Should I replace the fuel pump when replacing gas tank??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

eastcoastcivil · 05-06-2009, 05:52 AM

I have a 67 with a real rusty gas tank in it. So rusty that the truck won't start. When I replace the tank should I also replace the fuel pump also? Can the fuel pump be cleaned? Thanks

**'68OrangeSunshine** · 05-06-2009, 06:21 AM

Replacing the fuel pump is easy and cheap. Also good insurance. Some early models could be refurbished, but I've found that the kit is more expensive than a newer style, toss-when-done type. Don't forget an inline gas filter between the pump and the carb.
This is assuming you have the stock mechanical fuel pump. The electrics [like the Holley Red] are cheaper to rebuild than replace.

eastcoastcivil · 05-06-2009, 06:28 AM

I have an inline gas filter now right after the fuel pump and its got some sediment in it but not that bad. I will replace the tank and sending unit to be 100% sure the gas is clean. Is it possible the sending unit is rusted so bad the gas can't get through?

myoldchevytruck · 05-06-2009, 06:49 AM

The sending unit could also be an issue. As OrangeSunshine said, changing the fuel pump is easy and not to expensive and as he suggests, be sure to change that fuel filter. My tank was pretty bad also. There are a couple of ways you can actually clean your tank. I used dawn dish detergent and flushed my tank with lots of water and let it dry as a DIY clean but then bought it to a local radiator shop and had it boiled clean and coated (bout' $80 bucks in my town). As far as the Sending Unit, I purchased a new one from Brothers. Again, it was inexpensive. Bout' $40 bucks. Do you self a favor, change all that stuff. Your engine will love you for it. Good Luck!

**'68OrangeSunshine** · 05-07-2009, 05:44 AM

Quote:

Originally Posted by eastcoastcivil

I have an inline gas filter now right after the fuel pump and its got some sediment in it but not that bad. I will replace the tank and sending unit to be 100% sure the gas is clean. Is it possible the sending unit is rusted so bad the gas can't get through?

Any contamination is bad. We used to call it FOD when I was in the military.
Foreign Object Debris = Foreign Object Damage. Your goal is Zero Defects, thru zero FOD.
The sock on the end of the fuel pickup can decay and not flow thru gas.

fdbdw · 05-07-2009, 08:03 PM

since we are on the topic of dirty tanks, I dumped a bunch of, ( as best as I can describe), looks like little chocolate sprinkles, out of my filter. Does anyone now what it is and causes it

myoldchevytruck · 05-07-2009, 08:08 PM

Are you sure it was not rust sediment?

fdbdw · 05-07-2009, 08:18 PM

I cant tell what it is, as stupid as it sounds, small black choclate sprinkles is the best way I can describe it, any ideas on the best way (and easiest of couse) way to get rid of it

papawswrench · 05-06-2009, 07:10 AM

It would be foolish not to change it while the tank isbeing changed.

cdowns · 05-06-2009, 07:26 AM

also try blowing out the fuel lines as well as replacing the rubber sections especially the one under the cab is good insurance

eastcoastcivil · 05-06-2009, 08:26 AM

Will do. I am going to have the tank boiled and coated, change the sending unit, new fuel pump, new filter and replace rubber lines. I am so stoked now. Thanks

smoked68 · 05-07-2009, 08:43 PM

Chocolate sprinkles?? Maybe bake some cup cakes???

fdbdw · 05-08-2009, 09:42 AM

dont like to bake so jsut ate them raw

05-06-2009, 05:52 AM	#1
eastcoastcivil Registered User Join Date: Apr 2007 Location: New Brunswick, Canada Posts: 201	Should I replace the fuel pump when replacing gas tank??? I have a 67 with a real rusty gas tank in it. So rusty that the truck won't start. When I replace the tank should I also replace the fuel pump also? Can the fuel pump be cleaned? Thanks __________________ If your not living for something, your dieing for nothing...

05-06-2009, 06:21 AM	#2
'68OrangeSunshine Senior Member Join Date: Feb 2002 Location: Tucson, AZ USA Posts: 7,441	Re: Should I replace the fuel pump when replacing gas tank??? Replacing the fuel pump is easy and cheap. Also good insurance. Some early models could be refurbished, but I've found that the kit is more expensive than a newer style, toss-when-done type. Don't forget an inline gas filter between the pump and the carb. This is assuming you have the stock mechanical fuel pump. The electrics [like the Holley Red] are cheaper to rebuild than replace. __________________ Every 25 years I like to rebuild that 292, whether it needs it or not.

05-06-2009, 06:28 AM	#3
eastcoastcivil Registered User Join Date: Apr 2007 Location: New Brunswick, Canada Posts: 201	Re: Should I replace the fuel pump when replacing gas tank??? I have an inline gas filter now right after the fuel pump and its got some sediment in it but not that bad. I will replace the tank and sending unit to be 100% sure the gas is clean. Is it possible the sending unit is rusted so bad the gas can't get through? __________________ If your not living for something, your dieing for nothing...

