On a side note, I made a pulley for a Delco mini-alt. I put on my 4a
auto-xer. I'm using the stock belt and made the first pulley to fit the
belt which resulted in it riding on the inside dia and sounding like a
supercharger all year, plus the pully got rather hot after a while. So last
week I pulled out the Machinist handbook and made one to SAE specs, again
out of 6061 T6 aluminum. This one's nice and quiet but it still gets
warm/hot after running a little while. The pulleys seem to be lined up
well. Anyone else ever noticed aluminum pulleys getting hot?
Also wondering. If you go to an electric fan can the crankpulley/fan
extension be replaced with Aluminum or does it act as a ballancer?
Matthew Wilder
'67 TR4a E-prepared auto-xer
http://top.mcttelecom.com/~mwilder/
> I am building a SCCA FP 1500 spitfire engine.
> It will use a TR-7 dampner.
> Does anyone have a source for aluminum crank and flywheel
> pulleys? I would like to get as clsoe to a 2-1 ratio as
> possible.
> Thanks
>
> Matt Matthews
> Houston Tx
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