Removing the oil pump for pre mix

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Luders
Avgas Sniffer
Posts: 3926
Joined: Fri Jun 18, 2010 11:29 am
Location: Oxfordshire

Removing the oil pump for pre mix

Post by Luders »

Blanc asked if there was a tutorial on removing the oil pump in preparation for the engine to run on premix and seeing as I'm just about to strip an engine to gas flow, I figured I would photograph everything I'm doing, starting with the oil pump removal.

After draining the transmission oil, follow these steps

1. Remove the outer clutch housing
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2. Remove all the inner clutch bolts and remove the inner casing. Note that I have left the water pump housing on, but removed one of the bolts located at the bottom.
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3. Turn the inner casing upside down and remove the "C" retaining clip and remove the plastic gear.
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4. Remove the small pin which is located through the pump shaft and provides the drive between the gear and the pump.
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5. Spin the casing back around and remove the two screws holding the pump to the casing and remove.
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When I reassemble, I will blank off the hole where the pump was with some gasket card and a metal plate cut to size.
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