batman wrote on 05/18/16 at 23:13:17:Dave gave us a picture of a Porsche tensioner,that restricts movement using hydraulic pressure which on first attempt failed,I'm waiting for my tensioner spring to fail ,but I'm a patient man. and thinking about the Porsche boxer engine a 180 degree flat six with duel over head cams their need for heavy duty tensioner on a chain that might be 8 feet long might be over kill for our bikes.
The chains on the Porsche engine (1 left, 1 right) are a similar length to our chain. The chain goes from the intermediate shaft to the overhead cam.....the only big difference is that the chain is driving a longer cam and works 3 cylinders instead of just one. The Porsche cam chain is a double roller chain rather than the silent chain used on the Savage.
I was looking at images of tensioners to see how others are made, and I found a tensioner for Honda cars, and it commented on the tensioner issue they have. Evidently the problem is that when the valve is closing - the spring pressure pushes on the cam lobe and drives the cam forward slightly, and this can allow the valve to close too fast and the valve hits hits the seat too hard. I don't know that this occurs on the Savage, as the Honda car most likely doesn't use rocker arms and it probably has an intake and exhaust cam....so the design is much different.
I hope you do have success, and that it works out fine. I am not yet convinced that the removal of the pawl is a good thing, and that the forum members should follow your method. Only time will tell if you have found something more durable than what the stock tensioner provides.
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