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Fuel pump, repairable?

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Old Jun 18, 2014 | 04:40 PM
  #21  
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Originally Posted by 69bones
Haha..you know what else I realize is probably more important.....

From when I was verifying numbers the engine block info is : "255 HP 4 bbl 350 truck engine built in Flint Michigan on Nov 30 1970 for a pickup with automatic transmission."

So I believe I am right back to the 41240. Still would like a pic of someone else's installation to confirm which way the hoses routed.
I believe that just about any SBC fuel pump will bolt up to just about any SBC (pre-1987, anyway), and will function. Will it line up with the existing fuel lines? That is the question. Take some more pics, and we'll figure it all out.

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Old Jun 19, 2014 | 07:21 PM
  #22  
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Originally Posted by scottyp99
I believe that just about any SBC fuel pump will bolt up to just about any SBC (pre-1987, anyway), and will function. Will it line up with the existing fuel lines? That is the question. Take some more pics, and we'll figure it all out. Scott
Crazy busy week at work .... Here's a pic of what's in the way at the moment.....sitting by the pool while my kids swim..... More pics later after they go to sleep.



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Old Jun 22, 2014 | 05:44 AM
  #23  
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Old Jun 22, 2014 | 06:03 AM
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No more gas smell huh.

How long did it take you to R & R it?
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Old Jun 22, 2014 | 06:07 AM
  #25  
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Above pics should show all the line locations. The current lines are both on the front( facing the radiator).

The pics of the 21240 look like the inlet faces rearward....I might need to get creative in the routing from pump to carb. There isn't any slack in the line I have there.

Why can't I find a pump listed for a 69 that has the return line? Clearly the return lines were there originally for that year. Hoping such pump might have inlet on the front.

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21240 pic from an eBay ad. Most of the pics look just like this.

Next up will be;
1 Is it easy to verify of the other end of the return line is complete back at the tank? ( don't want to hook it up and find out the other end isn't connected because someone saw there was no return pump)
2 have to look for the right formed hoses to match the pump


If I can order the parts this week maybe by next weekend I can be wrenching. I already wish I was driving it to work today - feels like all I am doing is working.

Last edited by 69bones; Jun 22, 2014 at 06:11 AM.
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Old Jun 22, 2014 | 06:08 AM
  #26  
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Originally Posted by Cavu2u
No more gas smell huh. How long did it take you to R & R it?
You caught me in between posting pics from iPhone and typing from iPad. Not done yet
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Old Jun 22, 2014 | 06:32 AM
  #27  
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I also only find on ecklers that the multi hose kit between pump and hard lines the tank only starts at 1970.

My build date is about Aug 30th. Is this one of hose late (in the) year build changes that I have read about?

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Part # 41953
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Old Jun 22, 2014 | 06:56 AM
  #28  
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Ok , I see at the bottom where the vapor line is 68 to 81. Why the 70 to 81 title?



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Old Jun 22, 2014 | 08:12 AM
  #29  
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Originally Posted by 69bones
Ok , I see at the bottom where the vapor line is 68 to 81. Why the 70 to 81 title?



Attachment 47806305
I'm not sure why it would make any difference.
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Old Jun 22, 2014 | 01:33 PM
  #30  
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My car has a return line, I don't see a return line pump listed as the replacement for a 69 anywhere.

I am about to just pull the trigger and buy the two hoses I listed above and an ACDelco 41240 and make it work from there.

What's the worst? I buy some other hose solution?

Last edited by 69bones; Jun 22, 2014 at 01:35 PM. Reason: correct part number
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Old Jun 22, 2014 | 02:49 PM
  #31  
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Ordered........ACDelco 41240 and the Eckler hoses.

Last edited by 69bones; Jun 22, 2014 at 04:28 PM. Reason: Caue
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Old Jun 29, 2014 | 03:19 PM
  #32  
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So I have the parts...removed the old one.. But now I am stuck getting new hoses in place. Probably spent 20 minutes over/under removing and cleaning from the old one.

