Author Topic: Edelbrock Carb help needed  (Read 13731 times)

Offline Shifty

  • Senior Member
  • ****
  • Posts: 1078
  • I bleed Bowtie red...
Re: Edelbrock Carb help needed
« Reply #15 on: October 17, 2024, 10:25:54 am »
You can get the check valve (1/4" female pipe threaded) in NAPA Fuel Pumps p/n# a0001q, or Delphi p/n# fa10016, but I think its all in the carb, which will be full of what looks like sand, but it's the ethanol-heavy fuels' effect.   >:(
87 V20 Standard Cab Longbed (current)

87 R30 3+3 Longbed (days of yore)

98 C2500 ext cab longbed

Offline Mr Diesel

  • Frequent Member
  • **
  • Posts: 357
  • Aaron
Re: Edelbrock Carb help needed
« Reply #16 on: October 17, 2024, 12:24:31 pm »
I like those parts you referenced. Found a Carter version on Ebay and ordered it too. All look much better than anything I've found locally.
1976 C20 Crewcab, 6.2L/SM465
1982 K30 Crewcab , 427TD/TH400
1983 C30, 6.2L/TH400
1983 K30 Crewcab 454/700R4
1986 K10 350/400. 1989 K30 cab/chassis 454/SM465

Offline Shifty

  • Senior Member
  • ****
  • Posts: 1078
  • I bleed Bowtie red...
Re: Edelbrock Carb help needed
« Reply #17 on: October 17, 2024, 01:43:50 pm »
I like the fact that they don't have built-in nipples so that you can can change sizes, use 45 or 90 degree fittings, or even A/N fittings, or with inverted-seat adapters, can plumb into steel line. 
87 V20 Standard Cab Longbed (current)

87 R30 3+3 Longbed (days of yore)

98 C2500 ext cab longbed

Offline 78 Chevyrado

  • Z62 ON-ROAD
  • Site Supporters
  • Senior Member
  • ******
  • Posts: 2748
    • My Photobucket Site
Re: Edelbrock Carb help needed
« Reply #18 on: December 13, 2024, 02:36:54 am »
Do you have an open air filter element?  Like the edelbrock open elements?  If so that lets the fuel evaporate out of the bowls faster than the stock closed filter housing does. 
Kenny

1978 C-20, 350/400, 3.73, Graystone Metallic, Raceline Renegade 8 Wheels - 18x8.5, 275/70R18 BFG KO's

Offline zieg85

  • Global Moderator
  • Senior Member
  • ****
  • Posts: 7591
    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: Edelbrock Carb help needed
« Reply #19 on: March 10, 2025, 07:04:29 pm »
I seem to have solved my issue.  I installed a 1 way valve prior to my fuel filter.  Filter stays full now and it starts up like a 67 should.  I still need to confirm this when the weather gets hot but so far so good.
« Last Edit: March 10, 2025, 07:09:55 pm by zieg85 »
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/

Offline JohnnyPopper

  • Senior Member
  • ****
  • Posts: 2709
  • Old Goof
Re: Edelbrock Carb help needed
« Reply #20 on: March 18, 2025, 06:51:17 am »
Bravo Zeig!

Sorry, have to ask: What in the world is that spark plug cable bracket doing attached to the carb mounting bolt? Is it there to nestle the filter close to the intake? I don't see any zip ties to confirm, ergo the question... :o

If so, might it do better by elevating the filter to the top side of the MacGyver bracket, away for the hot manifold? Radiant heat will boil out gasoline.  ;D
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline zieg85

  • Global Moderator
  • Senior Member
  • ****
  • Posts: 7591
    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: Edelbrock Carb help needed
« Reply #21 on: March 18, 2025, 09:26:13 am »
Bravo Zeig!
Sorry, have to ask: What in the world is that spark plug cable bracket doing attached to the carb mounting bolt? Is it there to nestle the filter close to the intake? I don't see any zip ties to confirm, ergo the question... :o
Yes, good eye!  It was actually supporting my previous inline filter that was hose clamped to it.  This is a glass filter that I am looking into plastic clamps to re-engineer the support.  I have not run the car that way past starting it and running it for 10-15 minutes at a time.  I still haven't got it out for the season yet.
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/

Offline 78 Chevyrado

  • Z62 ON-ROAD
  • Site Supporters
  • Senior Member
  • ******
  • Posts: 2748
    • My Photobucket Site
Re: Edelbrock Carb help needed
« Reply #22 on: March 28, 2025, 12:32:59 am »
My 67 with this carb pictured runs good once it is started.  Within the last year it refuses to start unless you squirt a little gas down it.  Would this indicate a bad accelerator pump?  This is my first Edelbrock on anything.

Thats a gorgeous car!   I'd start with accelerator pump.
Kenny

1978 C-20, 350/400, 3.73, Graystone Metallic, Raceline Renegade 8 Wheels - 18x8.5, 275/70R18 BFG KO's

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19151
Re: Edelbrock Carb help needed
« Reply #23 on: March 28, 2025, 07:58:08 am »
How long does it have to sit before the hard start happens?
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline zieg85

  • Global Moderator
  • Senior Member
  • ****
  • Posts: 7591
    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: Edelbrock Carb help needed
« Reply #24 on: March 28, 2025, 08:14:29 am »
My 67 with this carb pictured runs good once it is started.  Within the last year it refuses to start unless you squirt a little gas down it.  Would this indicate a bad accelerator pump?  This is my first Edelbrock on anything.

Thats a gorgeous car!   I'd start with accelerator pump.
Thanks, problem solved
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/

Offline zieg85

  • Global Moderator
  • Senior Member
  • ****
  • Posts: 7591
    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: Edelbrock Carb help needed
« Reply #25 on: March 28, 2025, 08:28:31 am »
How long does it have to sit before the hard start happens?

I really can't say due to not driving it much.  Usually it was after a week.  I deducted my fuel filter was empty so I looked further into it and found the fuel line empty.  It was either leaking out, which there were no signs of that, or draining back into the tank seeking the fuel level.  I tried a new Carter fuel pump, which didn't help so either the new one was a dud or something else was going on.  I installed a one way valve before the fuel filter and now the filter stays full and the car starts like a 67 carbureted cars did.  I do plan on replacing all the rubber fuel line which in these models there is more than what GM ever put in them.  It is a rubber line past the frame rail under the drivers side seat to the fuel pump which is about 4'.  It goes up and over the inner fender well and back down to the fuel pump.
Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/