Explain to me the difference.

Discussion in 'General Harley Davidson Topic' started by slayer, Dec 5, 2010.

  1. slayer

    slayer Member

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    Hi all, it has been awhile but here I am with a question noone I know can answer so help me out if you can. Ok, so why do some bikes have the oil tank and why do others not? Also why do they have some bikes with counterbalancers/solid mount and others no balancers and rubber mount. Now for the slippery question,,, which combo is better and why.

    Thanks
     
  2. 173ABN

    173ABN Active Member

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    Wow! that pretty much says it all Smitty
     
  3. Breeze3at

    Breeze3at Well-Known Member

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    To expand a little on Smitty's spot on reply. The oil tank is mounted high on a softail, because the shocks are below the transmission, and occupy the space where the oil pan is on other models.
    Softails have internal balancers because the rubber mounting system of the other models doesn't work with the softail design frame.
    Which is better? The one in your garage of course. :D
     
  4. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    Only one thing to add, oil tank technology is traditional Harley...advantage is you do not have to have oil in sump, so it can be very shallow and engine can be lower in the frame. Also fresh oil held in a separate tank not directly attached to the engine means no preheating of the oil, gravity feed keeps oil pump primed, no air so less chance of "cavitation."
     
  5. Jack Klarich

    Jack Klarich Expert Member

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    Look at Buells, oil tank in a swing arm, now is that clever?:s
     
  6. geezer

    geezer Senior Member Contributor

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    Is the tank on softails also part of the styling? Do they help any with cooling the oil?
     
  7. Jack Klarich

    Jack Klarich Expert Member

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    My take is it was a retro look they were going for:s
     
  8. Hoople

    Hoople Account Removed

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    I am sure it would account for a few degrees on the Good side. It certainly would not hurt.
     
  9. geezer

    geezer Senior Member Contributor

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    I wasn't sure but I remember when I bought my CB 750-4 Honda they said the tank helped cool the oil.
     
  10. SilverFoXD

    SilverFoXD Active Member Contributor

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    Don't forget that the FXR had a rubber mounted engine (the 'R' stood for rubber), the separate oil tank that was standard at the time, and the swingarm pivoted from the frame. Consensus initially said the bike looked Japanese because of the frame but now is considered the best handling of all the Harleys.

    If the MOCO ever decides to build a FXR with the Twin Cam engine, I'll be first in line. :bigsmiley28: