5 Series E39 523i (M52TU) TOUR
11 12 527
Remachining a valve seat (M52 / S52 / M52TU
/ M54 / M56)
Special tools required:
•
00 3 520
•
00 3 580
(cylinder head dismantled)
Machine valve seat surface with special tool 00 3 520 or with
special tool 00 3 580 in accordance with manufacturer's
instructions.
Note:
After machining the valve seat surface, remachine the outside
and inside diameters with a correction milling tool to the
prespecified diameter to produce valve seat width (5).
1)
Valve-seat angle
2)
Correction angle, outside
3)
Correction angle, inside
4)
Outside diameter seat face
5)
Valve-seat width
Specified values (1 to 5)
.
RA Remachining a valve seat (M52 / S52 / M52TU / M54 / M56)
BMW AG - TIS
16.02.2013 04:17
Issue status (12/2007) Valid only until next DVD is issued
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