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General control line discussion => Classifieds => Topic started by: Bootlegger on December 24, 2021, 06:47:52 AM
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Guy's I am looking for a MC Coy Blue Head and I prefer N I B if possible.. Thanks a lot, and Merry CHRISTmas to all
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Blue head Mccoy's were normally R/C engines.
Is that what you want?
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De, I had rather have a C/L engine, didn't know the difference obliged to you... :!
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De, I had rather have a C/L engine, didn't know the difference obliged to you... :!
The only difference between the Blue Head and Red Head is the Carb and the Blue Head on the R/C version, I do believe. You need to fit a venturi and needle valve to a Blue Head, and then you have a C/L version, but as far as I know, there were no factory made Blue Head C/L versions. The head color was just a marketing thing.
Type at you later and
HAPPY NEW YEAR!!
Dan McEntee
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Guy's thanks for the info, and a healthy and safe New Year
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The McCoy 40 Blue Head was the same as the other 35 & 40 McCoys with a simple air bleed carburetor and an exhaust baffle that would close with the throttle body of the carb via a link. Because of the introduction of the Hi-Low K&B fuel of the time, the end of the piston connecting rod was bushed on a few models, but not all of them.
The bushing helped to reduce the wear on the wrist pin during low throttle operation. This bushed Conrad would also fit in a Red Head. For the most part, they were pretty good engines.
Mikey