Jabiru 2200 Oil temperature

Australian designed and manufactured Jabiru Aircraft/

Moderator: Moderators

Jakes
Pre-take off checks
Posts: 84
Joined: Mon Jun 04, 2007 3:21 pm
Closest Airfield: Louis Trichardt
Location: Louis Trichardt, Limpopo
Has liked: 0
Been liked: 0

Jabiru 2200 Oil temperature

Unread post by Jakes » Mon Jan 14, 2019 12:28 am

Good day all,
I have experiencing higher than normal oil temperatures in my Jabiru SP470 and have a few questions regarding possible solutions

I have been experiencing oil temperatures between 95 in the cruise and 106 degrees Celsius in the climb on a summers day of 27+.
All 4 CHT's and EGT's are always normal/in the green.
I would think that this is too high and would like to get the oil temperature closer to 85 in the cruise and 90 in the climb. I suspect insufficient airflow to the oil cooler.
I bought the Jabi with some modifications made to the cowl and specifically an opening that was cut in front of the oil cooler below the standard square opening on the SP's at the time. I call it an opening, because no duct was installed and sealed to the oil cooler. (See attached photo). I have the finned oil sump on my 2200.

I have the following questions:
1. How important is airflow over the finned oil sump? The current cowls only have the one NACA ducts - "smiley face" opening for the oil cooler.
2. Is there a newer version or model oil cooler available from Jabiru that is more sufficient? See attached photo of my oil cooler.
3. Is it crucial that the oil cooler should be installed at a 45 degree angle or not? Mine is at 90 degrees - see photo.
4. Will I be able to buy a cowl from Jabiru with the NACA duct that will fit on the older Jabiru SP models or do I need to do the mods myself?
5. I see 2 possible sollutions for more sufficient airflow over the oil cooler I I need to do the modifications:
- Install one DACA duct in the cowl, like current models, and close the square duct at the top - OPTION A(see photo) OR
- Install a regular duct that is effectively sealed to the oil cooler and leave the top square opening open as well - OPTION B (See photo)

Hope you guys can help me if somebody has done some mods to their cowls on older models.

Regards,

Jaco
You do not have the required permissions to view the files attached to this post.
Addicted to the smell of AVGAS!
User avatar
Flooi
Frequent AvComer
Posts: 873
Joined: Fri Apr 20, 2012 10:29 am
Closest Airfield: FAHG
Location: Nigel
Has liked: 49 times
Been liked: 19 times

Re: Jabiru 2200 Oil temperature

Unread post by Flooi » Mon Jan 14, 2019 9:49 am

just a question... has the oil temp always been like this or is it something new?
AND... what maintenance preceded the change in oil temp?
Hennie van Zyl
Jakes
Pre-take off checks
Posts: 84
Joined: Mon Jun 04, 2007 3:21 pm
Closest Airfield: Louis Trichardt
Location: Louis Trichardt, Limpopo
Has liked: 0
Been liked: 0

Re: Jabiru 2200 Oil temperature

Unread post by Jakes » Mon Jan 14, 2019 10:20 am

Hallo Flooi,
Flooi wrote:
Mon Jan 14, 2019 9:49 am
just a question... has the oil temp always been like this or is it something new?
AND... what maintenance preceded the change in oil temp?
Just after I bought her I did the topend overall......done about 50 hours since then, but most of it in the colder winter months, therefore I didnt experience the high end temperatures. Since the summer months I experienced higher oil temperatures.

Jaco
Addicted to the smell of AVGAS!
User avatar
Flooi
Frequent AvComer
Posts: 873
Joined: Fri Apr 20, 2012 10:29 am
Closest Airfield: FAHG
Location: Nigel
Has liked: 49 times
Been liked: 19 times

Re: Jabiru 2200 Oil temperature

Unread post by Flooi » Mon Jan 14, 2019 3:09 pm

Jaco. Volgens die POH, is tot 100 gr C normaal. Praat met Danie by 083 457 7794
Of Leon by 083 736 3969
Beide is Jab AP's en uiters behulpsaam.
My 2200 Jab has the 'option B' cowling and runs at about 90 deg on hot day in cruise.
Looking at the size of the oil cooler and your current cowling- this might be your problem.
Hennie
Hennie van Zyl
User avatar
Rafale
Preflighting
Posts: 20
Joined: Fri Oct 12, 2012 8:06 am
Closest Airfield: Bloemfontein
Location: Bloemfontein
Has liked: 0
Been liked: 0

Re: Jabiru 2200 Oil temperature

Unread post by Rafale » Sat Jan 19, 2019 1:34 pm

Ek het Okt 2017 my SP 120 gekoop. As tweedehaands 2001 model met ń 2200 engine wat 120 ure op gehad het. Baie probleme met hitte gehad gedurende somer. Het tot 110 grade geloop. Ek het ducting volgens manual probeer regmaak. Bietjie gehelp maar steeds nie na wense in die somer. Bloemfontein hitte erg en meesal bo 30 grade gedurende somer. Ek het die koeler na Silverton geneem en ń grooter en dikker een laat maak. Hulle het alle spec ten opsigte van pressures nagekom. Gewaarborg en gesê dit sal verkoeling omtrent 40% verbeter. My probleme is op ń einde. Ek vlieg in temperature bo 30 grade en sy loop teen 80 grade met 90 maks in klim teen 3000 rpm. Het so R4k gekos maar absoluut moeite werd. My olie kleur is baie ligter en beter na 15 ure. Voorheen het dit vinnig verkleur na donker.
Ek het ń vermoede die engine verandering vanaf solid lifters na hidrolic lifters (soos gedoen deur ń vorige eienaar) het tedoen gehad met die hitte veranderings in temperatuur.
User avatar
ZuluBen
Six Tousand
Six Tousand
Posts: 6593
Joined: Mon May 09, 2005 4:54 pm
Location: Gaborone, Botswana
Has liked: 6 times
Been liked: 3 times

Re: Jabiru 2200 Oil temperature

Unread post by ZuluBen » Sun Jan 20, 2019 10:41 pm

Maak seker jy seels die cowl om die oil cooler sodat alle lug wat inkom deur die olie koeler gevorseer word en nie om hom "ontsnap" nie.

Olie net oor 100 in die klim is eintlik gewens want jy kook die water in die olie uit.

90 grade in cruise is piekfyn.

Return to “Jabiru”