TM 10-3930-671-24 CONTINENTAL DIESEL ENGINE Continental   Diesel   Engines   are   Comet   V   Combustion Chamber Indirect Injection Diesel Engines. The  combustion  chamber  design  has  been  tailored  for the     required     turbulence,     charge     flow,     and     burning characteristics   to   provide   dependable   and   economical heavy duty service. Some of the principal design features are: 1. Individual    Porting    -    of    the    intake    manifold whereby each cylinder is fed with the air charge individually     and     is     not     influenced     by     other cylinders of the engine. This  is  accomplished  by  casting  the  cylinder  head  with individual  intake  valve  passages  for  each  cylinder  and connecting  these  passages  to  an  intake  manifold  which also has individualized passages for each cylinder. 2. Water Jackets - completely surround all cylinder bores to a depth sufficient to cover the hot piston ring  travel,  resulting  in  minimum  bore  distortion for   good   oil   control   yet   maintaining   low   heat rejection to the coolant. CHOICE    OF    FUELS    -    Continental    Industrial    Diesel Engines have been  tailored  for  heavy  duty  operation  for use   with   #1   or   #2   diesel   fuel   that   meet   a   minimum cetane     number     of     45     (see    fuel    recommendations, Section 5). F-135 Section 1 - General Information