Operation CHARM: Car repair manuals for everyone.

Timing Degrees

Valve timing
with 1 mm valve travel and zero clearance
Inlet opens 15 Degrees After Top Dead Center (deg ATDC)
Inlet closes 59 Degrees After Bottom Dead Center (deg ABDC)
Outlet opens 39 Degrees Before Bottom Dead Center (deg BBDC)
Outlet closes 7 Degrees Before Top Dead Center (deg BTDC)