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Old 04-03-2009, 12:43 PM
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DAVID GAGNARD DAVID GAGNARD is offline
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Quote:
Originally Posted by scootter View Post
Hey David,

I noticed my 850 Demon has more play in the primary throttle shaft then I would think is normal. I put extra springs on it at one time to try and get it to come back farther. After d$cking with that for a while, I took them back off, went to two normal return springs and readjusted the carb. It works a lot better now.

I have the MSD small diameter dist. I completely took it apart and lubed it up. Then replaced the two small plastic pads under the weights. It worked a lot better after that. Besides, one of the plastic pads was missing!!

Scott
Scott;

the secondary shaft has some play, but I would think not enough to cause my problem, but the primary shaft is reallllllllll lose. I checked a couple of old Holley's I have laying around and none had as much play in the shaft as the secondary shaft, much less the primary shaft!!!!!!!!!!!

I ordered a new base plate, the one with the e-z idle thing on it........

Since my cousin has a machine shop at his house, I'm gonna take the old base plate over there and we'll take it apart and drill the shaft hole and make some brass bushings for it and I'll keep it for a spare... Gotta get this motor going and back in the car, cause we're going to the 45th Mustang bash in Ala. in less than 2 weeks!!!!!!!!!!!!

It has been said to me by others that the aluminum the base plates are made of may be a "soft" aluminum for CNC purposes, that with the 2 return springs puts a lot of pressure on the throttle shaft and may have caused the wear problem.........

Gonna go thru the distributor also.............

David
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