3 Series E30 318i (M42) SAL
11 00 ...
General information on valve timing work: (M42)
Attention must be paid to the following if work had been carried out on the cylinder head, for which the camshaft was
removed:
The bucket tappets expand without loading from the camshaft and require some time following installation to compress
again. For this reason, fast assembly could cause "closed" valves to still be open and have contact with the pistons.
The following waiting times are necessary between installing of the camshaft and mounting the cylinder head.
Room temperature (20
°
C)
4 min.
10
°
C ... 20
°
C
11 min.
0
°
C ... 10
°
C
30 min.
Working on valve train with mounted cylinder head:
Turn engine approx. 45
°
opposite the engine direction of rotation on the central bolt.
In this way none of the pistons will be in TDC.
Install camshaft in such a way that peaks of cams for cylinder No. 1 point to each other. Keep to the above mentioned
waiting times. Turn engine from the 45
°
before the TDC setting in the direction of rotation to the TDC setting and mount
the timing chain.
A description of disassembling and repairing engine are provided in chronological sequence on the following pages.
The list of contents is provided to help take up work again after an interruption or to more easily find a certain point.
They only describe direct removal and installation, and do not contain full details of procedures.
RA General information on valve timing work: (M42)
BMW AG - TIS
21.01.2013 15:41
Issue status (12/2007) Valid only until next DVD is issued
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