ENGINE
RSV mille
3
- 69
3.6.25 CAMSHAFT AND CAMSHAFT BUSHES
Carefully read 0.2.1 (PRECAUTIONS AND GENERAL
INFORMATIONS).
◆
Check the cams (1) for broken material, signs of distor-
tion or wear and, where necessary, replace the cam-
shaft.
Measure the play of the camshafts:
◆
Place the camshafts in the head.
◆
Apply a plastic gauge (2) on the bearing housings of the
camshafts.
◆
Apply the U bolts according to which shaft they are as-
signed to and fasten them with the M6 T.C.E.I. screws.
Driving torque: 10 Nm (1.0 kgm).
◆
Remove the T.C.E.I. screws and the U bolts.
◆
Measure the maximum width of the pressed plastic
gauge with the corresponding graduated scale (3).
Wear limit: max. 0.060 mm.
◆
If the wear limit is exceeded, the bush housings on the
camshafts and on the head must be measured, and the
worn part replaced.
– Camshaft bush housings:
wear limit (4): min. Ø 23.950 mm;
– Head bush housings:
wear limit: max. Ø 24.040 mm;
◆
Insert the intake and exhaust camshafts in the respec-
tive housings in the head and measure the end play
with a comparator.
– End play of the camshafts:
wear limit: max. 0.40 mm.
◆
If the wear limit is exceeded, the axial contact surfaces,
both of the camshafts and in the head, must be meas-
ured and the worn part replaced.
– Axial contact surfaces, (6) camshafts:
wear limit: max. 27.77 mm;
– Axial contact surfaces, (7) head:
wear limit: min. 27.10 mm.
NOTE
If the camshaft is replaced, the buckets must
also be changed.
Summary of Contents for 8140172
Page 1: ...RSV mille MIN 956X Service and repair manual aprilia part 8140172 ...
Page 5: ...0 4 RSV mille NOTE ...
Page 6: ...1 1 RSV mille GENERAL INFORMATION 1 ...
Page 28: ...2 1 RSV mille 1 SERVICE AND SETTING UP 2 ...
Page 84: ...3 1 RSV mille 1 3 ENGINE 3 ...
Page 200: ...4 1 RSV mille 1 2 3 FUEL SUPPLY SYSTEM 4 ...
Page 226: ...5 1 RSV mille 1 2 3 4 COOLING SYSTEM 5 ...
Page 236: ...6 1 RSV mille 6 6 6 6 6 ELECTRICAL SYSTEM 6 ...
Page 239: ...6 4 ELECTRICAL SYSTEM RSV mille 42 0 43 9 54 ...