Johnson Service Bulletin #591 (1957) - Upper Journal Oil Seal Installation

Shown here (Fig. #1) is tool #304722, for installing the oil seal on the upper journal bearing of Models FD and RD Series and a view illustrating its use (Fig. #2).

1. This operation must be carefully performed and caution should be exercised to assure that no burrs, nicks or foreign matter exists on surface of the journal. Nicks, burrs or foreign matter will "scratch" the seal surface to permit oil seepage, making installation of the seal useless.
2. Spread thin film of oil on seal surface of the journal (crankshaft).
3. Place new seal in position on the crankshaft (lip down). Push down until it comes to rest against the bearing "squarely".
4. Place tool in position over the crankshaft as shown, then drive home with light tap of hammer.

Note - the older crankshafts were machined with a step at the end of the journal which makes installation of the seal difficult and unsatisfactory unless tool #376605 (sleeve) is used to avoid the step during installation. Crankshafts of later vintage are provided with a taper at the end of the journal, thus sleeve #376605 is not required.

Price - #304722 Tool for installing oil seal - $ .75 each net.

Order from factory direct on enclosed order form.