As I expected the old line is too short to make it to the inlet on the new pump which is on the opposite side from the old one. I went to the local parts shop and spent $18 for a rubber line solution so it can be drivable again; rubber lines and an inline filter. Even though I brought samples and the guy "showed" me that the threaded end to get a nipple at the carb was the same it won't fit so I am still stuck.

I well, I am half way there at least. There's a speed shop not too far from home so maybe I will find a way to get there this week to get the right "final" solution.

Half way there on a two bolt job ! Haha



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Old Jun 29, 2014 | 04:39 PM
  #33  
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It never hurts to install a lightweight fuel pump push rod if you plan on revving that motor past 6000RPM very often. Be sure you know what cam shaft type you have in the motor there are different push rods for cast iron and steel billet cams
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Old Jun 29, 2014 | 08:17 PM
  #34  
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Do I need permatex or not on these parts as I put it back together?

As for the lightweight push rod.....I will have to look up what type cam I have. I have a receipt somewhere. Any advantage if I am only revving so high "once in a while"? I assume the heavy rod prevents full strokes at very high rpm. Same thing that happens with valve float?
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Old Jul 3, 2014 | 04:34 PM
  #35  
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Don't light a match!

I get the the pump in after getting a new longer SS line made 30 minutes tops to do it...crank it up and it Looks good...no leaks under hood... Walk to the back to see if I can look in the tank and see fuel returning...

As I feared the return line isn't completely intact and it's dripping all over the place around my feet....

Will I have to remove the tank to get at these lines? Do i need to worry about what is fuel soaked?



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.
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Old Jul 3, 2014 | 05:25 PM
  #36  
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Originally Posted by qwank
get a stock pump and hook the return line back up
'69 has the return line coming from the fuel filter, not the pump. So,a stock fuel,pump,won't have provision for a return line.

Pete
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Old Jul 4, 2014 | 11:29 AM
  #37  
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Well I loosened and lowered the passenger side muffler so I could reach up to the top of the tank and reattach the return line. The bad news is that there is no barb sticking out of the tank for the return line to go into. WTF? There's a return line and a rusty old tank with no inlet? Someone actually replaced the tank (incorrectly?) with one without a return line so long ago that there was time for it get all rusty again?

I won't have the cash to buy a tank and all the other parts I would want to do it right for a little bit. I didn't like that return hose being pigged off in the engine bay.

What happens if I just plug off the return line on the pump so I can drive it for now?
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Old Jul 4, 2014 | 12:57 PM
  #38  
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Originally Posted by 69bones
Well I loosened and lowered the passenger side muffler so I could reach up to the top of the tank and reattach the return line. The bad news is that there is no barb sticking out of the tank for the return line to go into. WTF? There's a return line and a rusty old tank with no inlet? Someone actually replaced the tank (incorrectly?) with one without a return line so long ago that there was time for it get all rusty again?

I won't have the cash to buy a tank and all the other parts I would want to do it right for a little bit. I didn't like that return hose being pigged off in the engine bay.

What happens if I just plug off the return line on the pump so I can drive it for now?
Not sure, but I think the return line is there mainly to prevent vapor lock at the pump. So, you may be more likely to experience vapor lock. I don't think any of the C3s came without a return line, so any C3 tank should have a provision for it. Where are you looking? It should be up at the filler neck, shouldn't it? I have an '80, so, not exactly an expert on these steel bumper cars, ya know?

Scott
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Old Jul 4, 2014 | 01:25 PM
  #39  
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The issue that has not been addressed is that 1969 and older used a vented gas cap. 1970 and newer used non vented. Different fuel hose designs as well and likely different pumps. This is likely the reason for the differences you are encountering.
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Old Jul 4, 2014 | 01:30 PM
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Pics I see show it at the top on the passenger side pointing out to the side. That's exactly where the rubber line ends too. Maybe I should get mirror and look more thoroughly. My arm fit up there pretty well so I was pretty confident it isn't there. I see pics of tanks online for it as well that don't have that tit so I guess you can buy them without.
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