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Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: Jcparmley on May 02, 2018, 09:28:41 PM

Title: Where to purchase tapered shaft for high speed fan pulleys (Like Fred Hobe's)
Post by: Jcparmley on May 02, 2018, 09:28:41 PM
Hello

I was reading Fred Hobe's site and he mentioned that he makes some tapered shaft to mount 6.5" high speed pulley's to the squirrel cage fans above the engine.  He says it will cool the engine.  I'm not sure if my engine overheats sense I have not driven it much.  But if these pulleys work then why not use them before I drive through the mountains.  Does anyone know where I can purchase these?  I can't find any info on Fred's page.  Thanks

Jared
Title: Re: Where to purchase tapered shaft for high speed fan pulleys (Like Fred Hobe's)
Post by: chessie4905 on May 03, 2018, 01:42:08 AM
also consider a mister sytem. low in initial cost for the safety benefit it privides. If he says he made them, probably hade a machine shop do them or ordered them from MCI, unlesz they are a custom part.
Title: Re: Where to purchase tapered shaft for high speed fan pulleys (Like Fred Hobe's)
Post by: buswarrior on May 03, 2018, 04:56:26 AM
Custom part.

You will have to have a machine shop make that.

This is custom hot rod territory, totally "build it yourself" because it doesn't exist.

Fred put a high output military engine in a bus, back when such things were considered insane, and re-engineered everything to make it work, better than stock.

And freely shared what he had learned thru his one man retirement bus conversion business.

One of the pioneers who did not have the internet to hold his hand and wipe his nose as he boldly tore into dozens of buses.

The content at Coach Conversion Central is a small fraction of what Fred did to a coach, when it was brought to him for conversion.

Happy coaching!
Buswarrior
Title: Re: Where to purchase tapered shaft for high speed fan pulleys (Like Fred Hobe's)
Post by: Gary Hatt - Publisher BCM on May 03, 2018, 10:09:13 AM
Jared, I sent you Fred Hobe email address in a PM.  Perhaps you can reach him this way.  He authored a lot of articles for BCM a few years ago.
Title: Re: Where to purchase tapered shaft for high speed fan pulleys (Like Fred Hobe's)
Post by: Scott & Heather on May 06, 2018, 03:22:11 PM
I have his phone number somewhere. I've spoken to him on the phone several times. Good man. I wonder who got his awesome MCI?


Sent from my iPhone using Tapatalk Pro
Title: Re: Where to purchase tapered shaft for high speed fan pulleys (Like Fred Hobe's)
Post by: brmax on May 06, 2018, 07:59:55 PM
It may be a good time for your gearbox to be re-sealed if your considering this project. This seems like a typical issue from most owners. The re seal and speedi sleeve for a better seal surface that is. Oh I cannot forget the re rivet the squirrel cages, on & on etc.
That gearbox of yours might already have that taper, can you tell by looking.


Good day

Floyd

ps: it seems like one of them guys had a custom pulley made.
Title: Re: Where to purchase tapered shaft for high speed fan pulleys (Like Fred Hobe's)
Post by: edvanland on May 07, 2018, 09:06:34 AM
Call Luke at S Coach that is where I got my pylley