Case 580B gas engine ignition timing marks

Hi All,

I am new to heavy equipment and am breathing life into a 580B that has sat idle for years. I have been lurking on this site and the info has been very helpful and it is responding to treatment (grease / fluids).

I suspect that the ignition timing may be off (too retarded) and I would like to put a strobe on the engine to get the advance timing right. I have looked in the manuals and here but have drawn a blank on finding the timing marks.

Any advice?

Many thx

Case 580B gas engine ignition timing marks