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Re: [TR] Fan belt tension - Have reviewed previous postings

To: <triumphs@autox.team.net>
Subject: Re: [TR] Fan belt tension - Have reviewed previous postings
From: "Randall" <tr3driver@ca.rr.com>
Date: Wed, 29 Oct 2008 07:23:16 -0800
> I do notice 
> that the pulleys do not seem to line up as well as they did 
> before, and I see that this has been discussed on the list.  

Guess I missed that one.  The pulleys need to line up, or you will have
problems with rapid belt wear.

> The book states 3/4-1", which is where I am now.

But what the book leaves out is how much force you apply when checking the
tension.  What I use is more like 1/2" - 3/4" deflection, when applying as
much force as I reasonably can with a single thumb.

> had it tested and it is putting out 14 volts and 30 
> amps.

So in other words, it was working fine ?

> Currently with 3/4-1" play, I can indeed move the fan with 
> one finger. 

While 1" of play (with moderate finger pressure) does seem awfully loose, I
don't believe you should be able to turn the alternator fan that easily.  I
would get a new belt (the old one may be glazed or hard), and carefully
clean the pulley to ensure it has not had a lubricant spilled on it.  If the
surfaces where the belt rides look shiny (like a mirror), they could even be
roughened up a bit with fine emery cloth.

Also inspect carefully to ensure that the belt is not touching the bottom of
any of the pulley grooves.  There were two different widths of belt used on
various years of the TR6, and it's easy to get components mixed up.

Randall
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