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Triumph TR6 Engine & Cylinder Head
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Page Contents
Pi Engines
External Engine
Consumables
Internal Engine
Cylinder Heads
Valves, Guides & Springs
Rocker Gear
Rocker Cover
Heater Fittings
Cylinder Head Gaskets
Rocker Feed Kit
Misc Consumables
Reconditioned Exchange Engines
If you opt for an exchange engine in preference to a home rebuild, you must establish which exact type of TR6 engine (and at what state of assembly) you will have to order from us. Alternatively we can of course recondition your existing engine if required.
A reconditioned exchange TR6 engine is supplied 'off the shelf' as either a 'full engine' or 'short engine' (i.e. minus cylinder head), to one of five specifications (for Pi cars), depending on the crankshaft, cylinder block and camshaft combination in your old unit. Genuine TR6 PI engines were numbered with CP or CR prefixes and a suffix of HE. The prefix is the same as the chassis (commission) number, whereas the suffix 'H' is for high compression and 'E' is for engine number (as opposed to a chassis number). For North American spec/Carburettor Engines, please refer to the NAS section.
Please see Engine - Internal for the explanations about crankshaft and camshaft terminology. An explanation of the cylinder block descriptions follows item 7 below.
Old units returned to us under the exchange scheme should be drained of oil and externally clean with no irreparable damage (like a hole in the block). Talk to us to determine exactly what should be returned as an old unit. For example, you will have to remove the water pump, inlet and exhaust manifolds, distributor, starter motor, sparking plugs, oil filter, rocker cover, flywheel, rear engine mounting plate, sump, front crankshaft pulley, vibration damper, thermostat and housing from your old engine.
FULL ENGINE SPECIFICATION
• Crankshaft Re-ground • New Cam Chain Tensioner
• New Main Bearings • New Oil Pump supplied
• New Thrust Washers • New Oil Pressure Switch
• Cylinder Block Re-bored • New Oil Pressure Relief Valve and Spring
• New Pistons & Rings • New Big end Bearings
• New Inlet Valves • Camshaft Re-profiled
• New Exhaust Valves • New Cam Followers
• New Valve Springs • New Crankshaft Sprocket
• New Valve Guides • New Camshaft Sprocket
• New Rocker Shaft • New Camshaft Chain
• New Rocker Arms
All engines are bench tested and are suitable for both unleaded and leaded fuels. Fuel injection cars also require Bosch fuel pump and modified metering unit for unleaded application.
Our reconditioned Full Engines for the TR6 have one of the highest rebuild specifications available. Apart from having a multiple of new parts and components fitted - and with a 12 Month / 12,000 Mile Warranty - they are run on a test bed after assembly.
During the test-run period (at varying engine speeds), all external joints and seals are checked, and the water temperature and oil pressure monitored to verify correct operation. After the bench test, the engines undergo a final inspection and are prepared for sale.
NOTE: All units are drained of oil/water before despatch.
Installation information and running-in details are supplied with every unit. We can also supply a 'Full Engine Build-Up Kit' that includes all necessary gaskets, oil, filter etc, enabling you to install the full engine in your vehicle. Alternatively, fitting can be arranged locally in Lincoln if required, at modest cost.
SHORT ENGINE SPECIFICATION
• Crankshaft Re-ground • New Main Bearings
• New Thrust Washers • Cylinder Block Re-bored
• New Pistons & Rings • New Big End Bearings
NB. A new oil pump must be fitted (purchased separately) to validate warranty.
Camshaft, followers & timing gear not included.
Pi Engines
Engines with 'long backed' crankshaft, 'flat topped' cylinder block (150 bhp)
Up to CP50000.
1. 
Full Engine (P.i), reconditioned exchange - (1) - RR2000R
2. Full Engine Build-Up Kit - (1) - RR1156
3. Short Engine, reconditioned exchange - (1) - RR2001R
Engines with 'short backed' crankshaft, 'flat topped' cylinder block (150 bhp)
CP50001 to CP75000.
1. Full Engine (P.i), reconditioned exchange - (1) - RR2002R
2. Full Engine Build-Up Kit - (1) - RR1156
3. Short Engine, reconditioned exchange - (1) - RR2003R
Engines with 'short backed' crankshaft, 'recessed top' cylinder block (150 bhp)
CP75001 to CR1.
