Date: Mon, 30 Apr 2007 23:37:41 +0100 From: "Charles C." <c.k.christacopoulos.removeme.nospamee.ac.uk> Subject: Bosal Exhaust ... rear silencer, intentional pin hole or not?
Hi, Crossposting to alt.autos.saab and uk.rec.cars.maintenance. The car is a SAAB 9000 (year 97, 2.0 LPT). Today I had a mid and rear section exhaust fitted by Kwick-Fit (Partco parts if it matters). The 2nd (last) silencer has a pin hole at its rear plate. By rear plate I mean the end that connects to the mid section. The pin hole appears intentional (I could only feel it not see it) and is low down in the middle of the back plate. http://www.catalogue.bosal.com/pages/exh_system_list.php?query_nr=6&make=saab&model=9000&body=Hatchback&cartype=2.0&fuel=B&year=1997 or http://tinyurl.com/2t4fsu Just imagine a pin hole around 1 mm in size on the left plate (as you see it) of the final silencer. I am told that Vauxhalls (what a coincidence) tend to have such a hole and it is to help the rear silencer stay dry so it does not corrode internally. Does it sound true? I can understand the issue of corrosion, but I don't see how that hole will help in any way but ... it does not feel like a drain hole. Any comments appreciated. Regards Charles PS. For my SAAB friends. When I looked around 2000 for a complete Bosal exhaust, Bosal did not make the last section for post 1996 9000s. I guess by that time GM was sourcing SAAB exhausts elsewhere whereas before Bosal had been the OEM for SAAB exhausts. -- Please remove _removeme_ to reply.
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