Brunswick Corporation

Thomas J Steffes

Gerald F Neisen

Jeffrey P Ruhnke

Steven L Widmer

Brian S Buchholz

Wesley R Martin

Paul A Feyen

In an internal combustion engine having a cylinder head, a head cover over the cylinder head, a plurality of studs extending upwardly from the cylinder head within the head cover, and a plurality of head cover bolts extending through respective apertures in the top of the head cover and threadingly engaging respective studs to mount the head cover to the cylinder head, a lifting method and tool are provided wherein one or more of the head cover bolts are removed and temporarily replaced by one or more respective tools each having a lower threaded portion threadingly engaging a respective stud, and an upper hook portion above the head cover for engagement by lifting apparatus for lifting the engine. Particular tool structure is disclosed, as well as various lifting techniques facilitated thereby, including balance point lifting, nonbalance lifting, double anchor lifting and triangulation lifting.

Engine lifting method and tool

A crankshaft rotation tool and method is provided to facilitate test and repair adjustments requiring precise indexing of rotational degrees of the crankshaft. The tool engages and imparts rotation to existing bolts mounting an existing pulley to the crankshaft.

Engine crankshaft indexing method and tool

A fuel line cooler (34) is provided for a marine propulsion system (2) having a water cooled internal combustion engine (4) in a heat retentive compartment (5). The fuel line cooler (34) has an inlet (36) in communication with the source (14, 12) of cooling water for the engine (4), and has an outlet (38) for discharging water. The fuel line cooler (34) is cooled by sea water during running of the engine (4). Upon turn off of the engine (4), the cooled water in the fuel line cooler (34) is in heat transfer relation with the fuel and prevents vaporization and or spewing of the fuel.

Growing community of inventors

Fond du Lac, WI, United States of America

Thomas J Steffes