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| | | | Joined: Apr 2009 Posts: 54 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2009 Posts: 54 | my 52 has a 57 235,just got it running good but had to change the gas tank.Now i put in new gas and its missing really bad.Could it really be out of time because of better gas.I never had a motor with such quirks.Any ideals? | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Check the spark plugs. The old gas or a rich mixture can carbon them up causing missing.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Jan 2008 Posts: 502 Shop Shark | | Shop Shark Joined: Jan 2008 Posts: 502 | I can't hear it run, you need to be a little more specific, like at what rpm, opening the throttle,under load, what?
Try and pin it down to what cyl is not doing its job, then you can start to look for why it's not.
Start with plugs, ign wires, cap, rotor, valve adj. and the list will grow if you haven't found it there.
Dan
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101st Screaming Eagles
| | | | | Joined: Apr 2009 Posts: 54 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2009 Posts: 54 | Looks like only the number 1 and 3 are firing.The rest of the plugs are soaked? | | | | | Joined: Sep 2009 Posts: 45 New Guy | | New Guy Joined: Sep 2009 Posts: 45 | Why did you have to change your gas tank? It's possible that you have a fouled carb, from crud, water, etc. from the old tank. That happened to me with a VW that I rebuilt. It missed like crazy until I took the carb off and rebuilt it. That solved the problem. | | | | | Joined: Dec 2008 Posts: 1,922 'Bolter | | 'Bolter Joined: Dec 2008 Posts: 1,922 | In my experience, the motor won't run with 4 dead holes.
Your needle and seat are full of debris from the gas tank. | | | | | Joined: Apr 2009 Posts: 54 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2009 Posts: 54 | Ya your right I'm redoing the carb. | | | | | Joined: Mar 2009 Posts: 40 Apprentice | | Apprentice Joined: Mar 2009 Posts: 40 | I have a 1955 235 today it started smoking and missing real bad . I have been in this carb 6 or 8 times including today . finally I think I have found the culprit . piston power ( this is the brass tube with the brass barrel on one end that fits in the upper part or the carb with the big spring in it ) it wasn't getting enough travel because of plaque in the carb body . I rolled up a piece of 220 sand paper like a funny jamaican cigarette and polished it until the barrel moved smoothly , it goes in about 1 16 th into the hole when free . after that it was running like it was touched by god ! Try it , It wont cost a thing . | | |
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