Johnson Service Bulletin SB-765 - Clamp Kit 378091

March 2, 1960. Corrected drilling dimensions for mounting 75 HP engines with clamp kit #378091.

Johnson Motors Service Bulletin letterhead
March 2, 1960
Bulletin No. SB-765 (Supplement to No. SB-736)
Subject: CLAMP KIT, PART #378091 - 75 H.P. SERIES ENGINES.
Referring to Service Bulletin No. SB-736 dated September 14, 1959, we advised you of the availability of clamp kit #378091 and its requirement for mounting the 75 H.P. series engines on display stands, test tanks, storage racks and work bench boards. We also informed you, paragraph 3 under "NOTE", that transom drill fixture assembly, part #378253, would be used to drill the holes for installing the clamp kit. This information is, however, erroneous and must now be disregarded in favor of the dimension chart contained in this bulletin.
In preparing for the drilling operation, first mark a center line on the piece of equipment intended to accept a 75 H.P. engine, i.e., bench board, test tank, etc. This center line and top edge of the engine support then become the bases for all the measurements shown in the dimension chart. Study this chart and make all clamp kit installations accordingly.
Original Johnson drilling dimension chart for clamp kit 378091
Use to mount 75 H.P. series engines on display stands, test tanks, storage racks and work bench boards.
JOHNSON MOTORS
W. W. DeWees
W. W. DeWees, Service Department
WWD:eb