CHAPTER 3
3-4
Engine Cooling System
Outboards use raw water for cooling the engine with intakes at the
gearcase. It is important that this system continues to run unobstructed
at all times to avoid hazardous situations and to ensure a safe voyage.
Raw water is drawn up into the outboard vertical driveshaft housing
through pick-up feeds in the gearcase vicinity. Water passes through
a powerhead thermostat which controls how much water circulates
through the powerhead. The cool water absorbs heat produced by the
engine, before being emitted via the coolant exhaust system.
There is an access hole on the port side of the powerhead which shows
a visual stream of water at all times. If no water is visible with the
engine running shut down the engine and investigate the problem. At
times this relief hole can be plugged by debris.
Impeller/ Water Pump
Periodically, the cooling system water pump and impeller should
be inspected for debris, damage or excessive wear due to use, water
chemistry such as mineral and/or silt conditions. Damaged parts will
affect the system’s ability to function, and may cause engine overheating
or damage. Contact your Regal dealer for more information and
maintenance schedules of key outboard engine systems.
Thermostat
If the temperature gauge starts yielding abnormal readings, it may
become necessary to look at or replace the powerhead thermostat after
determining whether it is functioning properly. The thermostat reads
the temperature of coolant and determines whether to open or close a
valve to allow warm sea water to pass into the exhaust manifold. The
thermostat may recirculate hot coolant for the purposes of reaching
standard operating temperatures. If standard operating temperatures
have been reached, the thermostat will open a valve and allow hot raw
https://www.boat-manuals.com/
Summary of Contents for 33 OBX
Page 1: ...INT INT 1 INT 1 OWNER S MANUAL 3300 33 OBX 07 02 18 https www boat manuals com ...
Page 43: ...1 17 Safety On Board NAVIGATION LIGHT RULES https www boat manuals com ...
Page 46: ...1 20 CHAPTER 1 https www boat manuals com ...
Page 68: ...CHAPTER 2 2 4 Signals https www boat manuals com ...
Page 76: ...CHAPTER 2 2 12 Notes https www boat manuals com ...
Page 91: ...Engine Controls 3 15 https www boat manuals com ...
Page 130: ...CHAPTER 4 4 18 Notes https www boat manuals com ...
Page 160: ...CHAPTER 5 5 30 Notes https www boat manuals com ...
Page 222: ...CHAPTER 6 6 62 Notes https www boat manuals com ...
Page 256: ...CHAPTER 9 9 6 Notes CHAPTER 9 https www boat manuals com ...
Page 272: ...11 8 3300 Bow Rider Dimensions 1 of 2 https www boat manuals com ...
Page 273: ...Technical Information 11 9 3300 Bow Rider Dimensions 2 of 2 https www boat manuals com ...
Page 274: ...11 10 3300 Persons Occupancy https www boat manuals com ...
Page 276: ...11 12 3300 Bow Rider Deck Hardware 2 of 5 https www boat manuals com ...
Page 277: ...Technical Information 11 13 3300 Bow Rider Deck Hardware 3 of 5 https www boat manuals com ...
Page 279: ...Technical Information 11 15 3300 Bow Rider Deck Hardware 5 of 5 https www boat manuals com ...
Page 280: ...11 16 3300 Bow Rider Hull Hardware 1 of 3 https www boat manuals com ...
Page 281: ...Technical Information 11 17 3300 Bow Rider Hull Hardware 2 of 3 https www boat manuals com ...
Page 282: ...11 18 3300 Bow Rider Hull Hardware 3 of 3 https www boat manuals com ...
Page 286: ...11 22 3300 Bow Rider Fresh Water System 2 of 2 https www boat manuals com ...
Page 288: ...11 24 3300 Bow Rider Waste Water System 2 of 2 https www boat manuals com ...
Page 289: ...Technical Information 11 25 3300 Bow Rider DC Head Panel https www boat manuals com ...
Page 290: ...11 26 3300 Bow Rider Helm Switch Panel https www boat manuals com ...
Page 291: ...Technical Information 11 27 3300 Bow Rider Helm Breaker Panel https www boat manuals com ...
Page 292: ...11 28 3300 Bow Rider Volvo IGN MERC Analog EVC https www boat manuals com ...
Page 293: ...Technical Information 11 29 3300 Bow Rider IPA Volvo MERC Analog https www boat manuals com ...
Page 294: ...11 30 3300 Bow Rider IPA Volvo MERC Analog w Garmin https www boat manuals com ...
Page 296: ...11 32 3300 Bow Rider Aft Switch Panel https www boat manuals com ...
Page 297: ...Technical Information 11 33 3300 Bow Rider Windlass Panel https www boat manuals com ...
Page 305: ...Technical Information 11 41 33 OBX Persons Occupancy https www boat manuals com ...
Page 306: ...11 42 33 OBX Deck Plan https www boat manuals com ...
Page 307: ...Technical Information 11 43 33 OBX Main Dimensions https www boat manuals com ...
Page 308: ...11 44 33 OBX Hull Hardware 1 of 3 https www boat manuals com ...
Page 309: ...Technical Information 11 45 33 OBX Hull Hardware 2 of 3 https www boat manuals com ...
Page 310: ...11 46 33 OBX Hull Hardware 3 of 3 https www boat manuals com ...
Page 311: ...Technical Information 11 47 33 OBX Strong Point Cleat Installation https www boat manuals com ...
Page 312: ...11 48 33 OBX Deck Hardware 1 of 5 https www boat manuals com ...
Page 313: ...Technical Information 11 49 33 OBX Deck Hardware 2 of 5 https www boat manuals com ...
Page 314: ...11 50 33 OBX Deck Hardware 3 of 5 https www boat manuals com ...
Page 315: ...Technical Information 11 51 33 OBX Deck Hardware 4 of 5 https www boat manuals com ...
Page 316: ...11 52 33 OBX Deck Hardware 5 of 5 https www boat manuals com ...
Page 317: ...Technical Information 11 53 33 OBX Sling Locations https www boat manuals com ...
Page 318: ...11 54 33 OBX Waste Hose Routing 1 of 2 https www boat manuals com ...
Page 319: ...Technical Information 11 55 33 OBX Waste Hose Routing 2 of 2 https www boat manuals com ...
Page 320: ...11 56 33 OBX A C Hose Routing 1 of 2 https www boat manuals com ...
Page 321: ...Technical Information 11 57 33 OBX A C Hose Routing 2 of 2 https www boat manuals com ...
Page 322: ...11 58 33 OBX Water Hose Routing https www boat manuals com ...
Page 323: ...Technical Information 11 59 33 OBX Fuel Tank Installation https www boat manuals com ...
Page 324: ...11 60 33 OBX Block Overview https www boat manuals com ...
Page 325: ...Technical Information 11 61 33 OBX Typical Switch Panel Breakout https www boat manuals com ...
Page 326: ...11 62 33 OBX Typical Dash Chartplotter Breakout https www boat manuals com ...