05-06-2009, 06:49 AM	#4
myoldchevytruck Retired Air Force Veteran Join Date: Aug 2007 Location: Pembroke Pines, Florida 33024 Posts: 1,808	Re: Should I replace the fuel pump when replacing gas tank??? The sending unit could also be an issue. As OrangeSunshine said, changing the fuel pump is easy and not to expensive and as he suggests, be sure to change that fuel filter. My tank was pretty bad also. There are a couple of ways you can actually clean your tank. I used dawn dish detergent and flushed my tank with lots of water and let it dry as a DIY clean but then bought it to a local radiator shop and had it boiled clean and coated (bout' $80 bucks in my town). As far as the Sending Unit, I purchased a new one from Brothers. Again, it was inexpensive. Bout' $40 bucks. Do you self a favor, change all that stuff. Your engine will love you for it. Good Luck! __________________ Harry 69' SWB Step Side 1/2 Ton w/68' Front Clip Swap from Leafs to Trailing Arms (Complete) Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front) 3/6 Drop Help Support The Board Click Here For Information On How To Subscribe Krue's FAQ Page Vendors

05-07-2009, 08:03 PM	#6
fdbdw Registered User Join Date: Jan 2009 Location: colorado springs Posts: 479	Re: Should I replace the fuel pump when replacing gas tank??? since we are on the topic of dirty tanks, I dumped a bunch of, ( as best as I can describe), looks like little chocolate sprinkles, out of my filter. Does anyone now what it is and causes it

05-07-2009, 08:08 PM	#7
myoldchevytruck Retired Air Force Veteran Join Date: Aug 2007 Location: Pembroke Pines, Florida 33024 Posts: 1,808	Re: Should I replace the fuel pump when replacing gas tank??? Are you sure it was not rust sediment? __________________ Harry 69' SWB Step Side 1/2 Ton w/68' Front Clip Swap from Leafs to Trailing Arms (Complete) Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front) 3/6 Drop Help Support The Board Click Here For Information On How To Subscribe Krue's FAQ Page Vendors Last edited by myoldchevytruck; 05-07-2009 at 08:08 PM.

05-07-2009, 08:18 PM	#8
fdbdw Registered User Join Date: Jan 2009 Location: colorado springs Posts: 479	Re: Should I replace the fuel pump when replacing gas tank??? I cant tell what it is, as stupid as it sounds, small black choclate sprinkles is the best way I can describe it, any ideas on the best way (and easiest of couse) way to get rid of it

05-06-2009, 07:10 AM	#9
papawswrench Senior Member Join Date: Jan 2003 Location: Alvin ,TX Posts: 2,172	Re: Should I replace the fuel pump when replacing gas tank??? It would be foolish not to change it while the tank isbeing changed. __________________ papawswrench Certified wrench hound ! Tool Talk Randomview PapawsImages https://www.flickr.com/photos/nhankamer/

05-06-2009, 07:26 AM	#10
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Should I replace the fuel pump when replacing gas tank??? also try blowing out the fuel lines as well as replacing the rubber sections especially the one under the cab is good insurance __________________ 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

05-06-2009, 08:26 AM	#11
eastcoastcivil Registered User Join Date: Apr 2007 Location: New Brunswick, Canada Posts: 201	Re: Should I replace the fuel pump when replacing gas tank??? Will do. I am going to have the tank boiled and coated, change the sending unit, new fuel pump, new filter and replace rubber lines. I am so stoked now. Thanks __________________ If your not living for something, your dieing for nothing...

05-07-2009, 08:43 PM	#12
smoked68 Registered User Join Date: Oct 2006 Location: Rock Hill, SC Posts: 421	Re: Should I replace the fuel pump when replacing gas tank??? Chocolate sprinkles?? Maybe bake some cup cakes??? __________________ 1968 chevy shortbed, Dark Shadow Gray 4 bolt 383 Stroker,Weiand Super Charger, disc brakes, 9 inch, 391 gear, 20" Eagle wheels, muncie 4 speed/ Hurst shifter, 4/7 drop, Hedman midlengths, 3 inch exhaust w/ 2 chamber flows. 1966 Mustang with 306 roller, c-4, 9 inch Detroit locker rear. 1965 Fastback Mustang w/347 stroker, top loader 4spd, 9 inch detroit locker. 1966 Mustang coup, 306 roller, c4, 9 inch. 65 Cobra, 427, T6oo, 9inch, of course. First gen Hayabusa, airbox mod and running 2 exhaust cams.. Zoom Zoom Zoom

05-08-2009, 09:42 AM	#13
fdbdw Registered User Join Date: Jan 2009 Location: colorado springs Posts: 479	Re: Should I replace the fuel pump when replacing gas tank??? dont like to bake so jsut ate them raw

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