1. Full Engine (P.i), reconditioned exchange - (1) - RR2004R
2. Full Engine Build-Up Kit - (1) - RR1156
3. Short Engine, reconditioned exchange - (1) - RR2005R
Engines with 'short backed' crankshaft, 'recessed top' cylinder block (125 bhp)
All CR.
1. Full Engine (P.i), reconditioned exchange - (1) - RR2006R
2. Full Engine Build-Up Kit - (1) - RR1156
3. Short Engine, reconditioned exchange - (1) - RR2007R
External Engine
4. Conversion Gasket Set - (1) - GEG214K
With oil seals.
Conversion Gasket Set - (1) - GEG214
Without oil seals.
5. Head Gasket Set - (1) - GEG179
TR6 to CP75000. (Non recessed bore)
Head Gasket Set - (1) - AJM1193
TR6 from CP75001 & CR. (Recessed bore)
6. Core Plug Set - (1) - RG1034
For block and head.
7. Cylinder Block (flat top) - (1) - 517611R
TR6 to CP50000.
Cylinder Block (flat top) - (1) - 520880R
TR6 from CP50001 to CP75000.
Cylinder Block (recessed top) - (1) - UKC902R
TR6 from CP75001 & CR.
NOTE: A cylinder block is supplied complete with fitted main bearing caps, as they are individually matched during production machining. The two types of cylinder block on TR6 PI models are identified by the lack of, or presence of, a recess machined into the top of each cylinder bore (hence 'flat top' or 'recessed top' blocks). The extra machining, on later cylinder blocks, was to improve head gasket sealing. A change of cylinder head gasket design coincided with this modification. The correct head gasket to match the cylinder block must be used, or premature gasket failure may be encountered. The later head gasket has raised metal circular rings around each cylinder bore, designed to locate in the recesses cut into the top surface of the cylinder block. This gasket can also be identified by a tag that protrudes beyond the back of the block and has the word 'TOP' printed into it.
8. Cylinder Liner - (6) - 145021
TR6 to CR5000.
Cylinder Liner - (6) - 158942
TR6 from CR5001.
9. Bolt (main bearing cap, 3" long)* - (8) - BH607241
Bolt (main bearing cap, 3" long)* - (8) - BH607241X
Uprated.
10. Washer (locking)* - (8) - WL600071
Use with BH607241.
Bolt (main bearing cap, 2 3/4" long) - (8) - BH607221
Alternative to 9.
NOTE: * A factory modification in 1971 deleted the use of locking washers on main bearing caps, shorter bolts being introduced at this time. Bolts measuring 3" from under the head to the end should be used with locking washers, whereas the less desirable shorter bolts should not.
11. Plug (core, rear of camshaft) - (1) - 148353
2"
12. Plug (core, rear and LH side of block) - (3) - 144686
1 1/4"
13. Plug (core, front of block) - (1) - 144687
1"
14. Plug (core,front and RH side) - (5) - 144688
1 1/2"
15. Plug (oil gallery, front) - (1) - PS1103
Sold as a stick of 9.
16. Plug (oil gallery, rear) - (1) - 118632
17. Plug (oil gallery, LH side) - (5) - 118686
18. Plug (oil gallery) - (1) - PU1404
Sold as a stick of 9.
19. Plug (oil gallery, above relief valve) - (1) - 116511
20. Dowel Pin (timing cover locating) - (2) - DP514
21. Dowel Pin (rear plate locating) - (2) - DP612
22. Bush (oil pump drive) - (1) - 149776
23. Adaptor (oil pressure gauge pipe) - (1) - 143943
24. Stud (distributor pedestal, short) - (1) - 101962
1 1/7"
25. Stud (distributor pedestal, long) - (1) - FHS2520
2 1/2"
26. Washer (locking) - (2) - GHF332
27. Nut - (2) - GHF201
28. Stud (RH engine mounting bracket and air manifold to block) - (2) - 128773
29. Washer (locking) - (2) - GHF333
30. Nut (bracket and stay attaching) - (2) - GHF202
31. Screw (engine mounting bracket to block) - (6) - SH606061
32. Washer (locking) - (6) - GHF333
33. Stud (cylinder head)* - (14) - 146200
TR6 to CP75000.
Stud (cylinder head)* - (14) - 157231
TR6 from CP75001.
