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My engine has been returned to VW Engines to have a problem fixed with the
oil Cooler set up. (a damaged fitting in the block that needed some work.)
Ron Slender has phoned to say that VW Engines will not be making anymore
Helical Geared PSRU. ( Geared Drives)
Instead, because of the c
I have a belt drive on a Subaru. They are not that
smooth at idle. The belt has to have play so when the
gears worms up it will not brake the belt. my belt is
a 4" belt cut in half.If you try to use the full 4" it
will trap air at the top of the gear and stretch. I
always worry about the belt brak
Phil
Some of my friends fly Challengers, most are Rotax 503's, all are belt
drive.
They have been flying them for years, 10 or more. I don't know any history
or how often they are changed but I've never heard of a belt failure. They
turn 6000+ rpm and seem to hold up well.
These are great litt
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