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#78251 05/30/2007 7:37 PM | Joined: Apr 2007 Posts: 82 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2007 Posts: 82 | I am having problems keeping my 51 3100 running after starting. It sputters and dies and seems to be flooded. I have researched the forums and have come up with two likely candidates to my problem. By the way, I am running a 1958-69 235 with a Carter YF carb.
Float is stuck or not working
needle valve is gunked up.
I am running fresh gas by bypassing the tank and with clean lines. The truck sat for 10 years.
Question is, how do I go about checking the float and needle valve? I have tried tapping on the outside to free up anything stuck but have had no luck. | | |
#78252 05/30/2007 8:17 PM | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | Purney,
Your problem could be too much fuel or not enough fuel and it's important to figure out which scenario it is to help you troubleshoot the problem. A flooded symptom would be black smoke out the exhaust when the engine finally did start. There might be a strong smell of gas and the plugs would be black and sooty. When the engine did start back up, it would cough and stumble as it cleared its lungs!
Fuel starvation would be a possibility too, but no black smoke or plugs and probably no stumbling when it did start. After a spell of ten years and these kinds of problems, a carburetor rebuild would be a good idea anyway.
Stuart | | |
#78253 05/30/2007 10:59 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | After it dies look down the throat of the carb. If any gas is running into it, it has a float/needle & seat problem. Stuart is correct. Any time a vevicle has been sitting that long a carb o-haul is in order.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
#78254 05/31/2007 3:59 PM | Joined: Apr 2007 Posts: 82 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2007 Posts: 82 | I checked the plugs and they are black and sooty, they are new, so that shouldnt be. they also smell of gas. Looks like its Overhaul time. So then that begs the question.....For a carter YF, who has the best kits? thanks guys. | | |
#78255 06/01/2007 5:51 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Carb king has the best. All the part stores have about the same thing.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
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