Johnson Service Bulletin #651 (1958) - Connecting Rod Roller Bearing Retainers

Issued June 15, 1958, this Johnson factory bulletin explains why the two halves of a connecting rod roller bearing retainer on RDS and V-4 engines must be kept together as a matched set. The retainers are machined as a single piece before being split, and the factory recommends tying the halves together during repair to prevent mixing.

Johnson Service Bulletin letterhead
June 15, 1958SERVICE BULLETIN #651
MODEL RDS AND V4
RDS & V4 CONNECTING ROD ROLLER BEARING RETAINER
Factory photograph of split connecting rod roller bearing retainer for Johnson RDS and V-4 engines

Illustrated here is a connecting rod roller bearing retainer for RDS & V-4 engines.

Extreme caution should be used on disassembly or assembly to be sure that the retainers are kept as matched sets.

The retainers are machined as one piece, later split in half to permit assembly on the crankpin. The halves are not interchangeable and must at all times be kept together. Neither can they be placed or turned end for end on assembly.

Recessed or grooved ends must always be matched together and assembled accordingly. A good idea is to wire or tie the halves together in the event there is a possibility of mixing during repair procedure.

JOHNSON MOTORS
Walter McLeod
Walter McLeod
Service Department
WM/aks
Superior Service Spells Satisfaction

Service note

Applies to Johnson RDS and V-4 engines. Connecting rod roller bearing retainer halves are factory-matched and must not be interchanged or reversed end for end.

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