john deere 40s

thomasp3409 · Nov 25, 2015

I get small dots off oil on the hood of my tractor when I start it. Was wondering if that is normal.

FBH44 · Nov 25, 2015

I get the same thing out of my red 1950-model tractor. Mine is caused by moisture condensing inside the cold muffler at startup. Moisture is one of the products of combustion from internal comsustion engines. It forms water drolets, then gets blown out with the soot and carbon from this old engine. Small black specs land on the shiny paint. But I believe it is perfectly normal.

Dave H · Nov 26, 2015

Like FB said, check to see what those black dots turn into. If they dry and turn into a black power it is not oil.

thomasp3409 · Nov 26, 2015

They don't dry.

M-MAN · Nov 26, 2015

No it isn't normal. Have you serviced the air cleaner oil bath? No rats nests in breather cap or tube? Did you get the backfiring fixed?

thomasp3409 · Nov 26, 2015

(quoted from post at 09:30:30 11/26/15) No it isn't normal. Have you serviced the air cleaner oil bath? No rats nests in breather cap or tube? Did you get the backfiring fixed?

il bath and cap are clean.Got the backfiring fixed. The first set of points form jd would not open half the time, so had to get a second set. Don't no if oil is leaking through valves to top off cylinder and coming out when I start it

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M-MAN · Nov 27, 2015

Oil through the valves would smoke. Just a thought but your muffler could have been saturated from the previous poor running condition and hasn't been hot long enough to burn it all out yet. Gas seeping by the needle and seat and building in the bottom of the carb is a possibility as well. There is a porous bronze plug in the bottom of the carb to prevent that but most are stopped up and few replace them.

john deere 40s

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