Volvo Penta V8-350 Instrucciones De Instalación página 5

Purpose
This instruction provides procedures for replacing the
heat exchanger.
Parts Included:
qty Pos P/N
1 22247497
1 D 3863438
1 L 3860413
1 M 3863445
1 U 3863445
1 V 3860413
1 W 3863445
1. Drain sea/raw-water from exchanger;
See decal on exchanger.
Loosen clamp and remove hose at C.
Loosen nut A.
Lower cap and gasket to drain water.
WARNING! Ethylene Glycol coolant is
poisonous to humans and animals
if ingested.
CAUTION! Ethylene glycol coolant is an eye
irritant. Wear eye protection when
working with coolant.
2. Drain coolant from exchanger;
Remove clamp at D at bottom of exchanger.
Move hose off of nipple on exchanger.
To ease removal of the exchanger, disconnect the
thermostat housing from the exchanger and leave the
housing attached to the hoses.
3. Remove engine cover.
4. Loosen the clamp E securing the flame arrester F.
Remove the hose G from the flame arrester.
Move the flame arrester off of the throttle body and
to the right. This improves access to the bolts in
the next step.
Be careful, do not damage the wiring to the sensor.
5. Remove bolt J.
Move the expansion tank H to the side to access
the by-pass hose/clamp.
6. Cut the clamp L on by-pass hose K. Remove the
hose from the nipple on the heat exchanger.
7. Move top hose on the thermostat housing to
access the housing bolts;
Remove clamp M.
Lift hose N up, then move aside.
8. Remove the 4 bolts P holding the thermostat
housing Q to the exchanger.
Tip: access bolts from rear with a long extension
and swivel socket (10mm).
Discard seal R and thermostat S.
VPA 47704851 08-2013
Description
Heat exchanger
Clamp, hose, circ. pump
Clamp, hose, by-pass
Clamp, hose, thermostat
Clamp, hose, expansion tank
Clamp, hose, fuel cell
Clamp, hose, to tee
9. Cut the band clamps U, V, and W securing the fuel
cell hose, expansion tank hose and the hose to the
tee on the rear of the engine.
Move the hoses off of the nipples on the
exchanger.
10. Remove 5 clamps holding exchanger to brackets.
Remove the exchanger.
Thermostat housing should remain connected to
the hoses.
11. Remove the thermostat housing Q from the new
exchanger.
Move the seal R and thermostat S to the original
thermostat housing (still attached to hoses).
12. Make sure alignment mark B is on bottom of new
exchanger.
13. Mount new exchanger on the brackets and secure
with the 5 clamps.
Make sure the rubber cushions are between the
brackets and the exchanger.
14. Make sure bushings T are in mounting holes.
Attach thermostat with the 4 screws.
Tighten in a crossing pattern.
Torque to 10 Nm (8 ft.lbs)
15. Reinstall expansion tank.
Torque bolt to 34-40 Nm (25-29 ft.lbs)
16. Reconnect all hoses removed above. Secure with clamps.
Replace the Oetiker clamps with the worm clamps
listed at Parts Included.
17. Reinstall the flame arrester and hose.
Install engine cover.
NOTICE! This engine uses only Volvo VCS coolant.
Do not add other coolant types to these
engines. Other coolants are not compatible
with the VCS, and will cause the coolant in
the engine to gel. Extensive cleaning is
required to correct this situation.
18. Top-off cooling system after hoses are connected.
Run engine, check for leaks and correct coolant
level.
NOTICE! Make sure engine has sufficient cooling
water if running on a hose. Monitor engine
temperature and alarms while engine is
running.
NOTICE! Check engine coolant for proper freeze
protection level.
Dispose of all coolant and shop materials
according to local environmental regulations.
3