Oh and vinegar only works on rusty metal not on alloy.

Thanks Guys...................all very helpful..............You should see the Valve Adjustment procedures in my Ford Factory book ! Total brain-melter; half the info was omitted!!!! ..... Little wonder it made no sense. Must have been the "first edition" ? 
dukess600 sent me a PM but try as I may, it refused to work. Here it is for all to see.( Thanks for asking how my
Wild Plum GTV6 is coming along).....................................
Thanks dukess600 for asking !.......................Just this week I have finished Engine and Transmission Overhaul and installed, and back on the road.............purring like a Wild Beast on the "Trade Plate"!.........Body/Paint is still original.
Next plan is to get her RWC so I can Club-Regio her thru my Car Club I'm a member of a club called Mornington Peninsula Historic Vehicle Club,(MPHVC) which meets in South Frankston every month and have outings every 4 to 7 days.
Once the good weather occurs, I must visit your meeting at Tower Hotel in Hawthorn Road, if you welcome visitors.
Kind regards
Bernie

Thanks John as I agree with 0.013 and 0.022 clearances.........always better too loose than too tight
and
Thanks FoxyCapri for the Correct Table that was botched in my Ford GTV6 w/s manual