My trigger wheel is held onto a standard pulley with six M4 stainless screws passing through the wheel and into tapped holes in the damper weight. The trigger wheel can go on the other side of the pulley, but it turns fan belt replacement from a 5 minute job into an hours fight as there isn't enough room to fit the belt between the trigger wheel and the engine mount. If you mounted the wheel on the outside of the pulley to replace the belt you'd have to split the engine from the mount.
I notice on both yours and Ousters, that the trigger wheel is inboard of the pulley. I had thought of using a stadard ring & machining to fit but guessed it would always be on the outside. Can I ask how you have fitted it. (machined flange, weld bolt etc). Did you start with a standard pulley? (Ousters looks slightly different)
These are exactly the tips that I need, thank you. I was thinking a groove (rebate) machined in the outer edge but bolting to the rear will save me having to blag time on a lathe (my pal lost his when they moved), and potential clearance issue in the future.
Kind regards
Steve