NOTE: * 157231 is marginally longer than 146200, so it could be utilised for both applications.
34. Washer (under cylinder head nut) - (14) - WB600070
35. Nut (special, cylinder head attachment) - (14) - 103810
Nut (special, cylinder head attachment) - (14) - 103810X
Uprated.
36. Competition Head Stud Kit - (1) - RR1510
Includes 14 studs & nuts. Manufactured with high grade materials for greater control of clamping pressure.
37. Tap (water drain) - (1) - 61478
TR6 to CP75000.
38. Tap (water drain) - (1) - 129077
TR6 from CP75001.
39. Washer (fibre, drain tap) - (1) - WF525
40. Plug (water drain) - (1) - 129077
Alternative to tap.
41. Washer (fibre, drain plug) - (1) - WF511A
42. Blanking Plate (fuel pump aperture) - (1) - 147876
43. Gasket (blanking plate) - (1) - 138791
44. Stud (blanking plate to block) - (2) - 100433
45. Washer (locking) - (2) - GHF332
46. Nut - (2) - GHF201
47. Timing Cover (original) - (1) - 214678
Timing Cover (alternative) - (1) - 217790
48. Gasket (timing cover) - (1) - 211126
49. Oil Seal (timing cover) - (1) - 125631
TR6 to CR2665.
Oil Seal (timing cover) - (1) - UKC1110
TR6 from CR2666.
50. Sealing Block (front) - (1) - 151134
51. Gasket (sealing block to cylinder block) - (2) - UKC8321
52. Screw (sealing block to cylinder block) - (2) - SW605081
53. Screw (engine plate to sealing block) - (2) - SE605061
54. Washer (locking) - (2) - GHF332
55. Filling Piece - (2) - 36234
56. Housing and Seal Assembly (rear) - (1) - 212622
Early TR6.
Housing and Seal Assembly (rear) - (1) - 156530
Late TR6.
57. Oil Seal (crankshaft rear) - (1) - 143456
58. Gasket (housing to cylinder block) - (1) - 105321
59. Screw (housing to cylinder block) - (7) - SH605091
60. Washer (locking) - (6) - GHF332
61. Washer (copper, top centre bolt only) - (1) - 500469
To avoid oil leaks.
62. Back Plate (engine) - (1) - 211505
63. Screw (back plate to cylinder block) - (7) - SH605071
64. Washer (locking) - (7) - GHF332
65. Stud (gearbox and back plate to block) - (3) - 139836
66. Washer (locking) - (3) - GHF332
67. Nut - (3) - GHF201
68. Front Plate (engine) - (1) - 215349
69. Gasket (front plate to cylinder block) - (1) - 215350
70. Screw (front plate to cylinder block) - (3) - SH605061
71. Washer (locking) - (3) - GHF332
72. Stud (timing cover and front plate to cylinder block) - (2) - 100433
73. Washer (locking) - (2) - GHF332
74. Nut - (2) - GHF201
75. Plate (camshaft locating) - (1) - 105114
76. Screw (locating plate to cylinder block) - (2) - SH605071
77. Washer (locking) - (2) - GHF332
78. Screw (engine plate and timing cover to cylinder block) - (5) - SH605071
79. Washer (locking) - (5) - GHF332
80. Lifting Eye (front) - (1) - 123716
Early TR6.
Lifting Eye (front) - (1) - UKC1190
Late TR6.
81. Screw (lifting eye to cylinder block) - (2) - SH605051
82. Washer (locking) - (2) - GHF332
83. Lifting Eye (rear) - (1) - 145987
84. Screw (lifting eye to cylinder block) - (2) - SH605051
85. Washer (locking) - (2) - GHF332
86. Oil Pressure Switch - (1) - GPS117
TR6 all CP, CR & CC models.
87. Oil Pressure Switch - (1) - GPS113
TR6 from CF1.
88. Plug (oil pressure relief valve) - (1) - 107246
89. Washer (copper, sealing plug) - (1) - 6K433
90. Spring - (1) - 131535
Spring - (1) - 131535UR
Uprated.
91. Piston (oil pressure relief valve) - (1) - 132107
92. Dipstick Tube - (1) - 127652
93. Dipstick - (1) - 147712
94. Washer (felt, sealing dipstick in tube) - (1) - 32307
95. Oil sump * - (1) - 307836
Oil Sump * - (1) - 307834
* Alternatives.
