Re: McCormick Deering WD-9 Engine Problem Question

Posted by Haas on June 18, 2005 at 18:31:30 from (12.65.48.211):

In Reply to: McCormick Deering WD-9 Engine Problem Questions posted by billcrews on June 18, 2005 at 06:17:50:

Like Geoff, I am amazed it will start with the starter on diesel. Are you using ether??? Best you not be doing that. Also like Geoff says, the starting lever is connected through a linkage to a mechanism that operates butterfly valves in the manifold to direct air though the carb when in gas postion. Also releases the carb float to allow gas to flow. In diesel position, the float should be locked up stopping gas flow. Also the lever works a switch located in a chamber in the front of the manifold to shut off the ignition in diesel position, but it sounds as though you have disconnected that. All this in addition to working the compression release valves. The lever should stay in gas position by itself. You should not have to hold it. You need to get a service manual which will tell how to adjust the linkage. Also be sure your timing is correct, as the breaker point cam only has two lobes and gears between the lobe and the dist rotor so two lobes can work four cylinders. If you have that 180 degrees out, it will not start and will backfire through the air cleaner and likely blow oil out the intake. Hope this helps and good luck!!! When correctly adjusted, these gas start diesels start real easy. My MD rarely turns over more than two times before it catches.

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