Ok, what is so special with the original nut on the tensioner on the cossies? Have been using regular nut and washer for years never been an issue....is it a locknut? Is it supposed to be used without a washer?

What do people normally use? Locknut with or without washer? Regular nut w washer? Std ford nut without washer

 

I had a lock nut with a washer on mine and a few mins running it loosend its self and bent 16 valves so now I use the proper ford one without a washer its only Ł8 something like that

 

They no longer available burton power told me but I haven't tryed ford yet!

 

i use nylock nut and washer

 

So did I, much less chance of over tightening that way as well...