Hamilton Jet HJ212 Installation And Service Manual page 45

Installation and Service Manual
Mounting the engine with the close coupling kit:
For this option, the rear engine mount is on the jet unit. The jet and engine mount have
been designed to take loads well in excess of the normal operating loads. Crash conditions,
however, are unpredictable. It is the owner's responsibility to anchor the engine adequately
to protect personnel in the event of a crash.
Mount the coupling [1] and the engine flywheel adaptor onto the engine.
Fit the Borg Warner adaptor [2] onto the jet unit bearing housing.
Install the engine to the vessel, align and secure.
Refer to drawing: HJ21202005 Close Coupling Kit.
Jet preparation
Install the jet into the vessel. Refer to section: Mounting the Jet Unit on page 5-3.

Place one of the resilient mount o-rings [4] onto the jet bearing housing.

Slide the Borg Warner adapter [2] onto the o-ring [4] with the flats on the flange horizontal.

Insert the second o-ring [4] inside the Borg Warner adapter [2].

Fit the engine mount cap [3] inside o-ring [4].

Lightly grease and insert the 3 screws, [5], flat washers [7] and spring washers [8] into their holes to

engage with nuts [6] which can be slipped into place in the slots in the back of the bearing cap. Tighten
each screw a few turns to ensure the engine mount cap [3] fits on straight.
Once in the slots the nuts will not be able to turn until well beyond the recommended
torque.
Ensure that the engine mount cap has bottomed on the bearing cap; this is important for secure

mounting of the engine.
Tighten the machine screws [5] to the recommended torque.

Engine Preparation
Remove the bellhousing from the engine.

Check that the engine will fit in above the jet intake without the engine sump or sump plug fouling the

intake. Make any necessary modifications.
If there is fouling the choices are:

Use another engine.

Use the H-Bar option.

Modify the engine sump (with manufacturer's approval so as not to void the engine warranty).

Determine whether the bellhousing needs to be cut away at the bottom to clear the jet, and make the

necessary modifications to it.
The bottom of most bellhousings have no role in supporting the engine; they only serve to
guard the flywheel).
Close Coupling Engine Mount
5-7
Installation