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SN_Typ 451_us.book Seite 34 Freitag, 30. November 2007 1:56 13
Valve timing
General
Engine M132 is equipped with mechanical cup tappets.
The mechanical stress on the cams and cup tappets
makes it necessary to check and adjust the valve clea-
rance.
The cup tappets must be measured using a micro-
meter.
1 Cylinder head
2 Camshaft bearing cap
3 Intake camshaft
4 Exhaust camshaft
5 Cup tappet
6 Intake valve
34
Introduction of the smart fortwo, Model Series 451
Find and insert the appropriate cup tappet by refer-
ence to its markings.
The valve clearance is adjusted by exchanging the cup
tappets. These are available in various thicknesses.
7 Exhaust valve
8 Valve spring retainer
9 Valve locks
10 Valve spring
11 Valve stem seal
12 Valve seat
P05.30-2151-00
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Questions and answers
hello im looking for a wiring diagram for a 451 fortwo 2009
where is the clutch ?
The clutch in a SMART Series 451 is part of the 5-speed automated manual transmission system. It is a single-plate dry clutch, actuated by the clutch motor, replacing the torque converter found in conventional automatic transmissions. The clutch assembly includes components such as the pressure plate, clutch plate, and flywheel with a starter ring gear.
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