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Discussion Starter #1
OK - I know I'm being lazy but I would be really grateful if someone could measure the angle the eccentric crank should make to the horizontal with the cylinders full forward on the Accucraft GS4. Mine have come loose and I need to reset them but can't find anything to help in the user guide.

Robert
 

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684 Posts
Robert,

Crank angle should be 36* when the crank pin is at the 9:00 position (piston at top dead center). The front port should be just shy of getting uncovered by the valve.

I will post up a timing diagram later on.
 

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Discussion Starter #3
Ryan, thanks - I was just trying to avoid disassembling the valves to check on the opening.....

Robert
 
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