Jaguar XK6 "D" type head 3.0 (1958)

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Specifications

Introduced in 1960
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Dimensions

Cylinders arrangement: inline 6
Strokes: 4
Bore x Stroke: 83.0 mm x 92.0 mm, 3.268" x 3.622"
Capacity: 2986cc, 182.3ci
Compression ratio: 9.0:1 or 9.5:1

Construction materials

aluminium alloy block with cast iron cylinder liners
RR50 aluminium "D" type cylinder-head with hemispherical combustion chambers
EN16 steel crankshaft with 7 main bearings
Steel connecting rod

Cylinder-head

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Dual overhead camshafts (DOHC), chain driven with 2 stage double chains
2 valves / cylinder - 12 valves total
35^o angle between inlet valve and vertical
40^o angle between exhaust valve and vertical
47.6mm inlet valve diameter
41.3mm exhaust valve diameter

Aspiration

Natural with

• 3 x Weber 45 DCOE Carburetors
• Lucas Mk. I Fuel Injection

Ignition

Firing order, 1 - 5 - 3 - 6 - 2 - 4, with number 1 cylinder being at the rear of the engine (flywheel)
Spark plug gap 0.56mm
Contact breaker point gap 0.30mm

Cooling and lubrication

Water cooled with Crosthwaite & Gardiner water pump, cooling fluid capacity 14 lt
Dry sump with a Hobourn-Eaton eccentric-lobe oil pump, oil capacity 13 lt

Torque values

Bolts	Foot Pounds	kg.m
Cam bearing caps	15	2
Connecting rod caps	37	5.1
Main bearing cap	83	11.5
Cylinder head nuts	54	7.5
Flywheel	67	9.3

Models used and Output

Year	Model	Induction	Compression ratio	Power	Torque
1958	Jaguar D Type	3 x Weber 45 DCOE	9.5:1	260 HP / 194 KW
1958	Lister Knobbly	3 x Weber 45 DCOE	9.5:1	260 HP / 194 KW
1959	Lister Costin	3 x Weber 45 DCOE	9.5:1	260 HP / 194 KW
1960	Jaguar E2A	Lucas Mk I injection	9.0:1	293 HP / 219 KW @ 6750 rpm	308 Nm / 227 ft lbs @ 6000 rpm

Drawings

Source

Lucas Mk I injection distributor

Source
1. Depression chamber cover and fixing screws (2 off).
2. Centre (minimum fuel) screw and locking nut.
3. Intermediate calibration screw and locking ring.
4. Outer calibration screw and locking ring.
5. Depression chamber fixing screws and washers (4 off) and unit part number plate.
6. Depression chamber body.
7. Overfuel lever bracket stop.
8. Outer calibration spring.
9. Calibration spring carrier.
10. Inner calibration spring.
11. 1/4 UNF nut.
12. Thrust plate.
13. Diaphragm support.
14. Diaphragm.
15. Diaphragm support plate.
16. Spherical bearing and datum link arms pivot.
17. Datum link arms.
18. Datum rollers - 2 outer I inner.
19. Datum link arm circlips.
20. Roller and link arm circlips.
21. Body assembly.
22. Overfuel lever pivot.
23. Overfuel lever return spring.
24. Washer
25. Overfuel lever.
26. Circlip.
27. Overfuel lever assembly (with adjustment cam follower) screw
28. 1/4 UNF nut.
29. Spring washer.
30. Overfuel lever.
31. Cam follower adjustment screw.
32. Spring washer.
33. No. 6 UNC nut.
34. Spacer.
35. Datum track pivot arm assembly.
36. Datum track.