Fuel Coolers on Comman Rail Engines

[brian eiland]

Are fuel cooling devices necessarily required on common rail engines??

Quote from a friend;
"I had serious fuel overheating problems to the extent that all 4 of my Racors melted! Had a diesel mechanic knowledgeable about common rail fix the system in Key West - he said he had never seen a common rail without fuel coolers on the return nor fuel pumps on the input side of Racors."

[FAST FRED]

As your friend noticed the block adds to the heat of being compressed to 20,000 - 30,000 psi or more, and coolers are required.

The large class 8 trucks ("18" wheelers) with similar electronic controlled engines now install air removers as the fuel gets very agitated as it travels the engine and returns to the fuel tank.FF