I swapped timing chain tensioner and some chain guides on an M42, which involved getting the two cam gears and flywheel to stay put in set locations. Special tools that locked into the grooves in the back of the cams. I also bent every flipping intake valve on startup, as I was making do with my own homebuilt cam and flywheel locks and probably had chain slack on the wrong side. Have a care oh Alpenweiss BMW... |