6066 (1960-1966) GMC Truck Club Bitcoin now accepted here! 
Pay Dues
Pay Dues or become a Site Supporter
 



Go Back   6066 (1960-1966) GMC Truck Club > 6066 GMC Truck Club Forum > General Discussion


General Discussion Sit down and chat with fellow members! Any topics that don't fit other categories goes here.

Reply
 
Thread Tools
  #1  
Old July 10th, 2023, 05:03 AM
Robert B.'s Avatar
Robert B. Robert B. is offline
Member
 
Join Date: Sep 2017
Location: Tulsa, Oklahoma
Truck: 1963 GMC 3/4t, 4x4
Posts: 35
Rep Power: 47
Robert B. is on a distinguished road
Default Carb, fuel filter, any thoughts appreciated.

Question? So my Ď63 305E will run great for a couple miles and then start stalling. Seems like Iím fuel starved and I canít get it cranked again until I let it cool. Have the original Stromberg carb and wondering if I need to get it rebuilt once again or find a replacement?? Any thoughts or advice are welcomed. Thanks so much guys!


Sent from my iPhone using Tapatalk
Reply With Quote
  #2  
Old July 10th, 2023, 12:27 PM
James James is offline
Senior Member
 
Join Date: Jun 2013
Location: Greer, SC
Truck: 1964 GMC 1500 2wd
Age: 68
Posts: 417
Rep Power: 178
James will become famous soon enoughJames will become famous soon enough
Default Re: Carb, fuel filter, any thoughts appreciated.

To me it sound more like a fuel deliverly problem (i.e. fuel pump, plugged filter, or plugged pickup sock in the tank.
Reply With Quote
  #3  
Old July 10th, 2023, 02:35 PM
FetchMeAPepsi's Avatar
FetchMeAPepsi FetchMeAPepsi is offline
-= Dues Paid =-
 
Join Date: Jan 2013
Location: Edmond, Ks
Truck: 1962 4x4 GMC CECILIA
Posts: 1,700
Rep Power: 500
FetchMeAPepsi will become famous soon enough
Default Re: Carb, fuel filter, any thoughts appreciated.

Rings can cause that too. You might do a compression check to see if you have a worn cylinder. Once it warms up it'll separate and you'll get stalling. Before that, it's cold so the rings seat fine against the cylinder walls.
__________________
Step by steps:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Some people are like slinkys. Not worth much but funny as heck when pushed down stairs.
__________________
If the women don't find you handsome, they should at least find you handy.
Reply With Quote
  #4  
Old July 10th, 2023, 07:12 PM
lizziemeister'sV6 lizziemeister'sV6 is offline
-= Dues Paid =-
 
Join Date: Aug 2013
Location: Strawberry Point, Iowa
Truck: 1965 Suburban Series 1000 - 351M with mechancal tachometer - PS & PB & 2 speed Pow-R-Flow automatic
Age: 69
Posts: 213
Rep Power: 121
lizziemeister'sV6 will become famous soon enough
Default Re: Carb, fuel filter, any thoughts appreciated.

Personally I don't think it could be rings - engine metal (piston,rings, block) expands when heated up so the rings would tighten up against the cylinder walls - in theory - but different metals expand at different rates. My thought is it's a fuel issue - leaning toward the sock in the fuel tank connected to the fuel gauge assembly being sucked shut by the fuel pump and starving the engine for fuel.
Reply With Quote
  #5  
Old July 10th, 2023, 09:00 PM
AZKen's Avatar
AZKen AZKen is offline
Senior Member
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,573
Rep Power: 485
AZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really nice
Default Re: Carb, fuel filter, any thoughts appreciated.

I have a list of things to do. One at a time..... and a question.

Question:
Does it start right up with no problem when you first start out at home? Fast start or have to pump and choke and pump?

First action:
1. Drive with gas cap off for a long'ish test drive. report. Don't do anything yet until a few tests like this one are done.

