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CAMSHAFT
Check that cam surfaces are scored, stepped, grooved etc.
Insert the camshaft between two references and then check de-
viation using two comparators.
Wear limit: 0.0039 in.
Check that the cams are in good conditions, without wear or
deformation.
Cam height “H”
INTAKE (new) = 36,57 mm/ 1.44 in.
EXHAUST (new) = 35,94 mm/ 1.41 in.
VALVE SPRING
The weakening of the springs causes a decrease of the engine
power and it aften is responsible of the noise and the vibra-
tions coming from the valves.
In this case, check the free length “L”. When the working lim-
it indicated has been overcomed, replace the springs.
“L” new spring = 35 mm/ 1.38 in. (250); 43,4 mm/ 1.71 in.
(450-510)
Service limit: 33 mm/ 1.3 in. (250); 41 mm/ 1.6 in. (450-
510)
NOTE:
Replace all the spring valves when even one of these has over-
comed the the working limit.
Check the spring valve squareness. Error limit not above 1.5
mm (0.059 in.) on each side.
77
EN
Cap10_GB 9-07-2007 16:35 Pagina 77
Содержание SMR 450-510/2008-I.E.
Страница 102: ...100 13 indice OK 2008 12 07 2007 15 05 Pagina 100 ...
Страница 103: ...ENGLISH 1 Cap1_GB 11 07 2007 16 43 Pagina 1 ...
Страница 208: ...106 Cap12_GB 12 07 2007 9 42 Pagina 106 ...
Страница 210: ...108 Cap13_GB 12 07 2007 10 14 Pagina 108 ...
Страница 211: ...FRANÇAIS 1 Cap1_FR 12 07 2007 15 14 Pagina 1 ...
Страница 310: ...100 Cap13_FR 9 07 2007 15 15 Pagina 100 ...
Страница 311: ...1 DEUTSCH Cap1_DE 12 07 2007 15 29 Pagina 1 ...
Страница 410: ...100 Cap13_DE 9 07 2007 11 10 Pagina 100 ...
Страница 411: ...1 ESPAÑOL Cap1_ES 12 07 2007 15 49 Pagina 1 ...
Страница 510: ...100 Cap13_ES 11 07 2007 10 04 Pagina 100 ...
Страница 511: ...A1 APPENDICE A APPENDIX A APPENDICE A ANHANG A APÉNDICE A AppendiceA 12 07 2007 16 07 Pagina 1 ...
Страница 524: ...A14 MEMORANDUM AppendiceA 9 07 2007 10 07 Pagina A14 ...
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