Enclosed Clutch and Gears

Discussion in 'Frame Mounted Engines' started by Stoltzee, Oct 1, 2012.

  1. Stoltzee

    Stoltzee Member

    I remember when I was a kid our mini bikes and go carts had centrifugal clutches that were open with a gear on them. Now the clutch and gears are enclosed. It seems to me this would allow for more heat to accumulate. I can understand the safety factor for when things fly apart or explode, but the clutch could have a couple of slots next to the block to allow a little heat dissipation. Also the gears sling the grease out from the gears, so why couldn't there be a couple slots on the sides of the case. Has anybody else ever pondered this.:idea:

  2. wheelbender6

    wheelbender6 Well-Known Member

    I would guess that dirt and moisture are bigger enemies to the modern driveline than heat. However the biggest reason is probably safety. They don't want to get sued over injuries from moving parts.
  3. Txsandman

    Txsandman New Member

    Yes stoltzee I agree. I run my bike without the clutch cover. Other wise the oil build up will lead to the clutch slipping.
  4. butre

    butre Well-Known Member

    if oil is getting into your clutch that means you have a blown crankcase seal. instead of riding with an open cover that might chew up your leg (I've seen it happen a hundred times) try fixing the problem.
  5. Txsandman

    Txsandman New Member

    Well I don't have any problem. I just chose to take the plate off. Also seems to make less noises. But thanks for your advice anyways.
  6. KCvale

    KCvale Motorized Bicycle Vendor

    It would sure help to know what specific 4-stroke transfer case you are talking about.
    If it happens to be the one gasbike sells in it's 4-stroke kits, it's crap, period.
    Heat won't even be a factor, bearings and chain that can't be adjusted do you in.

    Um, no disrespect intended, but you propose cutting slots so it can spew grease and oil out of it when it runs?
    I suggest you think about where that will go ;--}

    I use T-belt systems, they don't require any lubrication, and their 'guard cover' is well vented.