Moyer Marine Atomic 4 Quick Start Manual

M
M
oyer
oyer
For installation help, please watch the fresh water
cooling video, found in the video tech tips section,
under the support menu of our website.
Fresh Water Cooling Systems are now used on vir-
tually every marine engine currently being produced
for pleasure sail boats. In addition to the obvious ad-
vantage of preventing corrosion, enclosed cooling
systems allow engines to run at higher and more effi-
cient temperatures; and on boats with hot water
heaters they provide hotter water for domestic use.
Moyer Marine Fresh Water Cooling kits are available in
both a front or side mounted configuration. The front
mounted kit requires two inches of clearance in front
of the engine to accommodate a V-belt driven sea-
water pump which mounts above the starter.
Both front and side mounted kits include all necessary
mounting hardware except hoses and clamps. The
vertical heat exchanger is 16" tall and is designed to
be mounted remotely from the engine.
The exchanger can be located in virtually any loca-
tion on the boat, as long as the filler cap is the high-
est point in the cooling system.
Both front and side mounted kits include a Moyer Marine
501 pedestal pump to move seawater through the heat
exchanger.
M
M
arine
arine
inc.
inc.
This pump uses the same impeller as the MMI 502
flange pump and the Oberdorfer Model 202M series
pumps which are commonly used on seawater cooled
engines.
After installing the kit, the original seawater pump will
draw antifreeze from the antifreeze outlet of the
exchanger (rather than from the seawater thru-hull)
and pump it through the engine. After circulating
through the engine, the antifreeze returns to the anti-
freeze inlet of the exchanger to be cooled and re-cir-
culated (rather than exiting through the exhaust).
The new seawater (raw water) pump receives water
from the thru-hull and pumps it through the seawater
side of the exchanger. When it comes out of the ex-
changer, the seawater is routed to the exhaust system
as before to be discharged.
FRONT MOUNTED KIT INSTALLATION:
(For both kits, please reference illustrations, pages 4-7).
Mounting seawater pump to front mounted bracket
INSTALLING THE POWER TAKE-OFF (PTO) SHAFT:
1) Remove the flywheel cover.
2) Remove all flywheel retaining nuts.
3) Slip the PTO shaft over the flywheel studs. Like the
flywheel, the PTO will only go over the flywheel studs
one way. Make sure that the roll pin in the end of the
crank shaft is well centered so that it will not
interfere with the ID of the PTO shaft (photo 1).
1
Atomic - 4
Fresh Water Cooling Kit
PARTS