Both oil sumps are interchangeable the difference being the location of the drain plug.
96. Oil Sump (aluminium) - (1) - 307834ALUM
97. Gasket (oil sump to block) - (1) - GEG515
98. Screw (oil sump to block) - (23) - GHF120
99. Washer (locking) - (23) - GHF332
100. Plug (tapered, oil drain) - (1) - 114774
Square headed.
101. Plug (tapered, magnetic, oil drain) - (1) - 155660
Magnetic alternative.
102. Oil Filter Canister Assembly - (1) - 129917
103. Canister - (1) - 510107
104. Bolt (canister to cylinder block) - (1) - 510108
105. Seal (rubber, under head of bolt) - (1) - 510109
106. Spring (retaining element) - (1) - 510110
107. Valve Assembly - (1) - 510111
108. Centraliser (element) - (1) - 509883
109. Oil Filter Element (with sealing ring) - (1) - GFE131
110. Sealing Ring - (1) - 272539
111. Spin-On Filter Adaptor (without oil cooler hose tappings) - (1) - RR1238
Spin-On Filter Adaptor (with oil cooler hose tappings) - (1) - RR1275
112. Oil Filter (spin-on type) - (1) - RR1243
Spin-On Oil Filter Conversion
This adaptor converts the standard 'bowl' type filter to the more efficient 'spin-on' cartridge type. It makes filter changing easier (and cleaner) and prevents oil draining back into the sump thus avoiding the 'start-up rattle'.
 Oil Filter Only - RR1243
'O' Ring Service Kit - RR1238S-KIT
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Consumables
113. Engine Cleaner (Autoglym) - (ar) - RX1325
1 litre spray bottle.
Autoglym Engine Cleaner is a powerful, non-corrosive cleaner for engines, components, wheels and machinery. Simply spray on, brush and hose off to rapidly dissolve oil, grease, grime and traffic film from all surfaces.
It works as a combined detergent and degreaser. Harmless in contact with plastics, rubber, paintwork and metal, it cleans the complete engine bay quickly and safely.
Autoglym Engine Cleaner is solvent free, water based and bio-degradable.
114. WD40 (400ml can) - (ar) - GAC111
With literally thousands of uses, WD40 is the number 1 multi-purpose problem solver. It cleans, protects, penetrates, lubricates and displaces moisture like no other product on earth. Oils and protects, frees rusted components, displaces water and stops squeaks.
115. Jointing Compound (80ml) - (ar) - GHF6093
Our recommended jointing compound for major unit assembly. Can be used on just about anything except the cylinder head gasket.
116. Studloc (Loctite, 10ml) - (ar) - GAC100
Specially formulated adhesive used widely in the aero and automotive industry during assembly to lock studs, bolts, screws, nuts and bearings into position. Loctite is designed to fill the airspace between threads forcing out the air, bond to all metals and cures creating a secure assembly that will not loosen. It also seals the assembly from moisture, preventing rust and corrosion.
117. Grease (copper, anti-seize, 85gm) - (ar) - RX1345
Provides excellent protection for metal parts against seizure, corrosion, heat, rust, acid and water. This grease may be used on head studs, bumper fixings, suspension bolts etc. - in fact just about any threaded object on the car which is likely to corrode.
118. Engine Oil 'Catrol XL' (HPR 20W/50) - (ar) - RX1363
1 gallon/4.55 litre.
Is a low detergent traditional multigrade engine oil, ideally suite to older technology modern classics. Compared to modern engines using sophisticated oil pumps to deliver higher pressures with low viscosity oils, modern classic vehicles have wider tolerances and require higher viscosity multigrade oils to operate at the optimum performance level.
Castrol Classic XL 20W/50 offers excellent oil consumption and very high level of engine wear protection.
119. Engine Oil 'Duckhams Q' (20W/50) - (ar) - HMP190100
1 gallon/4.55 litre.
120. Engine Oil 'Unipart' (HPR 20W/50) - (ar) - GGL104
1 gallon/4.55 litre.
Specially developed and prepared for Unipart, this premium oil is for use in older engines.
121. Running In Oil 'Castrol 2' - (ar) - RX1417
1 gallon/4.55 litre.
Mineral based multigrade lubricant to facilitate running-in of reconditioned engine. Provides controlled initial wear thereby minimising subsequent wear and friction loss.
