[TR] [Spits] Over Drive Question ????

Randall tr3driver at ca.rr.com
Thu Nov 29 09:20:58 MST 2007


> The unit engages hydraulically.  When the input shaft isn't 
> spinning, there is no hydraulic pressure.

It would be best to make clear which Laycock OD you are discussing, Nolan,
as this is NOT true of an A-type.  An A-type has a hydraulic accumulator,
meaning it can store enough pressure (for awhile) to activate the clutches
even without the input shaft spinning.

> A number of autocrossers and such with a laycock overdrive have a
momentary
> contact button

And (modified) A-type ODs with the early (larger) accumulator.

Randall


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