Replacing the pulley on a FC to fix the belt issues

[hsaddock]

Joe:
My 83FC35 has a single belt to the AC compressor – it is a long one,
prone to bouncing around a bit but like Ken mentioned, I have not had
an issue with it coming off and taking the other belts with it. In
fact, I have driven over 30K miles and never had a problem (with that
belt).

There is a modification some folks have done that involves replacing
the alternator pulley with a three groove and using one of those
grooves to run to the AC compressor – I have chosen not to jump into
that mod for the following reasons – 1) I have not calculated the rpm
difference/required at the compressor and 2) what size pulley (and
magnetic clutch ) one would have to have on the AC compressor to
obtain the correct speed, 3) one would probably have to adjust the
position of the AC compressor to allow the new belt configuration to
properly align with the alternator pulley and 4) then how does on
adjust tension of this belt, probably have to modify the AC
compressor mount to allow for a tension adjustment or mount a tension
idler somewhere. I have chosen to run with the factory
configuration, properly adjusted and aligned, it seems to work
fine. But, properly engineered and installed the mod would be an
improvement over the long bouncy belt.

Harry Saddock
83FC35
South Windsor, CT


--- In WanderlodgeForum@yahoogroups.com, "fourrubberfeet"
wrote:
>
> Joe:
> I have a 1982 35 3208T aftermarket turbo engine installed.I have
had no
> problems with belts coming off.I have removed my AC dash unit due
to
> seized compressor bearing.You may want to check that.I updated to a
> Horton air fan clutch and updated my power sterring pump.If the
> compressor bearings are ok I would take a close look at the
alignment
> of the pullys with a straight edge.
> Ken Kalmakoff
> 1982 35 3208t
> Richmond BC
>
> >
> > I am going to purchase an 82FC 3208T that has no A/C belt due to
what
> > the owner says was the tendancy for the belt to come off and take
the
> > other belts with it. He mentioned something about using a pulley
off
> a
> > Mack with 3 v-grooves to replace the 2 groove pulley and routing
the
> > belt differently to prevent the issues.
> >
> > Anybody out there know more details for this. I would like to
get
> the
> > parts ordered early and have them ready when I pick up the coach.
> >
> > Regards,
> > Joe Desmond
> >
>