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  1. J

    MAC Engine Gaskets

    Hi, I already know that they can be purchased from R-D Engineering. But, I was wondering, of the cadre of successful users of MAC's, what have you used, if anything, as an alternative to the MAC engine cylinder gaskets that seem to grow only in Caddo Mills, TX? What about the other gaskets...
  2. J

    MAC Carburetor Adapter Plate plus Spacer?

    I am finally getting into a teardown and inspection on a MAC 72 I recently picked up and I found not only the typical carb adapter plate, as shown on KB2 plans, but also a spacer plate, full diameter, clear bore, no lip, sandwiched between the carb and the adapter plate. It is also with one...
  3. J

    I want one of these...

    It's still apparently in prototype mode with no production yet, but take a look. Can you say compact, high torque, decent HP to weight ratio, 4 stroke, air cooled, minimal parts, and only 8 bolts? You can see it running at the web site. Notice how it's mounted and how little vibration there...
  4. J

    O-100-3/ 4318F "MAC 90": Connecting Rods

    Here's a shot of what I've got for connecting rods on my MAC 90. Apparently from what I've learned these are "E" rods where the crank shaft end is designed to "float" laterally on the crank shaft being only restricted by the width of the journal on which it rides. Another clue as to these being...
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