Last edited by AZKen; July 10th, 2023 at 09:08 PM.
Reply With Quote
  #6  
Old July 11th, 2023, 04:51 PM
Jim A Jim A is offline
Senior Member
 
Join Date: Jan 2013
Location: Potter Valley, CA
Truck: 1960 3/4, 4 spd, stepside
Posts: 128
Rep Power: 100
Jim A is on a distinguished road
Default Re: Carb, fuel filter, any thoughts appreciated.

My first thought too was clogged fuel intake.
The good thing is that it is accessible.
Reply With Quote
  #7  
Old July 11th, 2023, 06:29 PM
Robert B.'s Avatar
Robert B. Robert B. is offline
Member
 
Join Date: Sep 2017
Location: Tulsa, Oklahoma
Truck: 1963 GMC 3/4t, 4x4
Posts: 35
Rep Power: 47
Robert B. is on a distinguished road
Default Re: Carb, fuel filter, any thoughts appreciated.

Super, thank you folks, Iíll check it all out this week and let you know. Iím hoping itís not a ring/cylinder issue, and just a lesser fuel related problem. Really appreciate the input!


Sent from my iPhone using Tapatalk
Reply With Quote
  #8  
Old July 28th, 2023, 11:16 PM
Robert B.'s Avatar
Robert B. Robert B. is offline
Member
 
Join Date: Sep 2017
Location: Tulsa, Oklahoma
Truck: 1963 GMC 3/4t, 4x4
Posts: 35
Rep Power: 47
Robert B. is on a distinguished road
Default Re: Carb, fuel filter, any thoughts appreciated.

Well, it appears that after a couple rebuilds over the years, Iím finally going to have to part w/ my old original Stromberg carb (leaking like a sieve) in the Ď63 and get a new one. Therefore I must ask which model you all recommend for the 305E?


Sent from my iPhone using Tapatalk
Reply With Quote
  #9  
Old July 29th, 2023, 01:46 AM
AZKen's Avatar
AZKen AZKen is offline
Senior Member
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,573
Rep Power: 485
AZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really nice
Default Re: Carb, fuel filter, any thoughts appreciated.

Robert, we are trying to help. You seem to be moving ahead on your own while seeking help. You don't report results from any advice given. You assumed it was heat becasue it started when it "cooled" off. You don't say exactly where it's leaking out of carb. Carb leaking is usually stuck or worn float ot float valve. No reason to throw carb out for another which is untested and may need a rebuild.
Anyway, to answer your question, the Jolly legacy pages have your answer under "Carburetor Data". May not be a carb problem. May be two things at once. Running great for a couple of miles does not compute exactly with leak/flooding. Maybe yes, maybe no..... or....Could be what I originally said (vacuum venting lock) or could be what others have said. Testing, not guessing, is how you troubleshoot.

Last edited by AZKen; July 29th, 2023 at 01:59 AM.
Reply With Quote
  #10  
Old July 29th, 2023, 05:01 PM
Jim A Jim A is offline
Senior Member
 
Join Date: Jan 2013
Location: Potter Valley, CA
Truck: 1960 3/4, 4 spd, stepside
Posts: 128
Rep Power: 100
Jim A is on a distinguished road
Default Re: Carb, fuel filter, any thoughts appreciated.

One more really careful rebuild sure sems like a good next step.
It would be nice if you could keep us up to date on the results of other tests you have made.
Good luck.
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
WTB or trade for FUEL FILTER AZKen 1960-1966 GMC Marketplace 2 April 4th, 2016 05:31 AM
Under Cab Fuel Filter 6066gmcguy GMC V6 and V12 Engines 8 September 9th, 2013 06:32 AM
gmc fuel filter Archiver Previous Forum Posts 0 April 20th, 2005 01:02 AM
Fuel Filter Number Archiver Previous Forum Posts 0 June 14th, 2004 01:57 AM
351E fuel filter Archiver Previous Forum Posts 0 May 29th, 2004 02:10 AM


All times are GMT +1. The time now is 12:03 PM.


Powered by vBulletinģ Version 3.8.7
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd 821695305528|1694603032|0
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.