Jabiru 2200 Oil Pre...
Clear all

Jabiru 2200 Oil Pressure Fluctuation

3 Posts
3 Users
Trusted Member
Joined: 2 years ago
Posts: 55
Topic starter  


I have experienced a sudden onset of oil pressure fluctuation. Normally, I would read a steady 4.8 kpa in cruise @2900 rpm. In today’s flight, I saw rapid fluctuations in oil pressure during cruise. It would drop to 3kpa in about 1-1/2 seconds. If I lowered the rpm it resumed back quickly to 4.8. Resuming hold @ 4.8 kpi, but it occurred again. I checked the oil level and it was at the minimum line of the dip stick. After adding oil, I saw fluctuations after climb out when I throttled to cruise configuration of 2900 RPM with CHT’s at 250 F and EGT in the 1250’s F. It also fluctuated when I encountered turbulence, it was small movements as compared to the aforementioned. It eventually maintained a steady 4.8 kpa for the rest of the 15 min flight. Any recommendations on what I should look at; oil pump, electrical, possible metal fines causing blockage, pressure relief valve, etc? 

2200 serial number 22A981. 


Alex R. 

Jabiru Support
Member Admin
Joined: 2 years ago
Posts: 141

Hello Alex,

The best way to check is to use a mechanical guage in the engine to confirm the pressure issue.  That seems a bit hard as the pressure drop sounds intermittent.  So I would change the oil pressure sender first.   It is not unheard of for them to fail after some time in service. 


Active Member
Joined: 3 years ago
Posts: 6

I had a similar problem.  New oil pressure sender fixed the problem on my GEN 2 3300.  Nick at Arion Aircraft sells a kit to mount the VDO sender on the firewall which is reported to mitigate the problem.

BTW - mine was spiking up from about 50 pounds to 75-80 pounds.

This post was modified 3 weeks ago by jhmcglynn

John McGlynn