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996 What Size Are Eccentrics On Cambelt?

Discussion in '748 / 916 / 996 / 998' started by regcheeseman, Mar 2, 2021.

  1. Need to order a cranked spanner or similar to adjust the eccentric cambelt tensioner, what size do I need? I'm thinking it was 19 -21??
    I'm at work so cant just measure it.
     
  2. I use a normal ring spanner with a 15 degrees angle. It's a 22mm on a 916.
     
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  3. IMG_20210302_194327_5.jpg IMG_20210302_194321_7.jpg
     
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  4. 22-24mm wrench.
    Also recommend a flex head 12mm wrench for tightening the fuji nuts (put new ones on).

    From Chris Kelly:

    "Superbikes have an issue with the belt tensioner locknuts. It seems that not all dealers or mechanics replace the lock nuts with every use. 6mm locking flange nuts are available via any fastener supply house for a reasonable cost. There is no excuse for one of these to work loose and alter your timing because your maintenance guy is lazy. It's kind of a bear getting in there to set and lock the 4V belt tensioners, especially since the rear cylinder is behind the frame. There are two tools that nicely do the job: Snap-On's FHOM12 and XBM2224A 12mm socket and 22/24mm offset wrenches."

    snap-on.jpg
     
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