[Code of Federal Regulations]

[Title 46, Volume 4]

[Revised as of October 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 46CFR119.420]



[Page 362]

 

                            TITLE 46_SHIPPING



                  (This book contains parts 90 to 139)

 

   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)

 

PART 119_MACHINERY INSTALLATION--Table of Contents

 

                Subpart D_Specific Machinery Requirements

 

Sec.  119.420  Engine cooling.



    (a) Except as otherwise provided in paragraph (b) of this section, 

all engines must be water cooled and meet the requirements of this 

paragraph.

    (1) The engine head, block, and exhaust manifold must be water 

jacketed and cooled by water from a pump that operates whenever the 

engine is operating.

    (2) A suitable hull strainer must be installed in the circulating 

raw water intake line of an engine cooling water system.

    (3) A closed fresh water system may be used to cool the engine.

    (b) A propulsion or auxiliary diesel engine may be air cooled or 

employ an air cooled jacket water radiator when:

    (1) Installed on an open deck and sufficient ventilation for 

machinery cooling is available; or

    (2) Installed in an enclosed or partially enclosed space for which 

ventilation for machinery cooling that complies with the requirement of 

Sec.  119.465(b) of this part is provided, and other necessary 

safeguards are taken so as not to endanger the vessel.