122. Storage Oil 'Duckhams' - (ar) - HMP190104
1 gallon/4.55 litre.
Contains anti-corrosion additive, coats all exposed surfaces within the engine, sealing and protecting. The formulation permits the vehicle to be driven for short runs without changing the oil but, of course, a complete oil and filter change is required when the car goes 'back on the road'.
123. Engine Assembly Lube - (ar) - RX1358
250ml.
For lubricating engine components during assembly. Ideal on camshafts, connecting rods and bearings. Not for use on pistons or in ring area.
124. Anti-Freeze 'Unipart' - (ar) - GAC2018
1 litre.
Anti-Freeze 'Unipart' - (ar) - GAC2019
5 litre.
It's not just during the winter that you need protection for your engine and radiator. The inclusion of the glycol based Anti-Freeze not only stops the water from freezing up during the winter - at least blowing a hose or radiator core, or allowing the engine to run without adequate water until something nasty happens.
During the summer the liquid acts as a coolant by removing the heat more efficiently from the block and dispersing it even in the worst traffic jam. It also protects from corrosion damage.
125. Paint (engine black, aerosol) - (ar) - RX1432A
Paint (oil filter cannister, blue, aerosol) - (ar) - RX4000A
400ml.
126. Paint (engine, black, brush-on) - (ar) - RX1432B
Paint (oil filter canister, blue, brush-on) - (ar) - RX4000B
Keep your TR6 looking original by spraying your engine black after your rebuild and the oil filter canister blue.
Oil Cooler Kit
Our oil cooler kit includes the radiator, hoses and all fittings. The kit also converts the filter to the spin-on cartridge type. A thermostat is available separately.
Oil Cooler Kit - RR1296
Thermostat - RS1456
Oil Filter Only - RR1243
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Internal Engine
1. Crankshaft (reconditioned, exchange) - (1) - 307546R
To engine no. CP50000 ('long backed crank')*
Includes appropriate bearing sets.
Crankshaft (new) - (1) - 311322
From engine no. CP50001 ('short backed crank')*
Crankshaft (reconditioned, exchange) - (1) - 311322R
From engine no. CP50001 ('short backed crank')*
Includes appropriate bearing sets.
Tuftriding service also available, please enquire.
NOTE: 'Long' and 'short backed' refer to the depth of the rear oil seal surface. Having removed the flywheel and any spacers, if the end of the crank is flush with the engine back plate, it is a 'short backed' crank. If almost an inch of crankshaft stands proud, a 'long backed' crank is fitted. The flywheel design differs accordingly, ie. long back cranks use a recessed flywheel, short backs a non recess flywheel.
2. Plug (screwed, crankshaft oilways) - (6) - 118632
Ensure replacements are obtained before removal.
3. Plug (brass, oilway jet) - (6) - 149748
Ensure replacements are obtained before removal.
4. Main Bearing Set
Vandervell.
Standard - (1) - RTC1752V-VEL
+0.010 Oversize - (1) - RTC1752-010V-VEL
+0.020 Oversize - (1) - RTC1752-020V-VEL
4. Main Bearing Set
Glacier.
Standard - (1) - RTC1752AE
+0.010 Oversize - (1) - RTC1752-010AE
+0.020 Oversize - (1) - RTC1752-020AE
+0.030 Oversize - (1) - RTC1752-030AE
+0.040 Oversize - (1) - RTC1752-040AE
+0.060 Oversize - (1) - RTC1752-060AE
5. Thrust Washer Set
Glacier.
Standard - (1) - BHM1366
+0.005 Oversize - (1) - BHM1366-005
+0.015 Oversize - (1) - BHM1366-015
+0.025 Oversize - (1) - BHM1366-025
+0.030 Oversize - (1) - BHM1366-030
6. Con Rod Bearing Set
Glacier.
Standard - (1) - RTC1751AE
+0.010 Oversize - (1) - RTC1751-010AE
+0.020 Oversize - (1) - RTC1751-020AE
+0.030 Oversize - (1) - RTC1751-030AE
+0.040 Oversize - (1) - RTC1751-040AE
+0.060 Oversize - (1) - RTC1751-060AE
7. Con Rod Assembly (new) - (6) - 146454
Con Rod Assembly (reconditioned, exchange) - (6) - 146454R
8. Bush Kit (small end) - (1) - 119813K
9. Bush (small end) - (6) - 119813
10. Dowel (hollow, cap locating) - (12) - 107401
11. Bolt (special, connecting rod) - (12) - UKC2598
Use 'Loctite' when fitting.
