General Data - Discovery II: Engine
GENERAL DATA - ENGINE
| Application | Description | ||
|---|---|---|---|
| Lubrication | |||
| Type | Wet sump, pressure fed | ||
| Pump Type | Eccentric rotor, crankshaft driven integral with stiffener plate | ||
| Filter Type | |||
| Primary | Centrifuge filter | ||
| Secondary | Disposable canister with full flow by-pass | ||
| Pressure At Idle (Cold) | 3.0 Bar (43.5 psi) | ||
| Pressure At 3500 Rev/Min (Hot) | 1.5-3.0 Bar (21.75-43.5 psi) | ||
| Relief Valve Opening Pressure | 4.0 Bar (58 psi) | ||
| Low Oil Pressure Switch Opening Pressure | 0.2-0.6 Bar (3.0-8.8 psi) | ||
| Crankshaft | |||
| Main Journal Diameter | 61.9875-62.0125 mm (2.4404-2.4414 in) | ||
| Crankpin Journal Diameter | 53.99-54.01 mm (2.125-2.131 in) | ||
| End Float | 0.020 - 0.250 mm (0.0008 - 0.0098 in) | ||
| Main Bearings | |||
| Quantity | 6 (5 Main, 1 Thrust) | ||
| Pistons Type | |||
| Graphite | Compound skirt with combustion chamber in crown | ||
| Clearance In Cylinder Bore. Measured At Bottom Of Skirt, 90° To Gudgeon Pin | 0.172-0.206 mm (0.007-0.008 in) | ||
| Diameter (Measured At Right Angles To Gudgeon Pin And 40.0 Mm (1.5 In) From Bottom Of Skirt) | 84.270-85.254 mm (3.321-3.361 in) | ||
| Gudgeon Pins | Fully floating, offset towards piston thrust side | ||
| Piston Rings | |||
| Type | 2 compression, 1 oil control | ||
| Upper Compression Ring | Barrel edge, chrome plated | ||
| Lower Compression Ring | Taper faced | ||
| Oil Control Ring | Bevelled ring with spring | ||
| New Ring To Groove Clearance | |||
| Upper Compression | Not measured | ||
| Lower Compression | 0.050-0.082 Mm (0.002-0.003 In) | ||
| Oil Control | 0.050-0.082 Mm (0.002-0.003 In) | ||
| Piston Ring Fitted Gap In Cylinder Bore | |||
| Upper Compression | 0.30-0.45 Mm (0.0118-0.0177 In) | ||
| Lower Compression | 0.40-0.60 Mm (0.0157-0.0236 In) | ||
| Oil Control | 0.25-0.40 Mm (0.0098-0.0157 In) | ||
| Camshaft | |||
| Bearings | 6 | ||
| Drive | Duplex chain | ||
| End Float | 0.06-0.16 Mm (0.002-0.006 In) | ||
| Tappets | |||
| Type | Hydraulic lash adjusters With followers | ||