Fiat TC big valve seat prep
Posted: July 19th, 2006, 12:28 pm
Final grind before build on a 45/40 big valve rally TC head for an 1800 124 Abarth Spider for client Achy Leousis in Greece. Seats are heat-treated copper beryllium inlet and KS sintered nickel-chrome-steel ex.
I use 'Neway' cutters on the soft CuBe seats, work beautifully in that soft, sticky material, like 'a hot knife thru butter' as the saying goes, gorgeous golden swarf just 'peels' off, and the marvellous & hyper-accurate Peg orbital grinder on the harder ex seats.
For full photo sequence of cam timing see:
http://guy-croft.com/viewtopic.php?p=912#912
GC
I use 'Neway' cutters on the soft CuBe seats, work beautifully in that soft, sticky material, like 'a hot knife thru butter' as the saying goes, gorgeous golden swarf just 'peels' off, and the marvellous & hyper-accurate Peg orbital grinder on the harder ex seats.
For full photo sequence of cam timing see:
http://guy-croft.com/viewtopic.php?p=912#912
GC