12. Piston Set
Hepolite.
Standard - (1) - 148118HEP
+0.020 Oversize - (1) - 148118-020HEP
+0.030 Oversize - (1) - 148118-030HEP
+0.040 Oversize - (1) - 148118-040HEP
+0.060 Oversize - (1) - 148118-060HEP
12. Piston Set
Replacement.
Standard - (1) - 148118REP
+0.020 Oversize - (1) - 148118-020REP
+0.030 Oversize - (1) - 148118-030REP
+0.040 Oversize - (1) - 148118-040REP
+0.060 Oversize - (1) - 148118-060REP
13. Gudgeon Pin - (6) - 149215
14. Circlip (gudgeon pin retaining) - (12) - 508978
15. Piston Ring Car Set
Standard - (1) - RTC2430
+0.020 Oversize - (1) - RTC2430-020
+0.030 Oversize - (1) - RTC2430-030
+0.040 Oversize - (1) - RTC2430-040
+0.060 Oversize - (1) - RTC2430-060
16. Timing Gear (crankshaft) - (1) - 145864
17. Shim (0.004, timing gear alignment) - (ar) - 145275
Shim (0.006, timing gear alignment) - (ar) - 145276
18. Key (timing gear and pulley locating) - (1) - 133234
19. Oil Thrower - (1) - 119390
20. Sleeve (timing cover oil seal) - (1) - 133235
21. Camshaft (new) - (1) - 307689
All engine no. CP (150 bhp 2 rings on front journal).
Camshaft (reconditioned, exchange) - (1) - 307689R
All engine no. CP (150 bhp 2 rings on front journal).
Camshaft (new) - (1) - 311399
All engine no. CR (125 bhp 3 rings on front journal).
Camshaft (reconditioned, exchange) - (1) - 311399R
All engine no. CR (125 bhp 3 rings on front journal).
The installation of a '150 bhp' camshaft in place of a '125 bhp' item does not give an instant performance increase. Other items such as the cylinder head, metering unit and the distributor must be replaced and/or adjusted.
22. Cam Follower (tappet) - (12) - 143552
NOTE: It is vital that a camshaft and its followers are properly lubricated when installed and run in an engine for the first time. A suitable 'Cam Lube' must be used.
23. Plate (locating camshaft) - (1) - 105114
24. Screw (locating plate to cylinder block) - (2) - SH605071
25. Washer (locking) - (2) - GHF332
26. Timing Gear (camshaft) - (1) - 145865
27. Bolt (timing gear to camshaft) - (2) - 100500
28. Locktab (timing gear bolt) - (1) - 36411
29. Timing Chain Kit (duplex type) - (1) - RF4069
Includes Timing chain, oil seal, tensioner and gasket.
30. Timing Chain (duplex type) - (1) - 145870
31. Timing Cover (single timing mark type) - (1) - 214678
Original.
Timing Cover (multiple timing mark type) - (1) - 217790
Alternative.
32. Anchor Plate (tensioner) - (1) - 43752
33. Rivet (anchor plate to timing cover) - (2) - RR610040
34. Oil Seal (timing cover, single lip) - (1) - 125631
To engine no. CR2665.
Oil Seal (timing cover, double lip) - (1) - UKC1110
From engine no. CR2666.
35. Gasket (timing cover to front plate) - (1) - 211126
36. Tensioner (timing chain) - (1) - 145866
37. Pin (tensioner pivot) - (1) - 33214
38. Washer (plain) - (2) - WP18
39. Split Pin (tensioner pivot pin retaining) - (2) - PS103121
40. Screw (hex head, timing cover to block) - (5) - SH605071
41. Washer (locking - (5) - GHF332
42. Screw (pan head, timing cover to block) - (5) - SE605031
43. Washer (locking) - (5) - GHF332
44. Stud (timing cover to cylinder block) - (2) - 100433
45. Washer (locking) - (2) - GHF332
46. Nut - (2) - GHF201
47. Dowel Pin (timing cover location) - (2) - DP514
48. Flywheel (with ring gear, new) - (1) - 148041
To engine no. CP50000. Recessed - fits 'long backed' crank.
