Gearcase
On 25 in. and 30 in. models, place the appropriate water tube spacer and grommet on the impeller housing cover.
Spacer
Grommet
After water pump is assembled completely, rotate driveshaft counter clockwise 1/4 turn to unlock and release impeller and key from driveshaft.
Next, pull up on driveshaft and turn clockwise to lock impeller to shaft. This process increases pump efficiency by locking the impeller lower on the driveshaft.
Before installing gearcase, shift rod adjustment MUST be checked. Refer to SHIFT ROD ADJUSTMENT on p. 295.
SHIFT ROD ADJUSTMENT
Check the shift rod height from the shift rod hole to the surface of the gearcase using Universal Shift Rod Height Gauge, P/N 389997.
With the gearcase in NEUTRAL , rot ate the shift rod up or down as necessary for correct adjustment. Once correct height is achieved, rotate rod one half turn or less to direct offset forward.
IMPORTANT: The NEUTRAL detent is a two step design. Make sure the NEUTRAL detent ball is in the center step before checking shift rod height.
Shift Rod Heights
| Model | Type | Height |
|---|---|---|
| 20 in. (L) | “L2”“M2” | 21 29/32 in.(21.906 in./ 556 mm)± 1/2 Half Turn |
| 25 in. (X) | “L2”“M2” | 26 29/32 in.(26.906 in./ 683 mm)± 1/2 Turn |
| 30 in. (Z) | “M2” | 31 29/32 in.(31.906 in./ 810 mm)± 1/2 Turn |
