First time I have seen one Bob.....got to mention this....don't know whether to laugh or cry....last week I went to hell and back trying to get the timing cog off my engine, it must have worked out at around 8-10 hours interspersed with lots of coffee and beer and some serious language
Today I went down my shed to take off the timing belt on my "spare" engine and for a laugh, I took a couple of screw drivers to see if the timing cog would come off....well f@@@@k me after two light taps with one driver it moved a whole millimeter another few taps and it was off ....total time to do about 6 minutes ( Victor Meldrew moment) and several more exlpetives.
I have managed to prime the engine block with Vactan which is basically the same as Kurust ....looks like milk and turns any rust patches into a black oxide
I'm sure we have all used it at some time or another.....sometimes works sometimes does'nt .