Flywheel (with ring gear) - (1) - 148041R
Reconditioned, exchange.
To engine no. CP50000. Recessed - fits 'long backed' crank.
Flywheel (with ring gear, new) - (1) - 151214
From engine no. CP50001. Non recessed - fits 'short backed' crank.
Flywheel (with ring gear) - (1) - 151214R
Reconditioned, exchange.
From engine no. CP50001. Non recessed - fits' short backed' crank.
49. Ring Gear - (1) - 201350
50. Dowel Pin (locating clutch cover) - (3) - DP411
51. Dowel Pin (locating flywheel) - (1) - DP619
52. Bolt (flywheel to crankshaft) - (4) - UKC4254
Fit with 'Loctite'.
53. Spigot Bush (crankshaft) - (1) - 47246
To engine no. CP50000. (1" x 1" in crank).
Spigot Bush (crankshaft) - (1) - 151213
From engine no. CP5001. (1" x 1/2" in flywheel).
54. Oil Seal (crankshaft rear) - (1) - 143456
55. Front Pulley & Damper - (1) - 214479
56. Extension (fan) - (1) - 148831
57. Dowel Pin (locating extension) - (2) - DP508
58. Bolt (extension & pulley to crankshaft) - (1) - 148832
59. Fan Belt (3/8 wide) - (1) - 214239
To engine no. CR5000.
Fan Belt (3/8 wide) - (1) - GFB142
From engine no. CR50001.
NOTE: Ensure both pulley groove and fan belt are the correct 3/8 width. (A wider 1/2 belt and pulley system was used on carburettor fitted TR6's for the North American market).
All engine no. CP models.
60. Fan (8 blade, plastic, yellow) - (1) - 308353
To engine no. CP50000.
61. Fan (7 blade, plastic, yellow) - (1) - 311868
From engine no. CP50001 to CR1.
62. Fitting Kit (fan blade) - (1) - 308353FK
63. Bush (fan to extension) - (8) - 108496
64. Sleeve (fan to extension) - (4) - 108499
65. Washer (plain) - (4) - 108495
66. Tab Washer - (2) - 107857
67. Bolt (fan to extension) - (4) - BH605101
All engine no.CR models.
68. Fan (13 blade, plastic, red) - (1) - 312301
69. Adaptor (fan extension) - (1) - 157876
70. Fitting Kit (fan blade) - (1) - 308353FK
71. Bolt (adaptor to extension) - (4) - BH605131
72. Washer (plain) - (4) - GHF301
73. Bolt (fan to adaptor) - (4) - BH605101
74. Washer (plain) - (4) - GHF301
To engine no. CP53747.
75. Oil Pump Assembly (cast iron body)* - (1) - 149634
76. Rotor & Spindle Assembly - (1) - 508975
77. Filter (oil pump) - (1) - 149621
78. Bolt (oil pump, 3" long) - (2) - BH604241
79. Bolt (oil pump, 3 1/2" long) - (1) - BH604281
80. Washer (locking) - (3) - GHF331
* The later, higher capacity aluminium bodied oil pump can be used to replace the earlier cast iron version.
From engine no. CP53748.
81. Oil Pump Assembly (aluminium body) - (1) - 217488
82. Body (oil pump) - (1) - 217486
83. Rotor & Spindle Assembly - (1) - 519569
84. Strainer Assembly - (1) - TKC2006
85. Bolt (oil pump to cylinder block) - (3) - HB726
86. Washer (locking) - (3) - GHF331
87. Drive Shaft & Gear Assembly - (1) - 149099
88. Shaft (driving oil pump & gear) - (1) - 149097
89. Gear (driving shaft) - (1) - 126785
90. Pin (mills, securing driven gear) - (1) - 500974
91. Gear (driving distributor & metering unit) - (1) - 149098
92. Pin (mills, securing gear to shaft) - (1) - 500975
93. Bush (supporting drive shaft assembly) - (1) - 149776
94. Distributor Pedestal Assembly - (1) - 308396
Distributor Pedestal Assembly - (1) - 308396R
Reconditioned, exchange.
95. Gear (driving metering unit) - (1) - 149100
96. Seal (fuel) - (1) - 145720
Always replace both seals at the same time.
