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  1. #1
    Senior Member 40m's Avatar
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    Default EX-2 Oil temps

    Currently at 13 hours and see oil temps range between 157-175, what are others seeing as normal operating oil temp?
    Recommendations to increase and to what range.

    40M

  2. #2
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    Default Re: EX-2 Oil temps

    Check out post #139 here http://forum.cubcrafters.com/showthr...mp-Hints/page2

    I think you should try and get temps up around the 180 mark to evaporate off moisture in the oil. I heard that sometimes the location of the probe made a difference in the temps you would see but not sure.

    On mine and others CC340’s, I think everyone was taping off a big portion of the oil cooler trying to get temps up. You can read how the vernatherm works in that post. If yours is varying temps like my CC363i was, it could be for the same reason.

    Quote Originally Posted by 40m View Post
    Currently at 13 hours and see oil temps range between 157-175, what are others seeing as normal operating oil temp?
    Recommendations to increase and to what range.

    40M
    Last edited by Daveembry; 06-21-2019 at 10:36 AM.
    Dave Embry
    "You only live once.......but if you do it right.........once is enough."..

  3. #3
    Senior Member TroyBranch's Avatar
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    Default Re: EX-2 Oil temps

    Yes keep the temps above 180. I generally keep my range 180-200 and adjust the amount of foil tape on the cooler, more or less, to stay within that. This gives some flexibility. Power setting greatly change the oil temp. If you put to much tape on by mistake you can power back to 2100 and you will be amazed at how much heat is reduced. Land take off more tape. Soon you will know what you need for tape based on OAT. I change in the fall and spring. In winter I have tapped the full oil cooler and cowl inlet and just make 180 on a really cold day. I consider -20c cold for reference.

  4. #4
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    Default Re: EX-2 Oil temps

    Mine was staying around 150, even with warmer weather. So I've taped over part of the oil cooler using foil tape (as used for sealing HVAC ducts and available easily).

    You can actually reach in through the cowl inlet to apply the tape with care.

    Reading some earlier posts, it seems low oil temperatures are quite common

  5. #5
    Senior Member Dan L's Avatar
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    Default Re: EX-2 Oil temps

    With a hinged flapper type door are you able to find and in between position? I’m wondering if it is either all or none?
    Flying Carbon Cub EX #11 since 2011

  6. #6
    Senior Member 40m's Avatar
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    Default Re: EX-2 Oil temps

    Quote Originally Posted by Dan L View Post
    With a hinged flapper type door are you able to find and in between position? I’m wondering if it is either all or none?
    Minor adjustments can be made in fact the difference between closed at 192 degrees and partially open 181 degrees was 3/4" of approx 3" of cable position.

  7. #7
    Senior Member stede52's Avatar
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    Default Re: EX-2 Oil temps

    Quote Originally Posted by Dan L View Post
    With a hinged flapper type door are you able to find and in between position? I’m wondering if it is either all or none?

    Dan, to get those minor adjustment you must have the locking push button boden cable otherwise the door will creep open.
    Steve Dentz
    N419LD
    Carnation, WA

  8. #8
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    Default Re: EX-2 Oil temps

    85 hours now on the plane and rarely see temps over 165F with half of the cooler taped off.

    Very much considering the cooler door mod.

    A couple of questions:

    Any issue with the door rubbing against the cooler when fully closed? Looks like the door butts up right next to the cooler welds.

    Also what guage of sheet metal for the door? I think you would want it stiff enough but not overly thick.

    Thanks
    Dan Arnold
    KEUL

  9. #9
    Senior Member stede52's Avatar
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    Default Re: EX-2 Oil temps

    Quote Originally Posted by aeroaddict View Post
    85 hours now on the plane and rarely see temps over 165F with half of the cooler taped off.

    Very much considering the cooler door mod.

    A couple of questions:

    Any issue with the door rubbing against the cooler when fully closed? Looks like the door butts up right next to the cooler welds.

    Also what guage of sheet metal for the door? I think you would want it stiff enough but not overly thick.

    Thanks
    I haven't seen any black residue as a result of rubbing and I've been running it for about 100 hrs. I just used some material I had left over, just want it stiff enough that it won't flex. I think mine is about 1/32", I don't know what gauge that is.
    Steve Dentz
    N419LD
    Carnation, WA

  10. #10
    Senior Member stede52's Avatar
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    Default Re: EX-2 Oil temps

    Here is something I build to eliminate the need for tape, an adjustable flap for the backside of the oil cooler, works great. Since I took these pics I've changed out the friction cable to a button lock cable because the airflow was pushing open the flapper.
    Attached Images Attached Images
    Steve Dentz
    N419LD
    Carnation, WA

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