Lotus Europa A046T0327Z User Manual download pdf (Page 11)

----------------------------------------------------------------------------------------Section Updated: 1/10/2008 6:49 AM at http://www.lotus-europa.com ----------------------------------------------------------------------------------------

Cylinder Head

Material Aluminium

Valve timing - Inlet opens 35° B.T.D.C.

- Inlet closes 65° A.B.D.C.

- Exhaust opens 65° B.B.D.C.

- Exhaust closes 35° A.T.D.C.

Angle of valve seats and faces 45°

Valves - Head diameter - Inlet 1.476 in. (37.5 mm.)

- Exhaust 1.220 in. (31 mm.)

- Stem diameter - Inlet .315 in. (8 mm.)

- Exhaust .315 in. (8 mm.)

- Stem clearance in guide - Inlet .0010/.0018 in. (.025/.045 mm.)

- Exhaust .0016/.0024 in. (.040/.060 mm.)

- Clearance (cold) - Inlet .008 in. (.20 mm.)

- Exhaust .010 in. (.25 mm.)

Valve springs - Type Helical, double

- Free length - Inner 1.492 in. (37.89 mm.)

- Outer 1.929 in. (49 mm.)

Valve guides - Length - Inlet 1.968 in. (50 mm.)

- Exhaust 1.968 in. (50 mm.)

- Fitted height above head .472 in. (12 mm.)

Camshaft

Number and type of bearings 4, white metal

Journal diameter 1.653 in. (42 mm.)

Bearing running clearance .001/.0029 in. (.025/.075 mm.)

End float .002/.0047 in. (.05/. 12 mm.)

Tappets - Standard .473 in. (12 mm.)

- Oversize .480 in. (12.2 mm.)

Drive - Type Chain

- Number of pitches 72

- Length (of pitch) .375 in. (9.525 mm.)

- Width (of pitch) .225 in. (5.72 mm.)

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LOTUS EUROPA 1

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Lotus Europa A046T0327Z User Manual Page 11

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