Bob, you say the belt tension “…should be
right…”. Have you verified that it is. A sort of rule of thumb (but no substitute
for using a belt tension measurer) is the belt should not be able to be
depressed more than ½” at the mid point between the pulleys.
I presume it is driven by a “V” belt? A
quality belt is being used such as a “Gates” – I have had some imported (and
cheap) belts last less that two flights in my aircraft, so I now use only Gates
belts.
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
On Behalf Of btilley@mchsi.com
Sent: Monday, July 13, 2009 5:10
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Off topic
sort of
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!!!!
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