Thanks Phil. Yes. The Minispares one (which has been out of stock for some time) does not come with a timing disc. This one does and as you say, it is riveted on with 3x rivets. I will drill them out as you suggest. Nice idea to tap the holes. I have some UNF or UNC taps but I am not sure what size or TPI I would tap them to for a puller as I do not have a harmonic balancer puller like yours. I do have some 3 legged pullers which would do the job though I think.philthehill wrote: ↑Wed Feb 14, 2024 10:35 pm The first thing you are going to have to do is remove the timing disc from the rear of the pulley. Just drill out the rivets . You can then tap the old rivet holes as they can then be used with a puller (as below) to remove the pulley if required. Using a 2 or 3 leg puller can damage the damped pulley.
Damper puller.JPG
As regards timing marks - I have just timed the engine and painted marks on the timing chain cover and pulley where I can see them. No need for special timing marks etc. You do not have to stick with the original timing marks/positions.
Stephen