Re: [Chrysler300] The Belt Jumpin' Blues

[Ray Jones <hurst300@xxxxxxxxxxx>]

As I recall, belts are made in tubes then they cut off slices to form 
belts. So a matched pair are two consecutive slices which are then 
attached to each other and sold as a matched set.
As I said earlier, this practice may have been improved on and not 
necessary now.

Did you ask for a belt number or did they look up the actual 
application? if you asked for the belt number, they sold you two of 
what you asked for. By application, it would have said "Matched pair" 
or suchlike and been bundled together, possibly under a different 
number.
Let us know how it works out.
Regards, Ray
On Aug 19, 2006, at 2:07 AM, Rich Barber wrote:

> I believe matched sets involve careful measuring of as-manufactured 
> length
>  and making up matched pairs with closest overall lengths. Due to
>  manufacturing variances of this imprecise item, lengths can and do 
> vary
>  slightly, resulting in different belt tension for the two belts.
>
>  If, when installed, the belt tension is close, there should be no 
> problem.
>  One should be able to tell if one belt is loose enough to pop out.
>
>  You will be able to make this check of relative tension of the two 
> belts
>  before starting up the engine. After you start the engine, have 
> someone
>  observe the air conditioning compressor to see if it engages smoothly 
> when
>  the air conditioning is turned on. If it locks up and does not turn,
>  immediately turn the air conditioner off and get your check book out. 
> It is
>  also possible the compressor will lock up after some operational time 
> with
>  low lube. The easiest check is at the sight glass on the "Freon" 
> drier.
>  You should be able to observe bubbling "Freon" there. If you are 
> getting
>  good cooling, you can't be too low.
>
>  Rich Barber
>  Brentwood, CA
>
>  -----Original Message-----
>  From: Chrysler300@xxxxxxxxxxxxxxx 
> [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
>  Behalf Of Matt Allyn
>  Sent: Friday, August 18, 2006 9:53 PM
>  To: MJRAGUSE@xxxxxxx; Chrysler300
>  Subject: Re: [Chrysler300] The Belt Jumpin' Blues
>
>  Bought two belts with the same part number at Napa. They did not sell 
> them
>  as a matched pair, with say, 1 part number.
>
>  Matt Allyn
>  Exec. in Charge of Prod.
>  Granada America
>  323-785-2129 office
>  323-785-2151 fax
>  562-533-2551 cell
>
>
>  -----Original Message-----
>  From: MJRAGUSE@xxxxxxx
>  Date: Fri, 18 Aug 2006 23:39:38
>  To:mallyn@xxxxxxxxxxxxxxx, Chrysler300@xxxxxxxxxxxxxxx
>  Subject: Re: [Chrysler300] The Belt Jumpin' Blues
>
>  In a message dated 8/18/2006 10:35:47 PM Eastern Daylight Time,
> mallyn@xxxxxxxxxxxxxxx writes: two A/C-Alternator belts has jumped the 
> track
>  and is now hanging out in front of the compressor pulley.
>
>  Thoughts on the cause?
>   
>  I do not claim any expertise on the subject but did you buy a matched 
> set of
>  belts..in other words these belts are usually sold in set not just 
> separate
>  belts of the same number? In this way they are toleranced for the same
>  pulley. 
>
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>   

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