<VV> Fan belt tension

[lonwall@corvairunderground.com]

Mark - First question - How do you know the "hum" is belt related?

Lon
www.corvairunderground.com


On 4/11/2012 12:43 PM, Mark Durham wrote:
> ok all, I've got my tension set as described, loose enough to turn the
> fan, however, I have a belt relate hum at the same rpm in each of the 4
> gears. How do you cure that?
> Mark Durham
>
> Sent from my Windows Phone
> From: Bryan Blackwell
> Sent: 4/11/2012 12:08
> To: chuck mckinley
> Cc: VirtualVairs AA
> Subject: Re:<VV>  Fan belt tension
> Hi Chuck,
>
> The consensus I've gotten from the more experienced Corvair owners is
> you should be able to turn the alternator or generator fan with one
> finger.  Another way to get the same tension is to just grab the idler
> between thumb and fingers and pull straight back for tension.  You'll
> lose your grip instead of over tightening the belt.  You'd be amazed
> how loose the belt can be and stay on.  This is how I set ours, it
> works quite well and I replace belts when they wear out or dry rot.
>
> --Bryan
>
> On Apr 11, 2012, at 12:03 PM, chuck mckinley wrote:
>
>> Speaking of fan belts, I'd like your thoughts on correct tension. I've
>> seen very different ideas on this, from very tight (at the risk of
>> rapidly wearing out the blower bearing) to loose enough that you can
>> just turn the fan by hand with the belt installed. I've tended to use
>> the latter approach, as it makes sense, and there's still enough
>> friction to turn the generator. Comments?
>>
>> Cheers,
>> Chuck McKinley
>> '63 Monza 900
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