by barrie » Tue Sep 20, 2005 2:14 am
Thanks, Max, I thought it might give much the same revs on a bigger prop, but my test stand needs mods to use one. (I had to put in packing blocks and longer bolts before it would accept an O&R 60.)
I used to use 3:1 but my oil is Aeroshell W100, which I believe may be thinner than SAE 70, so I'm being cautious.
Yes I got 21 in with a bit of fumbling but no resistance. A full set of new ones might be a tighter fit.
I'm sure the intake tube of mine is cast in, and slightly loose. It occurs to me that if O&R made them with screw-in tubes, that would appear on the parts list as a separate item - but not if they were cast in, and they may have changed from cast to threaded; I don't have a parts list for the Custom, however.
Barrie