<VV> Early vs Late Fan

Frank DuVal corvairduval at cox.net
Sat Mar 3 18:24:50 EST 2012


The reason not to do it is there are few 64 style fans in used parts 
stashes.

There are many many 65 to 69 style fans out there as used parts.

Ever try to find a 64 style fan when you need one?

Frank DuVal

On 3/3/2012 6:17 PM, Bob Gilbert wrote:
> Thanks to everybody who replied. I should have noted that the fan I had was
> a 64. My friend and his lathe made short work of the differences between the
> center holes and the large fan hub. The retaining holes were identical.
> Regards,
> Bob
>
>
> -----Original Message-----
> From: Bill Hubbell [mailto:whubbell at verizon.net]
> Sent: March-03-12 10:23 AM
> To: Mel Francis
> Cc: Bob Gilbert; virtualvairs at corvair.org
> Subject: Re:<VV>  Early vs Late Fan
>
> Just to confuse the issue, the 1964 fan is exactly the same style as the
> 65-69 except for the bearing holes.
>
> Additionally, there are two different styles of earlier fans -the "open
> center" style seen on 1960-61 and the "vaned center" style for 62-63.  I do
> not have the exact dates that they changed over from the first style to the
> 2nd.
>
> Bill Hubbell
>
> On Mar 3, 2012, at 10:07 AM, "Mel Francis"<mfrancis at wi.rr.com>  wrote:
>
>> The lighter, late fan design, resists fan belt tossing better than the
>> early design.
>>
>> While the early fan does flow a bit more air, it is a bunch heavier
>> and its inertia causes the belt to stretch, then bunch up during fast
>> gearchanges.
>>
>> Mel Francis
>>
>> ----- Original Message -----
>> From: "Bob Gilbert"<bgilbert at gilberts-bc.ca>
>> To:<virtualvairs at corvair.org>
>> Sent: Saturday, March 03, 2012 11:46 AM
>> Subject:<VV>  Early vs Late Fan
>>
>>
>>> Hi,
>>> Other than the different hole in the middle and the retaining bolts
>>> on a different radius are there any other differences between an
>>> early and a late fan? I have a friend who could drill out the main
>>> hole for me plus drill new holes in my early fan/pulley to make it
>>> fit my late bearing hub.
>>> Before I say yes, is there any reason that I shouldn't do this?
>>> Thanks,
>>> Bob
>>>


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