Become a Patron and get help from Pros

What may cause the reduction in the engine output power with simultaneous reduction of exhaust gas temperature and combustion pressure of single cylinder?

31 Jul '19, 15:25

July 31, 2019, 3:25 p.m.
KnowledgeBase's gravatar image


The fuel injection valve is faulty: nozzle clogged or needle jammed in the closed position. Strong pulsation can be felt with hand on high-pressure fuel pipe. Replace the faulty injector asap.

If no or weak fuel pulsation identified in the high-pressure fuel pipe, most probably the fuel pump failed: plunger get stuck, suction or delivery valve failed, roller with push rod damaged. Inspect and replace the subject fuel pump asap.

permanent link

31 Jul '19, 15:28

July 31, 2019, 3:28 p.m.
cheng's gravatar image

add your answer

MarineProHelp 2018 - 2021