97. Seal (oil) - (1) - 145720
Always replace both seals at the same time.
98. Plug (driving gear thrust & pedestal sealing) - (1) - 149226
99. 'O' Ring (on plug) - (1) - 145724
100. Screw (thrust plug retaining) - (1) - 157092
Fit with 'Loctite'.
101. Washer (plain) - (1) - WC701121
102. Gasket (pedestal to cylinder block)* - (ar) - 104939
Note * Refer to the factory workshop manual for details on using these gaskets as shims to set end float.
103. Stud (distributor pedestal, short) - (1) - 101962
1 1/4".
104. Stud (distributor pedestal, long) - (1) - FHS2520
2 1/2".
Carburettor models use 2 short studs.
105. Washer (locking) - (2) - GHF332
106. Nut - (2) - GHF201
107. Screw (distributor to pedestal) - (1) - SH605051
108. Washer (locking) - (1) - GHF332
109. 'O' Ring (metering unit to pedestal) - (1) - 149486
110. Drive (plastic, metering unit) - (1) - 149595
111. Screw (metering unit to pedestal) - (3) - SH604071
112. Washer (locking) - (3) - GHF331
113. Washer (plain) - (3) - WC701121
114. Timing Disc - (1) - RX1359
Timing degree disc for accurate installation of any camshaft where the performance setting is required.
115. WD40 (400ml can) - (ar) - GAC111
116. Jointing Compound (80ml) - (ar) - GHF6093
117. Studloc (Loctite, 10ml) - (ar) - GAC100
118. Grease (copper, anti-seize, 85gm) - (ar) - RX1345
119. Engine Assembly Lube (250ml) - (ar) - RX1358
Cylinder Heads
Cylinder Head Specification
Our reconditioned exchange cylinder head assemblies are suitable for running both unleaded or leaded fuels. Note that injection cars also require Bosch fuel pump and modified metering unit for unleaded application.
For North American spec heads and components, please refer to the NAS section.
Specification :-
New Inlet Valves, New Exhaust Valves, New Valve Springs, New Valve Guides, Hardened Exhaust Valve Seats.
Units supplied assembled less rocker pedestals, shaft and rocker arms. Compression ratio 9.5:1.
If you have a requirement for an uprated cylinder head (Stage 2 or 3), please contact our sales office.
| Cylinder Head Identification |
Casting
Number |
Head
Number |
Machined Head
Assembly |
Service
Head Assembly
(less valves) |
Service
Head Assembly
(inc valves) |
| 308351 |
308351 |
516816 |
516799 |
516798 |
| 312388 |
312388 |
218225 |
520870 |
520869 |
| V3298 |
313248 |
219015 |
520871 |
UKC1420 |
Note: Other cylinder heads do appear. All 2.5 litre heads may be
interchangeable, with modifications. |
1. Cylinder Head Assembly (reconditioned, exchange) - (1) - 516798R
To engine no. CP75000.
Cylinder Head Assembly (reconditioned, exchange) - (1) - 516798R
From engine no. CP75001 to CR5000.
Cylinder Head Assembly (reconditioned, exchange) - (1) - UKC1420RTR6
From engine no. CR5001.
2. Cylinder Head (bare) - (1) - 516798R
To engine no. CP75000.
Cylinder Head (bare) - (1) - 520870
From engine no. CP75001 to CR5000.
Cylinder Head (bare) - (1) - 520871
From engine no. CR5001.
NOTE: A bare cylinder head includes valve guides only.
3. Core Plug Set (block/head) - (1) - RG1034
4. Core Plug (large, rear face of head) - (1) - 144648
1 5/8" diameter.
5. Core Plug (small, rear face of head) - (1) - 144686
1 1/4" diameter.
6. Screw (plugging rocker oil feed) - (1) - 101022
7. Washer (copper, sealing screw) - (1) - 500469
Valves, Guides & Springs
8. Guide (inlet valve, short, 2.0625");
Standard - (6) - 58923
Uprated (Silicone/Bronze) - (6) - 58923UR
9. Guide (exhaust valve, long, 2.25");
Standard - (6) - 111869
Uprated (Silicone/Bronze) - (6) - 111869UR
10. Insert (valve seat, inlet) - (6) - 146496
All engine no. CP models.
Insert (valve seat, inlet) - (6) - 159903
All engine no. CR models.
11.
