BRP Johnson 4HP, Service Manual, Page: 79 / 185

6-5
POWERHEAD
INSTALLATION
INSTALLATION
Installation is reverse order of removal with special attention
to the following steps.
Do not re-use the gasket and the O-ring.
Always use new parts.
1. Check that the oil pump, the plate and the oil filter /
holder are installed in the original position.
2. Install the two dowel pins and the lower cover gasket to
the bottom of the powerhead.
3. Install the powerhead to the lower cover, then tighten the
two bolts to the specified torque.

Lower cover mounting bolt:
10 N·m (1.0 kg-m; 7.0 lb-ft)
4. Remove the two dowel pins from the lower cover, then
install the pins and the gasket onto the driveshaft hous-
ing.
5. Apply Moly Lube to the driveshaft splines.

Moly Lube
6. Install the powerhead / lower cover assembly onto the
driveshaft housing.
7. Apply Silicone Seal to the nine powerhead mounting
bolts and tighten the bolts to the specified torque.

Silicone Seal

Powerhead mounting bolt:
10 N·m (1.0 kg-m; 7.0 lb-ft)