@DrMMHMD Thank you for your comments, In my experience new cylinderheds from the factory do not meet our standards for concentricity beetwen guides and valve seats; Typicalywe achieve les than 0.005 mm TIR where as new from factory we have found up to 0.12 TIR 8
Also as we are using coated titanium valves8 So lapping is not possible.
yeah nice work but seams like, time for set up and truing the cylinder head to the machine would take too long for just a little valve seat, its kinda over kill ya think?
@DrMMHMD Please Explain.
cosast54 5 months ago
@cosast54 Just like to add, circularity is less than 2µ !
cosast54 5 months ago
@DrMMHMD Thank you for your comments, In my experience new cylinderheds from the factory do not meet our standards for concentricity beetwen guides and valve seats; Typicalywe achieve les than 0.005 mm TIR where as new from factory we have found up to 0.12 TIR 8
Also as we are using coated titanium valves8 So lapping is not possible.
cosast54 5 months ago
houser Jig grinder.
cosast54 5 months ago
is that a jig grinder on a vertical mill?
scotts439 5 months ago
@scotts439 Houser Jig grinder..
cosast54 5 months ago
yeah nice work but seams like, time for set up and truing the cylinder head to the machine would take too long for just a little valve seat, its kinda over kill ya think?
kevykev38 8 months ago
@kevykev38 Hi
the precision obtained is extraordinary, no lapping required, also it is air tight and concentric with the guides.
to grind 5 seats ,3 angles for each seat total 1.5 hours
cosast54 8 months ago
mastora eisai megalos
peponakos 1 year ago
good job !
cosast54 1 year ago