292 stumbles on acceleration
Thread Starter
|
Senior User
Joined: Oct 2014
Posts: 313
Likes: 1
292 stumbles on acceleration
Hey guys,
I've got a 64 f100 with the 292 and 2 barrel carb. I've noticed that when I push the gas (not choked) it will kind of quit for a half second before it will rev up and then it will stumble. It revs perfectly fine when it is choked though.. Any idea on what's up? I think it's time for a rebuild but could it possibly just need a adjustment?
I've got a 64 f100 with the 292 and 2 barrel carb. I've noticed that when I push the gas (not choked) it will kind of quit for a half second before it will rev up and then it will stumble. It revs perfectly fine when it is choked though.. Any idea on what's up? I think it's time for a rebuild but could it possibly just need a adjustment?
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Definitely, then. Get a can of Berryman's carb cleaner and a genuine autolite or holley gasket/rebuild kit. They are pretty simple to disassemble and reassemble especially with all the websites and YT videos out there.
There should be 4 different accelerator pump arm positions, normally it is in the 2nd for normal temps.
There should be 4 different accelerator pump arm positions, normally it is in the 2nd for normal temps.
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Maybe a couple hours from start to finish, if you count parts soaking. Don't get in a hurry be methodical and you'll do a first class job the very first time. Mostly it's replacing any rubber parts (to include accelerator pump diaphragm and check valve) and gaskets, blowing out orifice and such. Watch the videos, read the forums here and elsewhere and you'll be a pro in no time.
Trending Topics
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
Bogging down, hesitating, stumbling from a dead stop or when accelerating at speed is indicative of a defective accelerator pump and check valve.
1963/64 F100/350 292 would have come with an Auto-Lite model 2100 series 2V carburetor. The carb kit comes with the gaskets, these two parts and etc and is this:
D4AZ-9A586-A (replaced C2AZ-9A586-B) .. 2100 series Auto-Lite/Motorcraft 2V Carburetor Kit (Motorcraft CT-499-D) / Available from Ford & auto parts stores.
Applications: Myriad 1962/74 Passenger Cars / 1963/74 F100/350 / 1966/74 Bronco / 1969/74 Econoline.
1963/64 F100/350 292 would have come with an Auto-Lite model 2100 series 2V carburetor. The carb kit comes with the gaskets, these two parts and etc and is this:
D4AZ-9A586-A (replaced C2AZ-9A586-B) .. 2100 series Auto-Lite/Motorcraft 2V Carburetor Kit (Motorcraft CT-499-D) / Available from Ford & auto parts stores.
Applications: Myriad 1962/74 Passenger Cars / 1963/74 F100/350 / 1966/74 Bronco / 1969/74 Econoline.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
More Turbo
Joined: Jan 2009
Posts: 529
Likes: 14
My 63 292 4sp does the same thing unless I pull the choke out slightly to where the choke just begins to function. Had the carb rebuilt by a reputable mechanic and it still does it. Not much of an issue but kinda annoying so I drive around with the choke slightly on. Wish I knew what is going on, I'll check the accelerator arm position as Tedster suggested.
Maybe someone will chime in with a cure.
Maybe someone will chime in with a cure.
Fleet Mechanic
Joined: Jan 2014
Posts: 1,536
Likes: 278
From: Billings Montana
As ND said. Accelerator pump. May not be any need to open the carb up. Start by changing the accelerator pump diaphragm. When I was driving mine regularly it needed replacement about every five years. Also if it sat for any amount of time it may have stuck and tore on restart. Changing the pump diaphragm is about a 15 minute job.
Thread Starter
|
Senior User
Joined: Oct 2014
Posts: 313
Likes: 1
I'm just gonna do a complete rebuild. I went to NAPA and found the kit for $30 but since the truck is my daily driver I need to find some free time to actually do the rebuild.. Is this the cheapest place to buy it? It seems kinda high for just a bunch of gaskets and things
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
I'm just gonna do a complete rebuild. I went to NAPA and found the kit for $30 but since the truck is my daily driver I need to find some free time to actually do the rebuild.
Is this the cheapest place to buy it? It seems kinda high for just a bunch of gaskets and things.
Is this the cheapest place to buy it? It seems kinda high for just a bunch of gaskets and things.
MSRP: $40.08.
FTE sponsor silverstatefordparts.com online price: $22.08 / Gaudin Ford - Las Vegas NV
FTE sponsor horizonpartsguy.com online price: $24.45 / Horizon Ford - Seattle (Tukwila) WA
Dennis Carpenter (DC) is located in Concord NC (800-476-9653), has the kit listed as C2OZ-9590 / My 2012 DC 1957/66 truck repro parts catalog lists it at $19.50.
Senior User
Joined: Nov 2013
Posts: 106
Likes: 0
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Now I like a cold beer now and then as much as the next guy, but he claims forty five minutes just to remove the 2bl carb off a 64? I think he meant "four to five".
Fleet Mechanic
Joined: Jan 2014
Posts: 1,536
Likes: 278
From: Billings Montana
The guy must be a union mechanic. Estimated time that he listed is 4 hours and 55 minutes. What a laugh. My son and I put my 292 back in the truck and had it running in about 2 1/2 hours. 5 man hours, and it was on the stand with no flywheel or clutch bolted to it yet when we started.