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Engine Maintenance Manual
Jabiru Aircraft
Pty Ltd
JEM0002-5
Jabiru 2200 & 3300 Aircraft Engines
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ISSUE
1
2
3
4
5
Dated : 2nd June 2015
Issued By: AS
Page: 58 of 103
L:\files\Manuals_For_Products\Engine_Manuals\Engine Maintenance Manual 22 & 33\JEM0002-5.docx
DO NOT drain the oil cooler during a normal oil change. The cooler holds only a small amount
of old oil which has negligible effect on the new oil. Taking the hoses on & off the cooler can
prematurely age the oil lines and lead to hoses slipping off the cooler.
Clean any oil residue from the oil / filter change before returning to service.
9.6
Oil Pressure Relief Valve Adjustment
Required Tools:
Circlip pliers
Screwdrivers
Spanners / Socket Wrench
Parts and Material:
Replacement relief valve plunger (if required)
Additional ¼” flat washers (if required)
Type of Maintenance:
Line Maintenance
Level of Certification:
L2 or LAME (A&P or LSA Repairman / Maintenance)
Return to Service:
L2 or LAME (A&P or LSA Repairman / Maintenance)
Remove the oil filter.
Remove the oil cooler adaptor. Note that to gain sufficient slack in the oil lines it may be
necessary to remove the oil cooler from its mounting.
Remove the circlip and draw the valve assembly out of the case.
Inspect the sealing face of the relief valve plunger. If there are visible nicks or damage
– or if
the plunger is made from brass
– then it must be replaced. If a new plunger is to be installed it
must be lapped to the front restraining washer as noted in the Jabiru Engine Overhaul Manual.
If the pressure of the engine needs to be increased another washer can be added behind the
spring (item 2 in Figure 33 below). If the pressure needs to be reduced then a washer can be
removed.
Re-assemble the valve.
Ensure that the spring is not coil-bound: press on the tip of the oil valve plunger and ensure
there is a minimum of 1mm movement.