Starting with gas on MD

oliverdave · Aug 8, 2009

I have a problem getting the motor started on gas. Overhauled the carberator last year and it worked fine. Today I even hooked the battery to my pickup and it would not go. Any advice?

M Diesel · Aug 8, 2009

(quoted from post at 12:25:10 08/08/09) I have a problem getting the motor started on gas. Overhauled the carberator last year and it worked fine. Today I even hooked the battery to my pickup and it would not go. Any advice?

MDs can have a few issues with starting on gas.

Off the top of my head...
1: The carb gets gunked up and the jets plugged. Modern gas icks them up quick. I had to pull the carb on a TD18 the other day that was sparkly clean last fall. Main jet completely coated with something that resembled paint.

2: The intake manifold does not snap over to the gas side. Most don't know it but the butterfly shaft is not pushed into place. It is merely pushed past center and a snap over spring pulls it the rest of the way. Obviously it has to snap closed, and may not go completely shut.

3: The mag snap coupler quits.

4: Over choked and flooded. Very very easy to do on an MD.

5: Float sticks shut. See #1.

My two bits.

sflem849 · Aug 8, 2009

Ditto.
I would like to add you WILL hear it snap over. If not you have a problem.

You didn't mentioned if you have spark or fuel. I would certainly check for spark, I have heard a lot of problems about the mag grounding out. Read your OEM catalog, they have the part to fix it and it says something like "common problem for no spark condition"

oliverdave · Aug 9, 2009

Thanks guys!

Starting with gas on MD

oliverdave

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M Diesel

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sflem849

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oliverdave

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