Great suggestions
If budget is an issue. These types of tensioners are used on many cars on the timing chain.
For Rebound Rumble we got one off a junk Toyota (free
) and used it on our chain driven ball delivery system.
Works great.
Even new they are not a deal breaker.
Such as the OSK listed here.
http://www.autopartswarehouse.com/sh...er/toyota.html
Nice thing about the car ones, besides being durable, they are wider and you can offset your chain groove.
Good time to create a connection with an auto parts store in the area.
Aloha!