It is not just vibration. It's expansion. Your exhaust system is considerably
longer when hot than when cold, so your hangers need to allow for that change.
I remember I had a system put on a (non-TR) car some years ago. System was
perfect when they fired it up at the shop. By the time I got home, it was
knocking on chassis parts. Took it back to the shop so they could see it hot.
They made changes and it was OK thereafter.
Phil Ethier West Side Saint Paul Minnesota USA
1973 Triumph Stag LE22439UBW "uncle jack"
2004 Suburban 8.1
2005 Lotus Elise
2007 Saturn Ion 3 2.4
pethier [at] comcast [dot] net
http://www.flickr.com/photos/pethier
http://www.triumphtransamerica.org.uk
http://www.mnautox.com
----- Original Message -----
> From: "Gary Nafziger" <nafzigerg at yahoo.com>
> To: triumphs at autox.team.net
> Sent: Thursday, April 14, 2011 8:37:51 AM
> Subject: [TR] exhaust
>
> I'm putting together my own exhaust system and have a question about
> hangers.
> Is it essential to have rubber as part of a hanger between the exhaust
> and the
> frame or can the exhaust be connected to the frame with all metal?
> I'm
> wondering about vibration and whether that weakens an all metal
> hanger, leading
> to breakage over time.
>
> just wondering
> thanks
>
> gary n.
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