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| 8 & 10 cyl Bristol cars Type 407 onwards - restoration, repair, maintenance etc |
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10-02-21, 01:25 PM
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Nice looking headers there, Roger. Maybe one day on mine.
I am interested in the addition of a 3rd mount at the front on cars later than mine. My two exhaust hangers are rigid and I thought that odd. I'd expect rubber in there somewhere. So I am intrigued by the mount you picture because it looks as though it holds the exhaust pipe rigidly in relation to the chassis. Am I seeing that correctly? or is the upper end of the frame on the transmission? Where is there any flex in your setup? David 
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10-02-21, 02:58 PM
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David
No, you’re not seeing that correctly, the “A” frame, not that the A is closed at the top, is mounted on the rear of the gearbox, not the chassis, so the exhaust system up to that point is still insulated from the chassis by the engine and gearbox mounts The two rearmost mountings each side should certainly be mounted on rubber. Tony Crook claimed that the use of mild steel exhaust pipes alongside stainless silencers made for a quieter exhaust system, but it perhaps as well to remember that he was extremely good at writing up his product Good luck Roger
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