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Registered
Join Date: Oct 2002
Location: Orlando
Posts: 629
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Fan and Pulley match/mismatch?
I have an original 914/6 case with a standard crank pulley running a 245mm fan inside a 930 106 102OR housing (this is from a 80-83 911 or 78-89 3.3 Turbo). The outer pully half is p/n 603-421-01-M260 (from a 69-73 911). Does this mix of parts create a problem with the innner and outer pulley surfaces ie..are they different in pitch? What belt should I be running 9.5x710 or 10x710... or 9.5x725 or 10x725? Wow..I hope someone can figure this one out.
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08 Cayenne V6 89 911 Targa Carrera 3.2 75 914-6 Conversion |
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06-03-2013, 07:41 PM
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Join Date: Apr 2002
Location: Massachusetts
Posts: 438
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This thread has I think all the info you need. And I think you should buy the
proper pulley half for your fan. Question on Pully Size - for increasing cooling
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Mark S. '70 914-6 |
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06-03-2013, 10:48 PM
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Location: Orlando
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fan and pulley
Ok I have a late model 245mm fan housing and and earlier mid seventies 245mm fan and pulley. Here is a pic. What belt is correct for this set up 9.5 or 10 x 710 or 725?
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08 Cayenne V6 89 911 Targa Carrera 3.2 75 914-6 Conversion |
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06-04-2013, 05:04 AM
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Join Date: Apr 2002
Location: Massachusetts
Posts: 438
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If you have the crank pulley from 914-6, then everything is early and 710 should be
the right length. I didn't get it before that your fan is old, the housing isn't important.
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Mark S. '70 914-6 |
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06-04-2013, 08:33 AM
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Join Date: Mar 2010
Posts: 799
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I agree, you've got an old (60-73) fan and the right outer pulley half to match the fan.
The housing does not impact the equation.
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1973 Coupe Projekt X (AKA bunch o' boxes full of parts) |
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06-04-2013, 10:42 AM
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