Re: Differential Covers

[Gt6steve@aol.com]

Hey Joe, 
I've been stewing on that point for a long time and I think there is an 
inherent pumping action.  There is a passage cast into the case that I think 
catches the high velocity oil slung from the ring gear.  I haven't looked at 
it in a long time but always kept it in the back of my mind as a potential 
spot to tap off a small U tube cooler.

<< 
 Kas Kastner wrote:
 > 
 > I think for short races probably the finned cover and an increase in
 > capacity would be the ticket.  If for anything more than 30 minutes I'd fit
 > a little cooler. Doesn't have to be huge or anything but a cooler would
 > give the extra capacity and cool also.  When testing the endurance cars in
 > 1966 all fitted with disc type LSD (first time we'd tried them) two out of
 > four burned up the pinion seal in less and twenty minutes and the other two
 > were VERY toasty smelling.  The laps were five miles long so that is
 > significant but still twenty minutes is pretty short.  We never had any
 > trouble at all with the locker. Put on a bigger cover with an increase in
 > capacity and still lost one during the event. Back at the shop took those
 > devils out never to return.
 
 
 I am curious how one would connect a cooler to a diff (particularly one on a 
Spitfire).  What troubles me is the fact that there is no inherent
 pumping action that would force the oil through a cooler and back into the 
diff.  How is this done?
 
 Joe (C)