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Date:   Thu, 26 Aug 1999 00:22:12 -0400
Reply-To:   David Beierl <dbeierl@IBM.NET>
Sender:   Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:   David Beierl <dbeierl@IBM.NET>
Subject:   Re: Temp vs. Backpressure
Comments:   To: Christopher Arnold <arnolcj@TRAVELLER.COM>
In-Reply-To:   <l03130300b3ea6813d0f7@[206.166.192.77]>
Content-Type:   text/plain; charset="us-ascii"; format=flowed

At 23:04 8/25/99 -0500, Christopher Arnold wrote: >running the A/C. What I have noticed lust recently (about the same at the >higher temps) is a heavy rattle which seems to be originating at the >muffler (which is rusty and sounded semi-perforated before). The rattle >goes away when the engine is a little above idle.

Sounds to me as though the CAT element has disintegrated and is plugging the exhaust. That will give you lots of back-pressure etc. and is a known failure point. Bentley say to take the cat off and look through it from both sides; should be a fine regular grid. If it looks melted and busted it's bad. If it looks good, "while holding converter vertically, firmly tap flange onto solid wood from a distance of 8 inches (both ends). It shouldn't make any noise. I don't think you're going to need the second test...

Bus Depot has replacements for about $100 I believe.

david David Beierl - Providence, RI '84 Westy "Dutiful Passage" '85 GL "Poor Relation"


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