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Old 01-01-09, 10:46 PM   #416
Buster_Dee
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Join Date: May 2005
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I think AVGWarhawk is correct about the machanism being part of the fuel system. I was researching early "common rail" mechanical fuel injection, and I found this:

http://oldtacomamarine.com/washingto...1_9/index.html

Figure 3 would be a "slice" down the center of the cylinder, showing only the fuel injector valve drive. The upper, right detail shows the head on the other axis, which now includes the intake and exhaust valves. This is not an MWM engine, and it does not explain why the center arm is (seems?) completely still on the MWM RH 30 clip. However, I've seen at least one more "three valve" clip in which the center arm was moving slightly and immediately after the intake valve, which makes sense. But, as soon as I thought it was clear, i saw this:



There's a small lever at the back that appears to be actuated by the intake valve. Doing the timing in my head, that little guy would be the injector. But, right smack in my face is the large lever as well. And it sure sounds like it is applying air, in time, to start th engine.

Arghh!!!

I'll shut up now

Last edited by Buster_Dee; 01-04-09 at 11:30 PM.
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