Why did my transmission barf?

Discussion in 'Transmission' started by USMCCWO5, Jun 23, 2008.

  1. USMCCWO5

    USMCCWO5 Junior Member

    419
    26
    0
    Well there I was, happy as a clam, getting gas in Gorman, CA (on top of the grapevine). I am in the shade drinking a gatorade, when I notice oil all over my right saddlebag, side cover, trans top cover, basically all over the top of the tranny and rear cylinder.

    I thought at first it was an engine oil leak from the rear rocker cover. I wiped it all down, checked the engine oil, which was OK, and took off towards Clovis.

    On the way back not a drop of oil leakage.

    My estimate:
    Hauling up the long grade at 80 -85 mph overheated the oil and it blew out of the tube on top of the transmission.

    What is your thought?

    Should I be concerned, I checked the oil and it looks clean and wasn't low.

    Bike is 2007 FLHRC with 103 hot rod engine.
     
  2. Fisher

    Fisher Account Removed

    341
    0
    1
    Overfilling is usually the culprit.Combined with heat/load it will void itself of the excess.
     
  3. glider

    glider Veteran Member

    25,464
    108
    43
    Agree with overfilling, are you sure it was trans oil and not engine oil that blew out the breathers from running that speed? More common for this than trans oil.
     
  4. USMCCWO5

    USMCCWO5 Junior Member

    419
    26
    0
    I am pretty sure of my diagnosis; however, I did check inside the air filter cover-it was dry and oil free.

    I don't want to worry about this on the way to Sturgis in August. I would like to haul as fast as I want (safely of course) with passenger and gear.

    Thanks for everyone on this forum. Can't describe how much I enjoy everyone's contributions.
     
  5. wildspirit97

    wildspirit97 Senior Member

    1,088
    46
    0
    did you check the oil level in the trany? I see you checked the engine oil, but why not check you other levels also? If everything checks out ok I would have to agree......must have been an over filled something......anything with too much oil in it is gonna puke it out till it's not over filled.
     
  6. USMCCWO5

    USMCCWO5 Junior Member

    419
    26
    0
    Yes, I did check the trans; however, that was later when I put a wrench to it. I haven't experienced any oil anywhere since then. Or the 1000 miles before this trip on the new engine. Thanks again everyone.
     
  7. miabagger

    miabagger Member

    7
    11
    0
    Try using Royal Purple in the tranny, ATF Type II in the primary and your regular oil in the tranny. That way you can tell by the color what is leaking. Purple it's the tranny, red it's the primary. Make figuring out leaks a lot easier.
     
  8. USMCCWO5

    USMCCWO5 Junior Member

    419
    26
    0
    Good call on the colors; I have Spectro in the trans now, which is red. Thanks for the tip, I just think my "old" shop overfilled the transmission.