Mailing List flyrotary@lancaironline.net Message #60450
From: John <downing.j@sbcglobal.net>
Subject: Marcotte Re-drive
Date: Sun, 15 Dec 2013 21:29:26 -0500
To: <flyrotary@lancaironline.net>

Kelly, I had a machinist friend do the re-drive, he was advised by gearbox engineers who work for Eaton Corp.  A grove was cut under the propshaft bearings to make a return route for the oil being pumped by the tapered nose bearing towards the propshaft seal.  In the pictures you will see the seal retainer that was installed and in one picture the clear plastic hose is connected between the connectors for the radiator to check that there is flow between the connection points.  Initially I had a hose connected from the fill plug hole and the drain hole to a tank on the firewall and the redrive pumped the oil into the tank and none returned to the gearbox, the oil was pumped out the tank vent onto the firewall, so I must make sure that the oil is circulating the right way before the finial pluming to the oil cooler.  You can see the overflow tank on top of the redrive and no oil came out when this was used as the vent and not the firewall tank vent.  That is were I'm at, at this point in time.  JohnD
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