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Date: Sun, 19 Jul 2009 16:44:41 -0700
From: Dale Rogers <dale.r@cox.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Off topic sort of
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Maybe this has been covered already and I just flat missed it, but ...

It is absolutely essential that a V belt NOT bottom out on any of the 
pulleys. The service life of the belt will be dramatically shortened.

Put a thin line of prussian blue at the very bottom of each pulley and 
install the belt.  Mark one pulley and the belt that touches it with 
tire crayon (usually yellow).  Turn the engine enough to get one turn of 
the largest pulley, then pull the belt. If any part of the belt got blue 
on it, then that pulley is too wide.

Dale R.
COZY MkIV #0497
Mesa, AZ


Michael McMahon wrote:
>
> Me too! I have a 1984 Itasca with a Chevy 454 engine (I think) that 
> started burning up belts. I was in the midst of having some other work 
> done at truck place since I didn’t have the proper tools or time to 
> lift the rig to changes tires etc…  Took it back to them three times 
> with busted belts, each time they told me something new they’d tried.  
> I don’t think we ever got to the bottom of it, we wound up buying a 
> new RV around the same time.  But I’m about to pull the old one out of 
> mothballs and I’ve been wondering what the belt problem could be or if 
> it’s finally fixed.  I’m curious to hear your outcome.
>
>  
>
> *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] 
> *On Behalf Of *George Lendich
> *Sent:* Tuesday, July 14, 2009 8:31 PM
> *To:* Rotary motors in aircraft
> *Subject:* [FlyRotary] Re: Off topic sort of
>
>  
>
> Bob,
>
> Perhaps tracking is out!? Is it wearing on the sides?
>
> George (down under)
>
>     ----- Original Message -----
>
>     *From:* btilley@mchsi.com <mailto:btilley@mchsi.com>
>
>     *To:* Rotary motors in aircraft <mailto:flyrotary@lancaironline.net>
>
>     *Sent:* Tuesday, July 14, 2009 7:09 AM
>
>     *Subject:* [FlyRotary] Off topic sort of
>
>      
>
>      Ok folks,
>
>      
>
>     I've got a problem!  I have a motorhome that keeps burning up
>     altenator belts. They only last about 100 miles. I thought I had
>     found the problem/problems. First someone else had rebuilt the
>     motor when my parent had the motorhome. The fuel line had been run
>     between the alt bracket and the belt, and secured with a hose
>     clamp. I thought the clamp was cutting the belt when it was
>     wobbling. Then when the Secondary batteries were installed it was
>     asking at times for maximum amperage. So I disconnected them. Also
>     the spacing was not correct on the pulley alignment. I got the
>     alignment corrected.  BUT, it is still burning belts, the tension
>     should be right and the alt has been replace with one that rotates
>     freely.  Help!!!!
>
>      
>
>     TIA
>
>     Bob Tilley
>
>     Albany, Ga
>