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If your timing side cam bushing has "NO" flange then you will have 2 washers in there. The beveled one with the beveled end against the cam shoulder and the tabbed one that you speak of. It is also advisable to break the tab off cause they can break themselves off and go where they shouldn't.Again, no flange bushing = 2 washers.Also, the tach drive will keep the cam pulled over to the timing side against these thrust washers. I am not sure what happens when go with an electronic tach and pull the worm out.Edit. If your bushing has a flange (later type) the tab washer is eliminated.
If your timing side cam bushing has "NO" flange then you will have 2 washers in there. The beveled one with the beveled end against the cam shoulder and the tabbed one that you speak of. It is also advisable to break the tab off cause they can break themselves off and go where they shouldn't.
Again, no flange bushing = 2 washers.
Also, the tach drive will keep the cam pulled over to the timing side against these thrust washers. I am not sure what happens when go with an electronic tach and pull the worm out.
Edit. If your bushing has a flange (later type) the tab washer is eliminated.