Johnson Service Bulletin SB-896 - Driveshaft Support

March 28, 1962. Elimination of driveshaft support 302552 on later 1962 40 HP engines.

Johnson Motors Service Bulletin letterhead
March 28, 1962
Bulletin No. SB-896 Gearcases
SUBJECT: Elimination of driveshaft support 302552, 40 h.p. RD(SL)-24 and later RD(SL) model series.
Figure 1 - gearcase with driveshaft support 302552 identified
The first 1962 models of the 40 h.p. RD(SL) series engines were built with the conventional driveshaft support illustrated in figure 1. Later models do not contain this support because of a running change which eliminated the necessity for it.
Absence of this support in such engines is no cause for concern since it was eliminated by a design change on the driveshaft and pinion gear rather than by error in assembly. In servicing gearcases of 1962 - 40 h.p. engines, adhere strictly to the parts catalogs and be certain to install only the parts specified for each model.
JOHNSON MOTORS
W. W. DeWees
W. W. DeWees Service Department
WWD:eb NOTE: Post on your RD (40 H.P.) index.