That's the pulley that was on my A15, looked just like the picture you posted. The trigger wheel was off a ford in the wrecking yard, I don't know what sort, fwd 4 cylinder of some kind. The front groove came off when the trigger wheel went on.

Yeah lots of EDIS parts on Aussie fords...did you get the 1992 Sierra

Btw, good job on the pulley, looks factory. Got any more pics of your setup?

Sorry, I didn't notice the comment.

I went for a sliding fit with adhesive because the trigger wheel is cast iron. Cast isn't very good in tensile loading so you run the risk of breaking it, particularly with the reduced section I ended up with. I guess that's why the OEM one had such a thick section there.

I didn't know it was cast to start with, a mate I work with (who used to be a fitter and turner, now engineer) did it for me. He started machining it and realised it was cast so stopped my original plan which was an interference fit like you say. That was when I thought it was some kind of steel.

I welded my prototype wheel, but heard it pinging as it cooled and wasn't game to try running it. Probably should've used nickel filler or pre and post heated.

I opted to use neither expoxy nor interference fit. Since the trigger wheel has no load on it, it was simply bolted on. No problems over two years of running. It was bolted in front of the stock pulley using a longer crankshaft bolt.

Also a good option, I'm a little light on for space in front of the pulley.

Looks awesome!