3 Series E46 316i (M43TU) SAL
11 12 527
Remachining a valve seat (M43 / M43TU)
(cylinder head dismantled)
Machine valve seat face with special tool 00 3 520 or 00 3 580
with specifications of tool manufacturer.
After machining the valve-seat face on OD and bore diameter,
rework to specified diameter with correction milling tool until valve
seat width (5) is obtained.
(1) Valve-seat angle
(2) Correction angle, outer
(3) Correction angle, inner
(4) Outside diameter, valve seat surface
(5) Valve seat width
Items (1) to (5), refer to Technical Data.
RA Remachining a valve seat (M43 / M43TU)
BMW AG - TIS
19.01.2013 10:32
Issue status (12/2007) Valid only until next DVD is issued
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