Page 1 of 1
Valve Clearances for White Cam
Posted: Fri Jul 03, 2020 8:14 pm
by Duccout
Can anyone confirm what the valve clearances should be for a white cam? I have two sources that list it as 2-4 thou, but this seems very small, and in view of the variations in Ducati technical information I'm a little wary.
Re: Valve Clearances for White Cam
Posted: Sat Jul 04, 2020 3:29 am
by Jordan
2 & 4 thou were the normal clearances for INL & EXH of pushrod Triumph 650s.
Re: Valve Clearances for White Cam
Posted: Sat Jul 04, 2020 8:14 am
by ducwiz
Afaik, the white camshaft was used in the 250SCR n/c and w/c models, and apparently in the 450SCR. The 1964 user manual for the 250SCR and Monza quotes:
Snap 2020-07-04 at 10.08.58.jpg
cheers Hans
Re: Valve Clearances for White Cam
Posted: Sat Jul 04, 2020 8:19 am
by Ventodue
Seems spot on for a wide-case white cam, Colin, i.e. as fitted to 250 SCR & 450 Mark III, SCR according to Jim Pianetta. (Haven't checked for n/c).
Spec in owner's h/book is 0.05 - 0.10mm. And 0.05 = 2 thou, and 0.10 = 4 thou ...