Troubleshooting for 1 unit exhaust temperature high

When 1 unit exhaust temperature high it could be problems from p compression or p max

For faults affecting the p compression

1. Exhaust valve leaky
2. Scavenge port choked
3. Piston ring sticky or broken
4. Liner wear

For faults affecting P max

1. Leaky fuel injector,
2. Fuel pump worn out
3. Late injection timing causing after burning

Other faults 

1. Fuel rack stuck in max position 
2. Insufficient cylinder lubrication
3. Scavenge fire in unit

Actions taken: 

1. To check exhaust temperature locally and compare
2. Check fuel rack for free movement, not stuck
3. Check the log book for the time started to rise
4. Check other unit for abnormalities
5. Check other parameters, jacket temperature and pressure, scavenge temperature and pressure.
6. Note the fuel index, engine rpm, t/c rpm, load indicator position
7. Note expansion tank level
8. Inform bridge of situation , request to maintain steady course
9. Take a set of draw cards,
10. Analyze card with sea trail results
11. If temperature keep rising, engine speed to be reduced
12. Take proper precaution before slowing down engine, inform bridge
13. Carry out proper investigation

Power card

If power card indicate lower P com, lower P max, problems would be the mechanical problems, 

1. Exhaust valve leaky
2. Scavenge port choked
3. Piston ring sticky or broken
4. Liner wear, liner crack

Try to eliminate the problem, 

1. Exhaust valve leaky ; Analyze light spring diagram

1. Scavenge port choked; Scavenge manifold pressure increase

1. Piston ring sticky or broken; Under piston temperature increase, scavenge temperature increase

1. liner crack; Expansion tank level drop, cooling water pressure drop

If the power card shows normal P com, low Max, problem are in the Fuel injection system

1. Leaky fuel injector ;Checking of draw card

1. Fuel pump worn out; Check the fuel pressure diagram

1. Late injection timing causing after burning; Check the fuel pressure diagram

After identifying the fault, inform master, ask for time to rectify problem

For Abnormal sea condition,

1) Run on reduced rpm until safe area, maintain a normal watch on unit,

2) Complete incident investigation report sent to office.