Looks like it was the air coolers, on one of the two engines we solved the problems, T/C is no more surging and temperature is under control.
Now remaining engine no. 2, still surging after cleaning the air cooler, trying to bypass the cooler to check temperature after less than one minute test...
something stupid....
All tests we're doing are with the Ship berthed and fastened on the quay with her mooring ropes.
How this could affect the engine loading condition?
I mean if we run the engine at 25%, is it a real 25% or a bigger loading condition?
If so, will the exhaust temperature be...
Thanks for the answers, thank you very much indeed!
Keith made a good point, infact i also checked gases temperature by a laser thermometer.... same result.
We ordered to check is the complete air cooler system (inlet and outlet), it has been totally dismantled and boiled 24 hrs with water and...
Thamks for the answers.
The engine is 4 strokes.
Governors have been checked and work perfectly.
We comletely dismantled the air coolers, presently circulating Acid and hot water and will remain for aT LEAST 24 HRS MORE. It is our Superintendant opinion that there is not enough air (Air cooler...
Hello,
I'm new at this forum.
I'm the tech Manager for a General Cargo Ship equipped with two Yanmar 8Z 280 ET built on 1990.
After six months inoperative, we started both main engines without any problems but, once increasing the RPM the exhaust gases rised the temperature up to more than...
