So this is a job we did recently - original part on the left.
An eccentric bush goes in the 5/8" hole which allows for valve clearance adjustment. the material is gauge plate, which is miserable stuff to machine, i wore out several carbide cutters.
the one below is machined from a solid block, for a prototype so see if the guy liked it, but when we did a little production run, we got our local watercutter to cut out the shape +0.25mm all round. We made a series of jigs and finished them off on the interact. must remember to allow for more carbide next time!
An eccentric bush goes in the 5/8" hole which allows for valve clearance adjustment. the material is gauge plate, which is miserable stuff to machine, i wore out several carbide cutters.
the one below is machined from a solid block, for a prototype so see if the guy liked it, but when we did a little production run, we got our local watercutter to cut out the shape +0.25mm all round. We made a series of jigs and finished them off on the interact. must remember to allow for more carbide next time!