447
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Well, one thing, if they don,t break they last a long time cause it's easy to take apart and clean. I think maybe some guys overtighten them with pliers and put the strain on the glass. I have one somewhere but am using a cheap plastic throw away unit now.
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69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint ______________________________ |
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#20 |
Recovering Truck Driver
Join Date: Mar 2002
Location: Orleans, NE USA
Posts: 1,883
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If you had Gas shoot out the top of a holley, there is a good chance it shelled the accelerator pump.......Holley's are notorious for that. My truck has 2 fuel filters, 1 before and 1 after the pump.....never had a problem.
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska |
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#21 |
Now the others dig........
![]() Join Date: May 2002
Location: San Antonio, TX
Posts: 1,520
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I have a filter before my fuel pump then before the carb. I have a rubber hose running from the pump to the carb...is that bad??? I have seen some with a steel fuel line from the pump to the carb...is it dangerous to have a rubber line???
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68 Chevy C10 Stepside Black Primer 78 GMC Longbed White 09 Chevy Silverado Shortbed Granite Blue LOOKING FOR A 67 4 DOOR IMPALA!!! ![]() MEMBER OF THE DRUM BRAKE CLUB Bachelor of Music in Jazz Studies Texas State University-San Marcos, TX Certified Music Educator I hope Mom is up there watching and being my Guardian Angel "I've got a fever.....and the only prescription.....IS MORE COW BELL" -The Legendary: Bruce Dickenson "F#$@ 'em up!!!!!!" -The Legendary: Rogelio Escobar ![]() TRUCKY LINKS http://67-72chevytrucks.com/vboard/s...d.php?t=457750 http://67-72chevytrucks.com/vboard/s...d.php?t=461184 http://67-72chevytrucks.com/vboard/s...d.php?t=472848 http://67-72chevytrucks.com/vboard/s...d.php?t=417541 http://67-72chevytrucks.com/vboard/s...d.php?t=477788 |
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#22 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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I have the same setup as swingsax68, electric fuel pump on frame rail under the cab, short length of rubber to the pump and then rubber line all the way to the carb. I've been wondering about hard lines as the rubber lines need replacing.
Does anyone have a picture of the original solid steel lines, what diameter tube is it and how is it routed? Is it safe to have all rubber lines and would it be better to have steel braided hoses rathaer than just plain rubber?
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#23 |
Registered User
Join Date: Sep 2000
Location: Cincinnati,OH,USA
Posts: 464
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Just got my truck back safe...going to a job this AM on the highway it started going slower 50-40-30 with the gas pedal to the floor. Limped to a gas station and checked all the fluid levels went to start it again, ran fine and made it back home. It has 1 of those coffee canister filters under the pass side cab thats probably clogging up don't know if they make filters like those anymore.
About the original hard line, it runs from the mechanical pump on the block to the front and across the top to a 90 degree turn into the front of the carb that has a built-in filter. If your running rubber line make sure it's fuel line rubber. The hard line is approx 1/4" I've got that setup on the 72 maybe you can make it out on the engine pic at my site.
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69 GMC 1 Ton Longhorn 37 Chevy Coupe |
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#24 |
newly minted old timer
Join Date: Dec 1999
Location: Hudson WI
Posts: 3,511
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i love the glass ones., used the same one for years now on the harley! it vibrates the hell out of still no trouble. the trick is to posistion the filter so no matter how hard you hit or shake it it never hits anything.
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____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban |
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#25 |
CCRider
Join Date: Feb 2000
Location: Olive Branch,MS,USA
Posts: 2,232
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If you want to use one of those glass POS filters, run don't walk to the nearest store and buy a fire extinguser. ( you should have one in your truck anyway. ) The question is not if they will fail, but when.
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72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS |
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