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90Hey y'all, hoping someone can help me out. I've got a leaky carb that needs rebuilt on my 66 F100 (originally a 352) with a '76 360 in it but I have no clue what carb is on it. I haven't been able to find any meaningful markings on it at all. I was hoping someone would be able to identify it or at least point me in the right direction so I can purchase the right rebuild kit for it. Here's some pictures:
Thanks in advance!
Last edited by Boehc7; Jun 18, 2023 at 10:36 PM.
Reason: typo
Looks like an Autolite. That clock face in first picture behind accelerator pump rod will have a decimal number in center. That is Venturi size. A starting point.
Napa should have a kit, pretty simple to rebuild. Clean, clean, clean. After dissembling, a soak in a closed container of acetone for a day or two will get you started. Then blast out all orifices with a can of carb cleaner. Attack the outside with a brass toothbrush from Horrible Freight.
you can get a screw in fuel filter to replace hose barb screwed into fuel inlet. They were standard on late 65-66 and up.
Guessing accelerator pump is the culprit. Replaced the carb on nephew’s Mustang which was leaking from accelerator pump and another place. That was a generic Canadian rebuilt “fitsall “Autolite. Replacement was a correct 65 Mustang Autolite I had rebuilt and cosmetically restored.
if you do the screw in filter, take your barb fitting with you. Early65 and back had 1/2” inlet. Later carbs with filter had a smaller inlet. 3/8”?
Drove the truck to Napa but they didn't have anyone there that was too good with carbs. Took a wild guess on what rebuild kit to get, and what do you know, upon disassembly of the carb all the gaskets and various pieces seem to be correct! Fingers crossed this stops the leakage. Couldn't get the rubber stopper off of the accelerator pump without ripping it so I left it on. So, now it's getting soaked in berryman carb cleaner. Hoping it doesn't destroy it. Thanks for your help!
Got the carb all cleaned up, went back together good, no gas leaks so far (the vacuum line coming out the back of the carb is leaking, the hose clamp broke and won't tighten anymore. Easy fix). But now, while I'm idling, there's an inconsistent pffting noise pulsing out of the exhaust. pretty quick in frequency but not consistent. This wasn't happening before. I've tried adjusting the jets as well as the idle and choke screws but havent been able to figure it out. Any tips? Would the vacuum leak cause this? Have I just not found the right combination of screw settings? Thanks!
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Carb Identification
