Posted by SheldonS on February 26, 2008 at 21:54:51 from (76.196.76.43):
In Reply to: Farmall MD posted by JFavor on February 26, 2008 at 16:53:05:
ihc49er#2 said: (quoted from post at 21:54:53 02/26/08) another thing is they will fire right up directly on diesel when you stop them and restart it. and no you dont switch to gas once its cooled off just shut it down.many people think you should run on gas before shut down because it cleans the carbon out of the plugs.simply not true,there is never any diesel combustion at the plugs. if you dont believe it then remove them while your idling on diesel. if those tiny gas valves are doing there job you will have 0 compression leakage .
I copied the page a few weeks back from an original TD-6 owners manual (same D-248 engine as the MD) that states to switch back to gasoline when shutting it down for ease of starting next time.
What you do have to make darn sure of if you do, is that you seat the valves back down to prevent warping (pushing the compression release valve back forward again). This is stated right in the original owners manual as well.
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