18 ENGINE
Guideline
Piston/cylinder - mounting clearance
Size I
0.025 ... 0.047 mm (0.00098 ...
0.00185 in)
Size II
0.027 ... 0.049 mm (0.00106 ...
0.00193 in)
Wear limit
0.070 mm (0.00276 in)
18.4.17 Checking the piston ring end gap
302704-10
-
Remove the piston ring from the piston.
-
Place the piston ring in the cylinder and align with the piston.
Guideline
I
Below the upper edge of the cylinder
1
20 mm (0.79 in)
-
Measure the end gap with feeler gauge f).
Guideline
Piston ring - end gap
Compression ring
I
$ 0.40 mm ($ 0.0157 in)
Oil scraper ring
I
$ 0.80 mm ($ 0.0315 in)
If the end gap is greater than the specified measurement:
-
Check/measure the cylinder. (
0
p. 159)
If cylinder wear lies within the specified tolerance:
-
Change the piston ring.
-
Mount the piston ring with the marking facing toward the piston head.
18.4.18 Changing the camshaft bearing
308666-10
302767-10
-
Clamp special tool
O
into a vise.
I
Adjustment bush bridge (77229050044) (
0
p. 295)
-
Mount the camshaft on the special tool.
-
Remove screw
8.
-
Pull camshaft gear (D off of the camshaft.
I
Extractor, camshaft gear (77229001044) (
0
p. 293)
-
Remove bearing
C,.
-
Oil the new bearing
C,
and push it onto the camshaft.
I
Lubricated with engine oil
-
Degrease the cone of the camshaft and camshaft gear.
-
Mount camshaft gear (D.
-
Mount screw
8
but do not tighten yet.
Guideline
Screw, camshaft drive
M12x1
70 Nm
Loe-
161
sprocket
(51.6 lbf ft)
tite
®
243
™
/cone
308666-11
-
Repeat these steps for the second camshaft.
degreased
Summary of Contents for FE 350 2015
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