POWER BALANCING OF ENGINE

POWER BALANCING OF ENGINE

 for economy and efficient running of an engine equal power should be produced from each cylinder this is then said to be a owe balanced and it may be necessary to make some minor adjustment to achieve this

1. power produced is related to the quantity of fuel injected and balancing is carried out by small adjustment to individual fuel pump controls

2 .adjustments are limited to ensure units are not overloaded ,exhaust temperature are not excessive and that pump controls still cut off when brought to stop

3. fuel pump rack positions and exhaust and cooling outlet temperatures from each cylinder should be noted

4. equal exhaust temperatures on their own do not necessary show on accurate balance

5.  power balance can be checked by measurement from indicator diagrams by calculating the area of mean high from each cylinder

6. if an engine operates in an unbalanced condition some bearings and running gear may be become overloaded this may cause overloading and bearing failure

7. overload in cylinder may cause piston blow past with the corresponding dangers of overheated or seized piston

8.unbalance will also set up vibrations which if maintained for prolonged periods will cause fatigue from the fluctuating stress induced this may in turn lead to fatigue  cracking of metal in bearings  fracture in studs or bolts, cracks on crankshaft and bed plates,and slackening or failure of holding down bolts

9.for proper balance engine running condition should be normal by observation of the relevant temperatures and pressures particularly exhaust and cooling outlet temperature lubricating oil and boost air pressure, the exhaust should be clear of smoke and there should be no unusual noise or vibration