Exhaust bobbins
Discussion
The problem with the 'bobbins' with the threads at either end is that the standard ones are designed for a much lighter exhaust which doesnt take the kind of stress ours does. The 'bobbins' of the type used in minis etc are relatively light duty, and one of the first things you change if you want to use the car competitively.
The pairs of rubber cushions as sold by TVR Parts are as original fitment and have a large bolt through the centre and it is this bolt which takes the load, the rubbers are there as vibration cushions.
That having been said the TVR solution is not ideal as it does allow quite a lot of vibration to transmit through. If you do not believe me try temporarily wiring the exhaust on fairly loosely, there was a marked reduction in transmission of noise to the car. But is there a 'bobbin' type fitting out there which is man enough to do the job and small enough to fit?
The pairs of rubber cushions as sold by TVR Parts are as original fitment and have a large bolt through the centre and it is this bolt which takes the load, the rubbers are there as vibration cushions.
That having been said the TVR solution is not ideal as it does allow quite a lot of vibration to transmit through. If you do not believe me try temporarily wiring the exhaust on fairly loosely, there was a marked reduction in transmission of noise to the car. But is there a 'bobbin' type fitting out there which is man enough to do the job and small enough to fit?
As originally fitted to my car, the 'pairs' of rubbers were fitted on either side where the rear box starts, but the rear end where the pipes bend upwards was a double ended bobbin with threads at both ends. As this was perished and stretching I searched high and low for a matching one but couldn't find one anywhere that was the right dimensions. Ended up using one half of a rubber 'pair' and an appropriate bolt. Could do photos at the weekend if it helps.
Edited by RayTVR on Saturday 28th March 19:43
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