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Idle adjustment question

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10-14-2003, 11:40 AM
ron
Idle adjustment question
No, I ain't gonna try to power this from my inverter. :-)

I noticed several times during my trip that the idle speed would not return to the "normal" 1000RPM for a warmed engine, but stayed around 2000RPM. Gasoline 454 with all stock stuff except the K&N and snorkel extension. I assume there is a "pot" there on the carb that is responsible for slowing the closure of the butterfly and has become fouled somehow.

Before I start feeling around in the dark, has anyone experienced this type behavior and what'd ya find?

Thanks

BTW: the BRP and areas between Franklin, NC and Waynesville, NC look like they were painted by the hand of God.......He seems to be working down from higher elevations and has reached about the 3500 ft AMSL as of last Saturday.

[This message has been edited by ron (edited October 14, 2003).]
10-14-2003, 03:25 PM
bill h
Ron, you don't say your year, but here is general info.

If you have aftermarket dash air, the idle adjustment is a hex head screw at the forward left corner of the carb. I adjust mine with a 1/4 inch open end wrench. See if yours is fully returning against the idle stop screw. If not, a new or stronger spring may be all you need. Or rebend the end of yours to make it effectively shorter. Or a little dri slide on the linkage. Dri slide is really good for hot areas, as the liquid goes away without leaving any gum, but leaves a deposit of molybdenum disulphide which is a great dry lubricant.

If yours came with factory dash air, there mey be an adjustable solenoid that is the idle stop. Its function is to raise the idle when the dash air is turned on. Make sure it is free and working.
10-14-2003, 04:26 PM
ron
Thanks Bill, that's about what I figured. Mine is an '84 with dash air and the symptom has been slowly emerging so I was getting ready to do a WD40 assault. Good point on using dry-slide. The WD40 would become veneer in minutes as hot as the compartment gets!
10-16-2003, 06:11 PM
Charles
My idle problem was the cruise control cable
10-17-2003, 02:36 PM
ron
Hmmmmm the cc cable huh? Just a lube job or a complete replacement. How did you narrow it down to that cable???
10-18-2003, 02:36 AM
Charles
I disconected the cable to see if it solved the problem and it did. Going to replace the old ARA CC with a new electronic one.
10-18-2003, 12:28 PM
ron
Ahhhh, I forsee a "How Too" article in the near future. :-)

My cruise works but seemed a bit slow to respond at times. Found the bracket which supports the main throttle connection was loose. The rivets had wallowed out over the years. Sure would like to hear how your project comes out.
10-18-2003, 09:06 PM
Bill G
Speaking of speed control, My Regency system works well, but tops out at 67 MPH. Does anyone know how to adjust this unit? I doesn't work quite like the units on gas engines. Bill