16
ENGINE
114
308089-01
–
Position camshaft bearing bridge
1
.
–
Mount the screws and tighten in a crisscross pattern from the inside to the outside.
Guideline
Screw, camshaft bearing bridge
M6
11 Nm (8.1 lbf ft)
Info
Make sure the dowel pins are seated correctly.
Do not twist the camshaft.
308090-01
–
Remove the camshaft bearing bridge
1
again. Compare the
Plastigauge
clearance
gauge with the data on the packaging.
Guideline
Camshaft bearing - slide bearing
Radial clearance
0.025… 0.053 mm (0.00098…
0.00209 in)
Wear limit
0.065 mm (0.00256 in)
Info
The width of the
Plastigauge
clearance gauge is equal to the bearing play.
–
Take off the camshafts and clean the parts.
16.4.10 Checking/measuring the cylinder
308078-10
–
Check the cylinder bearing surface for damage.
» If the cylinder bearing surface is damaged:
–
Change the cylinder and piston.
–
Measure the cylinder diameter at several places in the
X
and
Y
axes using a
micrometer to check for oval wear.
Guideline
Cylinder - bore diameter
88.982… 88.998 mm (3.50322…
3.50385 in)
308079-10
–
Check the sealing area of the cylinder head for distortion using a straight edge and
the special tool.
Feeler gauge (59029041100) (
p. 190)
Cylinder/cylinder head - distortion of
sealing area
≤
0.10 mm (
≤
0.0039 in)
» If the measured value does not equal the specified value:
–
Change the cylinder and piston.
16.4.11 Checking the piston ring end gap
308080-10
–
Remove the piston ring from the piston.
–
Place the piston ring in the cylinder and align it with the piston.
Guideline
Under the upper edge of the cylinder
20 mm (0.79 in)
–
Using special tool
1
, measure the end gap.
Guideline
Piston ring end gap
Compression ring
≤
0.40 mm (
≤
0.0157 in)
Oil scraper ring
≤
0.80 mm (
≤
0.0315 in)
Feeler gauge (59029041100) (
p. 190)
» If the end gap is more than the specified value:
–
Check/measure the cylinder. (
p. 114)