Systems and scheduled
maintenance
Solé, S.A. C-243 b, km 2 · 08760 Martorell (Barcelona) ·Tel. +34 93 775 14 00 · www.solediesel.com · [email protected]
22
Marine diesel engines. Operator’s manual
5.
Swing ventilation valve into position and fasten.
Crankshaft
–
Position 1
Turn crankshaft until both valves in cylinder nº. 1 overlap (exhaust valve about to close, inlet
valve about to open). Adjust clearance of valves marked in black on photo. Mark respective
rocker arm with chalk to show that adjustment has been carried out.
Crankshaft - Position 2
Turn crankshaft one full revolution (360º). Adjust clearance of valve marked in black on
photo. After the adjustment, the rocking nut should be well tightened while the adjusting screw
is locked so that it does not rotate. NOTE: The adjustment of the valve play must be made after
the cylinder head screws are again tightened.
Inspection (with pressure washer)
1.
Loosen ventilation valve and swing it to the side.
2.
Remove the cylinder head cover.
3.
Do these operations in an authorized Sole Diesel Service. Before adjusting valve clareance,
allow the engine to cool for at least 30 minutes. The oil temperature should be below 80ºC.
4.
Turn crankshaft until both valves in cylinder nº. 1 overlap (exhaust valve about to open).
5.
Locate the crankshaft as showed in the photo of the last page.
6.
If is necessary to adjust the clearance, do as the following:
Adjust valve clearance
1.
Release locknut (2).
2.
Fix the tool (6) on the adjustment screw (1) and adjust the clearance as the following griten:
a.
Fix the magnet.
b.
Turn the feeler gauge of the tool (1). After, turn 90º/150º at the back. IN = 90º / EX
= 150º.
c.
Tightening the locknut (2), using a torque tool (torque 20 Nm).
3.
Repeat the check and adjust the clearance in every cylinder.
4.
Reinstall cylinder head with a new gasket if is necessary.
5.
Swing ventilation valve into position and fasten.
Maintenance task. Compression pressure inspection
Start by:
1.
Make sure the engine oil level, air cleaner, starting
motor and battery are well-conditioned.
2.
Start the engine and allow it to warm up thoroughly,
until 50ºC or more coolant temperature.
Measure the compression pressure on all cylinders:
1.
Remove the injection nozzle from the cylinder head where the compression pressure is to be
measured.
2.
Attach the compression pressure gauge.
3.
Disconnect the stop solenoid connector (the fuel supply shut off) and crank the engine by
means of the starter and read the compression pressure gauge indication when the engine is
running at specified speed.
4.
If the compression pressure is lower than repair limit, check the engine parts affected.
