Beautiful Old Merc - Not Mine

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Mc Tool

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jimmbo said:
If it is a 1931-1978 motor, it requires a 10:1 mix. Later engines can run 25:1. TCW-3 is the recommended Oil
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yeah 1931 - 1978 they didnt change , and yes it is 10:1 apparently more to aid sealing the main seals ....such as they are . Dad bought one new in the mid 70's and that was ½ pint to the gallon , the fuel cap had a bit of about 1¼" brass tube on it that when inverted held the correct amount of oil for a tank full of fuel .
I have heard stories that some were used on troop folding landing craft during the war , apparently they can still be found buried on the beaches ...
 
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Mc Tool

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With something ( 2 stroke ) at or near tdc it will run backwards .
I seen it on a motorbike ( Frances Barnet ), unbeknownst to the piolet it started on a backfire ........shoulda seen his face ....all leaned over the handle bars revving the crap outa it in anticipation of doing an epic burnout , dropped the clutch and it reversed onto some stuff at the base of the shed wall , climbed the wall and landed on him :ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO:
 
jimmbo

jimmbo

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Berdink said:
I read for reverse, the motor itself could run backwards.
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That was how the Dockbuster did Reverse. Made for a complicated Distributor Linkage, required Multiple Solenoids to turn the Starter in both Direction, and a Double Bendix for engagement. Rope Starting one of those things was not easy as well as Dangerous, as you not only had to overcome the compression(which was quite easy with 6 small Pistons, but you were also rotating a 12-13 inch Diameter Prop. When that baby fired, the boat was moving, and you could end up out of the boat, if you were Lucky, if unlucky you were on the Flywheel
 
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