Yanmar 3JH4E, Service Manual

Page: 81 / 350

2. Inspection and adjustment
61
1) Remove the lubricating oil dipstick and also
the oil filler cap at the top of the rocker arm
cover. Attach the oil drain pump to the dipstick
guide and drain off the lube oil.
[NOTICE]
For easier draining, remove the oil filler cap
(yellow) at the top of the rocker arm cover.
When lubricating oil is absorbed without
removing a oil filler cap, negative pressure
grows big in the crankcase and it may cause
the rubber of the diaphragm cracked.
2) Turn the lubricating oil filter counter-clockwise
using a filter wrench to remove it.
3) Moisten the new oil filter gasket with the
engine oil and install the new engine oil filter
manually turning it clockwise until it comes
into contact with the mounting surface, and
tighten it further to 3/4 of a turn with the filter
wrench.
Tightening torque: 20-24Nm (177-212 lb-in)
4) Fill with new lubricating oil. Refer to 2.2.1(3) for
the standard of the engine lube oil capacity.
5) Perform a trial run of the engine and check
the oil leakage.
6) Approximately 10 minutes after stopping the
engine, check the oil level by using the oil
dipstick. Add oil if the level is too low.
[NOTICE]
When checking the oil level right after the
engine running, the oil level in the dipstick
guide decreases drastically, and the accurate
oil measurement can't be performed because
the pressure in the cylinder block decreases
with the function of the diaphragm in the rocker
arm cover. Therefore, measure the lube oil
level after removing the oil filler cap or about 10
minutes later after stopping the engine.
Applicable oil filter Part No.
119305-35150
Lubricating oil filter
Filter wrench
Dipstick guide
010609-00E