Sunday, February 22, 2015

Hardline - From the Pump to the Carb

Question: WHAT FUEL LINE IS STOCK ON MY CAR???

Answer: 3/8 - inside diameter.  I think.  Well, maybe it isn't stock but that is what is on there right now.   I think?   That is what rubber fuel hose I'm currently using...and I think that is what the ghetto hardline that is half way coming out of there now is?

Either way, 3/8 is the hose I need, especially once I drop my soon to be rebuilt 460 in there.

Why am I asking?  

I'm going to run hard/steel fuel line from my "stock" fuel pump to my carburetor.  I want to eliminate ALL rubber from my engine application.   Why?

This:
That's chunks of "brand new" fuel rated hose in my carb's fuel filter.  Also, all the salty mechanics I talk with swear "the ethanol in our fuel is destroying everything, thanks OBAMA".  I have zero idea if there is any truth to that or not.  Nor do I care really, but moving away from failure prone rubber to non-expanding stainless steel seems like a kickass way to go.  Plus it will look good!

Also:

Yeah, so you can see my hardline (which is covered in ugly insulation) goes up the front of my block.  Then it terminates STRAIGHT UP IN THE AIR.  Currently, I only had the spare parts to run the stupid rubber fuel hose OVER my air cleaner so it didn't pinch off at the barb from the hardline.    If it pinches, it means I get no fuel.

Not pictured is the rubber tubing going into a glass filter, then from that going into a fuel pressure sender and finally into my carb underneath that thing.  This sucks, it's ugly and dangerous in my opinion.  Plus, I'm ALREADY SEEING SOME RUBBER DEGRADING ISSUES.  *rage*

GOAL: Bend some hard line straight to the carb.  Yeeeeaaah. 

Rules: NO BRAIDED BLUE RED AN crap.  I hate that look.   Basically something like this:


Hardline from the pump -> to a filter -> hardline to carb.  Bam.  But now to figure out all the connections....ugh, so like, here is what I got so far....


  1. Fuel Pump
  2. (Fuel Pump) 7/16's flare nut into 3/8 hard line
  3. 3/8 hard line to 5/8's flare nut
  4. ??? ??? ???????? (I DONT KNOW)
  5. -8 AN fuel filter
  6. 8 AN to 3/8 npt adapter
  7. (already have this) 3/8 fitting to carb (with fuel pressure sender)

*Sigh*  This is hard.  So.....I'm going to be researching how to make this actually happen then hopefully commit.


-----END TRANSMISSION----


--- EDIT - 2/23 ----
Mickey just told me that there is such thing as tube to an adapters....this changes everything.  Expect an update late Sunday.





Note: As with every post from here on out, I will post my current car status.  It will usually hold my mental dump of all the things I'm currently working on or thinking about.  

Current Car Status:

  • My 460 Rebuild:
    • What: Block is in Machine Shop
      • 460 Block is honed and bored out to .030 and is good to go!!
      • Stock crankshaft was polished and given the thumbs up!!!
    • Status: Awaiting the Kb138 pistons I ordered so they can assemble the rods for me.
  • Wheel Bearings
    • What: I have a shudder at higher speeds, I need to look at that bearing.
    • Status:  Worrying about it.   Pretending it isn't there.
  • Fuel Line:  
    • What: pump to carb. reroute
    • Status: UGH!!