Brunswick Corporation

Gary C Plonske

Wayne M Jaszewski

Randall J Poirier

John A Tuchscherer

Randall R Meisner

An outboard marine engine comprises an internal combustion engine; a lower gearcase, a set of gears disposed in the lower gearcase, the set of gears being configured to transfer power from the internal combustion engine to drive a propulsor to generate a thrust on the outboard marine engine, and a dipstick that extends into the lower gearcase. The dipstick is removable from the lower gearcase and configured to indicate a level of lubrication in the lower gearcase.

Apparatuses and methods for servicing lubrication in a lower gearcase of an outboard marine engine

An assembly method and tool is provided for installing a front driven gear (18) in a torpedo housing bore (24) in the lower gearcase (12) of a marine drive, without hammer blow impacting of the gear. An axial shaft (60) has a front end (62) inserted into the gear and an annular shoulder (66) for press-fitting the gear into the reduced diameter front portion (28) of the torpedo housing bore (24). A front aligner (68) is provided by an annular disc (69) having an outer circumference (70) loosley engaging the torpedo housing bore (24) and having a central opening (72) axially sliding over the axial shaft (60). A rear shaft aligner (76) has a threaded outer circumference (80) threadingly engaging a rear threaded portion (26) of the torpedo housing bore (24), and having a central axial opening (82) axially sliding over the rear end (64) of the axial shaft. The central opening (82) of the rear aligner (76) is extended axially at a stem (84) which has a rear end (86) which is internally threaded (88) and receives a threaded bolt (90) which is turned to engage the rear end (64) of the axial shaft and drive the latter axially forwardly such that its annular shoulder (66) pushes the gear (18) axially forwardly to press-fit the latter into the noted reduced diameter front portion (28) of the torpedo housing bore (24).

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DePere, WI, United States of America

Gary C Plonske