2BBL carb problem
Thread Starter
|
New User
Joined: Nov 2006
Posts: 18
Likes: 0
2BBL carb problem
I have 65 F-100 Ranger totally stock 352 original carb and air cleaner. I just rebuilt the carb, adjusted to factory shop manual specs for the accel. pump, truck starts cold and hot just fine, however, falls flat on its face whenever starting out, taking off from a light, ect. or when you stab the throttle until its fully warmed up, and this takes a little while. When fully warmed up, truck runs perfectly, start, stop, punch the gas. I think the flat spot is in the accel. pump action. Truck idles good at all times. I'm ready to scrap this setup for an aluminum intake and edlebrock carb. Truck is miserable to drive until fully warmed up, then it runs great. Any ideas???
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
I have 65 F-100 Ranger totally stock 352 original carb and air cleaner. I just rebuilt the carb, adjusted to factory shop manual specs for the accel. pump, truck starts cold and hot just fine, however, falls flat on its face whenever starting out, taking off from a light, ect. or when you stab the throttle until its fully warmed up, and this takes a little while. When fully warmed up, truck runs perfectly, start, stop, punch the gas. I think the flat spot is in the accel. pump action. Truck idles good at all times. I'm ready to scrap this setup for an aluminum intake and edlebrock carb. Truck is miserable to drive until fully warmed up, then it runs great. Any ideas???
Stumbling, bogging down, hesitating when taking off from a dead stop, or accelerating at speed usually is caused by a bad accelerator pump diaphram and/or check valve.
While the accelerator pump and check might be new, if these parts sat around for several years, they could be dried out and cracked.
Ozone in the air is the mortal enemy of these parts.
When you replaced the pump diaphram, did you remember to install the pump correctly so the round piece of metal that the coil spring rests against...is facing in the right direction?
C4AZ9B559A .. Accelerator Pump Diaphram (Motorcraft CM463)
C4AZ9576A .. Accelerator Pump Check Valve (Motorcraft CM825)
D4AZ9A586A .. Carburetor Kit (Motorcraft CT499D)
These three items fit all Auto-Lite/Motorcraft 2V's (car/truck) from 1962 thru 1974. 1975 and later is not the same.
btw: As original, thru 1966, F100/350's have a manual choke only.
Thread Starter
|
New User
Joined: Nov 2006
Posts: 18
Likes: 0
Carb kit was purchased form Dennis Carpenter last fall, a Wells kit. I believe everything was installed properly. Like I said, the truck runs fine onced warmed up, maybe 10 or 15 minutes of driving, this seems to be a cold issue. Maybe it just needs more choke until its warmed up.
Post Fiend
Joined: Sep 2006
Posts: 14,325
Likes: 14
From: Island Southeast Alaska
Carb kit was purchased form Dennis Carpenter last fall, a Wells kit. I believe everything was installed properly. Like I said, the truck runs fine onced warmed up, maybe 10 or 15 minutes of driving, this seems to be a cold issue. Maybe it just needs more choke until its warmed up.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
Carb kit was purchased form Dennis Carpenter last fall, a Wells kit. 
I believe everything was installed properly. Like I said, the truck runs fine onced warmed up, maybe 10 or 15 minutes of driving, this seems to be a cold issue. Maybe it just needs more choke until its warmed up.
I believe everything was installed properly. Like I said, the truck runs fine onced warmed up, maybe 10 or 15 minutes of driving, this seems to be a cold issue. Maybe it just needs more choke until its warmed up.
D4AZ9A586A (Motorcraft CT499D) = MSRP: $33.42 // FTEpartsguy.com price: $20.05.
Considering all the applications, dang near every autoparts store should carry a carb kit for this carb.
btw: GREEN SALES CO. has the largest stock of obsolete Ford parts on the planet, and is located in Cincinnati...OH
greensalescompany.com / 800-543-4959
Thread
Thread Starter
Forum
Replies
Last Post
towmater
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
3
Jul 27, 2007 12:08 PM
stump cutter
1987 - 1996 F150 & Larger F-Series Trucks
2
Jan 31, 2007 07:25 AM
