Would I benefit from an oil cooler?

Discussion in 'Airheads' started by Adrian V, Apr 10, 2018.

  1. sky44

    sky44 Been here awhile

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    good lord that's the prettiest one of these piggies i've ever seen
    #41
  2. Adrian V

    Adrian V Long timer

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    Good info, thanks for that.
    I'm slowly coming to the conclusion that I may invest in something to measure the oil temp for a while and if it seems fine, then I'll leave well alone. If there are spikes on hot days then a re-think may be in order...
    #42
  3. gsd4me

    gsd4me 90% bluff

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    Some more info to help you decide. If you fit an oil cooler and it decides to not play the game for any reason, one of these bypass lines is essential.
    P1000142.JPG
    If you extend the sump, you will also need to re-mark the dipstick. My sump now holds about an extra litre and even when down to the bottom of the dipstick it still has about the amount of a standard sump. One more benefit of the oil sitting lower is there is less crankcase pressure so oil won't be blown out.
    10841581_766304340106721_2081251198_n.jpg
    #43
  4. gsd4me

    gsd4me 90% bluff

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    Sump extension.
    extension.jpg
    On the bike.
    done.jpg
    #44
  5. Adrian V

    Adrian V Long timer

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    Yes good plan.
    Now a really dumb question, why the picture of the dipstick?

    Is extending the oil pick up an easy thing to do?
    #45
  6. gsd4me

    gsd4me 90% bluff

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    Have a close look at the dipstick and you will see the new mark about half way down. That is the new max level.
    Ray Peake can supply the extension plus the pickup. He will also advise on the correct fitting of the pickup, which if not done correctly can be expensive.
    #46
  7. Adrian V

    Adrian V Long timer

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    Ah, I did see the other mark, but didn't know what it was for.....
    Thanks for all the info, I shall investigate :thumb:
    #47
  8. TheBigMuff

    TheBigMuff UNFKNBLVBL

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    Interesting discussion!

    15 years ago when fitting out my Schek i researched this, discussed with Klaus at HPN, Tom Cutter, reviewed Snowbum's articles and Oak's top end manual etc. For me I ended up following the HPN example. HPN enduro sump - much more likely to hole the sump than damage oil lines. HPN thermostat gets the motor up to temperature quicker every start and keeps it cooler when needed. OEM oil cooler kit relocated to head stock to get it out of the way and ready for the Hard Head guards ;~). $25 Siebenrock bypass hose in the tool kit in case of cooler/line damage.

    I found this to be obviously superior to the stock 100pd I ran alongside it for 10 years. Thermostat is necessary with a cooler - BMW made a very ordinary penny-pinching decision to delete a thermostat on the 100pd. For me running thermostat and cooler was obviously beneficial for a smoother running bike in all conditions.

    It was my understanding that a cooler should lower temperatures by 'up to' 20 degrees C when the engine is at its limit. Can't find the reference anymore sorry.

    My only challenge these days is to ride it more...

    YMMV and all that
    Cheers
    Lachlan
    #48
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