Yanmar 3JH4E Service Manual page 107

(30) Mounting the cooling water pipes (seawater
/ fresh water)
1) Mount the seawater pipes with the hose clips
(seawater pump-heat exchanger).
2) Mount the fresh water pipes with the hose clips
(exhaust manifold – fresh water pump, fresh water
pump heat exchanger).
3) Mount the fresh water pipes (cylinder block-lube oil
cooler, lube oil cooler-fresh water pump)
(31) Mounting the alternator
1) Mount the adjuster on the fresh water pump, the distance piece on the gear case, and then the
alternator.
2) Adjust V-belt tension with the adjuster, and tighten the mounting bolts.
(32) Mounting the starting motor
Fit the starting motor in the flywheel housing.
(33) Mounting the mixing elbow
1) Mount ht mixing elbow on the exhaust manifold outlet.
2) Mount the cooing seawater pipe (rubber hose) with the hose clips (heat exchanger-mixing elbow).
(34) Mounting the intake silencer
1) Mount the intake silencer on the intake manifold inlet coupling.
2) Mount the breather hose with the hose clips (intake silencer- rocker arm cover).
(35) Mounting the fuel filter and fuel pipe
1) Mount the fuel filter.
2) Mount the fuel pipe (fuel feed pump-fuel filter, fuel filter-fuel injection pump).
(36) Electrical Wiring
Connect the wiring to the proper terminals, observing the color coding to make sure the connections are
correct.
(37) Installation in a boat and completion of the piping and wiring
Mount the engine on the engine bed in the engine room of a boat after all engine assembly has been
completed. Connect the cooling water pipes, fuel pipes, other pipes on the boat and the exhaust hoses.
Connect the battery, instrument panel, remote control cable and other wiring.
4. Disassembly and Reassembly
Mixing elbow
(Seawater pipe)
91
Heat exchanger
Seawater pump
Seawater
inlet