Ok i found the paper trail copied it to my desk top but it won't attach so here is the discription.
Hydraulic Chain Tensioner
sohotbikes.com
1-800-893-6916
Part # HB125
Took me about 3 hours to do it properly, with a die grinder and some paitence, which i do not have a lot of.
Less noise and i have changed my oil twice since, no metal at all and the tension of the chain has remained at the correct tension.
Good luck.