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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
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