Steve Lusardi wrote:
Richard,
Colin's overspeed problem started when he changed the speed of the
alternator. He needs to use an alternator that generates the required power
at the original alternator speed. He may have a Leece-Neville alternator,
but it is not the large magnet variety, if he has to spin it at 8K rpm.
Steve

OK - I've just looked at the military alternators and indeed some do
generate full power at a lowly 2500/3000 rpm. But they are pretty vast
bits of kit and will not readily mount on my engine. The work involved
to fit would immense. A small pulley for £10 and disconnect a wire is
a simple cost effective option. BTW my 240v AC alternator on the same
engine spins up to 14000 rpm quite happily.

CS,
They are not just Military, they are industrial as well. They can be found
on all big trucks, gererators, water pumps and other stationary diesel
applications. I assume you are in England. If so go to www.valkenpower.com
Call or send an email to Jack. They are in Holland and the prices are good.
Tell him Steve sent you.
Steve


"CS" wrote in message
ups.com...

Steve Lusardi wrote:
Richard,
Colin's overspeed problem started when he changed the speed of the
alternator. He needs to use an alternator that generates the required
power
at the original alternator speed. He may have a Leece-Neville alternator,
but it is not the large magnet variety, if he has to spin it at 8K rpm.
Steve

OK - I've just looked at the military alternators and indeed some do
generate full power at a lowly 2500/3000 rpm. But they are pretty vast
bits of kit and will not readily mount on my engine. The work involved
to fit would immense. A small pulley for £10 and disconnect a wire is
a simple cost effective option. BTW my 240v AC alternator on the same
engine spins up to 14000 rpm quite happily.