<VV> Fan belt clearance

[Frank DuVal]

Mark, the needed fan belt clearance is between the harmonic balancer and 
the bracket. Not between the bracket and the engine mount or rear panel. 
It matters not where the engine sits in the bay for changing a fan belt 
(within reason...). Unless it is so far aft the fan belt in under the 
rear body panel.

Adding or removing transmission shims will not change the distance 
between the crankshaft and the bracket that bolts to the crankcase. 
Adding washers between the crankcase and the bracket will increase this 
distance.

If you are running an engine without a harmonic balancer, there is no 
issue, you have what GM built.

Frank DuVal

On 1/12/2012 9:44 PM, Mark Durham wrote:
> John, I run a 62. Before trimming or replacing any parts, make sure your
> engine/transmission package is located correctly in the engine bay. It
> simply may be too far aft. This affects the toe in or out for your rear
> tires, its supposed to be within a certain range. But, I've always had
> enough clearance to get a belt off and back on. Its tight, but doable.  You
> adjust this by removing shims at the transmission end. You need to take a
> look there. If you have more than 4 or 5 shims, this might be your
> problem.To make an adjustment, put a jack under the bell housing to help
> support the weight, and loosen the rear bolt a turn or so so it will slide.
> loosen the forward bolts, remove a couple of shims, tighten those bolts,
> which should slide the engine forward. Check clutch adjustment, accelerator
> rigging, and  shifter adjustment, when done.
> Mark Durham
>