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Old 09-03-2010, 12:12 AM
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Default check those heat risers

I could tell the 68 was running hot on the intake on the way home. I moved the wire harness out of harms way but it milted the plastic off the kick down switch. yesterday I checked the heat riser and found it was movable but vary stiff and stuck in a mostly closed position. the spring was off the peg and it had fallen over center to shot most of the gas across the intake. it never would have caused you any trouble around town. the car did not run hot in the water jacket but boy was the carb hot. been better is it was 10 below for running it down the interstate. so when it's cold check those heat risers and make sure there free and hooked up.
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Old 09-03-2010, 12:16 AM
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blew that set of pictures forgot to wait till the loaded here they are
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Old 09-03-2010, 04:55 AM
Shawn Blyler Shawn Blyler is offline
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I can tell you that the one on my '68 rattles like crazy.....drives me nuts. Have looked everywhere for a new one, but can't find one anywhere. Steinberg says to just take it off, cut out the valve and put it back on.
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Old 09-03-2010, 09:24 AM
Ron Devies Ron Devies is offline
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I replaced them...........no check that.........Tim my mechanic replaced the heat riser on my 64 this year. Of course what hasn't Tim replaced on any of my cars this year. I am claiming him and his wife as dependants for 2010.
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Old 09-03-2010, 09:42 AM
Dwayne Brooks Dwayne Brooks is offline
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Quote:
Originally Posted by Shawn Blyler View Post
I can tell you that the one on my '68 rattles like crazy.....drives me nuts. Have looked everywhere for a new one, but can't find one anywhere. Steinberg says to just take it off, cut out the valve and put it back on.
Did something similar to the '80 S&S... noisy rattles & deteriorated linkage so I welded it in the fully open position
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Old 09-03-2010, 10:18 AM
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Quote:
Originally Posted by Shawn Blyler View Post
I can tell you that the one on my '68 rattles like crazy.....drives me nuts. Have looked everywhere for a new one, but can't find one anywhere. Steinberg says to just take it off, cut out the valve and put it back on.
that may be what happens to this one. if I can't figure out how to get it back. the tab the rides again the stop got weak and it went all the way around let it fall in a all most closed position.
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Old 09-03-2010, 01:11 PM
Jeremy D. Ledford Jeremy D. Ledford is offline
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Hey Ed, tell us and show us more on this 68 M-M!
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Old 09-06-2010, 08:50 PM
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will do. as soon as I get it down off the jack stands. it is a Tony find out of Nebraska if I got the story right. a clean 68 combo with the removable panels.
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Old 09-07-2010, 08:53 AM
Jim Tighe - Deceased 1942 - 2012 Jim Tighe - Deceased 1942 - 2012 is offline
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Been a long time since I had to fool with these things, but would a hand choke conversion be possible here and eliminate the heat riser prob? I still think the manual choke, controlled from the dashboard, was a wonderful device. Doesn't require rocket science to use one, and is just about bullet proof, at least in my experience. Wish I had my '62 Fairlane back. Siiiggghhh........................
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Old 09-07-2010, 10:11 AM
Paul Steinberg Paul Steinberg is offline
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The choke is in the carburetor, and the heat riser is in the exhaust. I guess that if you were creative, you could hook up a throttle cable to the heat riser and manually operate it...
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