Author Topic: 350 with quadrajet wont climb a grade  (Read 5032 times)

Offline 88rxna

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Re: 350 with quadrajet wont climb a grade
« Reply #15 on: October 19, 2019, 06:33:55 PM »
Per instructions from bd, i removed the fuel line from the carb and cranked the truck. I got about 4 good squirts before it fizzled out and stopped...  id let it set, try again and it would do the same thing.  Its a single tank truck with a newer tank.
I recently had the bed of so i wonder if i crushed a line enough to starve it? Guess ill be crawling under the truck in the AM.

again, i really appreciate the help!

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1984 custom deluxe C10
4.8 sloppy stage 2 cam with springs
s480
xmax terminator
4l80E

Offline 88rxna

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Re: 350 with quadrajet wont climb a grade
« Reply #16 on: October 19, 2019, 06:58:02 PM »
I also removed the cap during that test to see if i had a vapor lock and it made no difference

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1984 custom deluxe C10
4.8 sloppy stage 2 cam with springs
s480
xmax terminator
4l80E

Offline 88rxna

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  • Posts: 44
  • always learning..
Re: 350 with quadrajet wont climb a grade
« Reply #17 on: October 20, 2019, 03:44:59 PM »
Sigh...

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1984 custom deluxe C10
4.8 sloppy stage 2 cam with springs
s480
xmax terminator
4l80E

Offline JohnnyPopper

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Re: 350 with quadrajet wont climb a grade
« Reply #18 on: October 21, 2019, 03:05:30 PM »
Something sounds weird-

Try repeating what you last wrote and AFTER it dies, look down the carb and pump the accelerator to see if there is gas spraying down or not.

If it's spraying, and it's still dying, it might be ignition.
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 88rxna

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Re: 350 with quadrajet wont climb a grade
« Reply #19 on: October 21, 2019, 08:45:23 PM »
I get lots of fuel to the carb now after replacing the kinked lines..but im waiting on parts for the carb now. The float was cracked and the needle connected to the float had no clip whatsoever.. not sure how it was functioning?

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1984 custom deluxe C10
4.8 sloppy stage 2 cam with springs
s480
xmax terminator
4l80E

Offline JohnnyPopper

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Re: 350 with quadrajet wont climb a grade
« Reply #20 on: October 22, 2019, 02:17:12 PM »
Wow, good catch! I think you will be please with a better running truck when you get the carb rebuilt.
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 88rxna

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  • Posts: 44
  • always learning..
Re: 350 with quadrajet wont climb a grade
« Reply #21 on: October 24, 2019, 04:02:37 PM »
Thanks! Shes running thanks to all of you! Got the parts in today and fired right up!
I had a vacuum guage shipped today too to tune the carb so i guess we will see if i can get it dialed in.
Ive found a few videos on YouTube so lets hope i get it right..lol

Sent from my SM-G920V using Tapatalk

1984 custom deluxe C10
4.8 sloppy stage 2 cam with springs
s480
xmax terminator
4l80E