Oil pump

[lenpar]

Will an A65/A50 oil pump with tachometer drive fit an A10 they look identical

[Bess]

Hi lenpar,

                Welcome to the forum 

   The pumps are not interchangeable.

Best wishes...

[Speedy]

The oil circulation has been revered on the A65. The crankshaft worm drive is in the opposite direction, so the  pump turns the opposite way to the A10.

[JulianS]

The A65 pump drive is via the pump gear furthest from the crankcase joint whilst the A10 drives via the pump gear nearest to the crankcase joint so the opposite cut worm is needed so the internals of both pumps rotate in the same direction to give correct circulation of the oil.

The A65 pump worm will not fit the A10 body as it is a bit longer so they cannot get mixed up.