That is a good idea. I do have plastic and aluminum hammers of various sizes, but not that small. So covering/plating with some plastic material will definitely improve the surface of the small hammers.Hubert, per quanto riguarda la testa dei martelli, per non graffiare e lasciare segni di colpi nella finitura, dovresti provare a usare martelli di gomma o nel caso in cui colla un tassello di gomma sulla testa. L'avevo trovato molto utile.
I am aware that it is an unconventional method and I will report whatever happens, success or failure. Yet I have spent quite some time thinking back and forth.Your method of raising the liner sounds interesting and if you have successfully used it in the past, good. However, I would make sure that the sealant can stand the compressive stress when the liner is installed and the head bolts torqued. If it's ductility and compressive yield are greater than aluminum it should work reliably. Otherwise the low surface area of the center punch dimples will allow yielding and you won't achieve the clamp load intended.
How does this affect future removal?
I have heard of the shimming method used to balance the deck height of Porsche air cooled engines - same idea. Not sure what the ID /OD of those would be, but sourcing the shims is probably not an issue regardless. Except for axial runout, the lathe cut does not need to be very precise.
To each their own, which makes this hobby interresting. I wish success to you.