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Subject: Stalling on grade

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Kevin Coffey    Posted 12-05-2021 at 12:58:29 [URL] [DELETE]        [Reply] [Email]  
  • Stalling on grade
  • Have a '52 w/new carb and starter runs fine until I drive facing uphill. Surging then stalls, quickly , adjusted floats [twice], full tank of fuel, line clear, runs fine every way but forward up hill ,run backwards, sideways, but point it up ,it's out. 241A Marvel S. Presently rebuilding old original. Removed new carb. 2 times, cannot see where stoppage is occurring. Thanks.

    Dave Blower    Posted 01-17-2022 at 18:54:56 [URL] [DELETE]        [Reply] [Email]  
  • Re: Stalling on grade
  • Stalling on a grade Ford 8N

    Thomas    Posted 01-10-2022 at 23:17:19 [URL] [DELETE]        [Reply] [Email]  
  • Re: Stalling on grade
  • Make sure your governor is working correctly.

    Hockeyboy    Posted 12-08-2021 at 17:37:33 [URL] [DELETE]        [Reply] [Email]  
  • Re: Stalling on grade
  • I had the same issue last week with a knock off carb.The float was set too low and not allowing enough fuel to enter the float bowl. I bent the float arms carefully. This solved the problem for me.

    Zeked    Posted 12-07-2021 at 00:43:23 [URL] [DELETE]        [Reply] [Email]  
  • Re: Stalling on grade
  • I had a 26 Pontiac delivery van with the same problem…….open the fuel valve to the reserve setting. ( about 12 turns) and see if it still happens. There was one hill that I had to back up b/c of fuel delivery problems at high grades

    Good luck 😀
    Zeke

    Dead Eye Dave    Posted 12-06-2021 at 05:08:57 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Stalling on grade
  • New carburetor?? Is it one of these aftermarket carbs from overseas? What did you do with the original? Most here will have the original rebuilt before buying new. May not be the carburetor but......?

    Kevin Coffey    Posted 01-13-2022 at 18:10:55 [URL] [DELETE]        [Reply] [Email]  
  • Re: Stalling on grade
  • I saved the old cast carb and rebuilt it. I think this is what was going on. The new carb had a very different entrance path to the lower central jet. In the old one (very old} there going down the middle on the bottom on each side of the cast plate are "nasal " like slotted holes allowing fuel and generously to the jet formed at a 15 degree angle and at the bottom at the base. The new carb is different. On that same plate area are two small holes [ looked drilled] about 1/8 inch in size. The problem with this its about 3/8 to a 1/2 inch off the bottom. When I took off the new carb off the tractor I left the gas in it and carefully took off the top. when I tilt the carb back far enough the gas is below the holes.

    Kevin Coffey    Posted 12-07-2021 at 14:14:18 [URL] [DELETE]        [Reply] [Email]  
  • Re: Stalling on grade
  • Presently rebuilding the original. Love the cast iron. The other new one is a price over value model . but playing with the calipers they're identical. but I'm missing something.

    Ed Gooding (VA)    Posted 12-08-2021 at 05:31:59 [URL] [DELETE]        [Reply] [Email]  
  • Re: Stalling on grade
  • I have heard from other owners that drilling out the main jet by a tiny amount will solve those types of problems. Since you have your old factory carb, compare the diameter of the main jet in both carbs and see if the jet in the replacement carb is a little tighter.

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