|
|
|
Triumph TR6 Fuel System - Injection |
|
Page Contents
To Body No. 51887CP From Body No. 51888CP RH steering from Body No. 52328CP
©Rimmer Bros Ltd - Registered in England No. 2155394. VAT No. GB 352 8473 40.
Metering Units
Injectors
Injector Pipes
Pressure Relief Valves
Lucas Fuel Pump
Bosch Replacement Fuel Pump
Fuel Filter
Fuel Cut-Off Switch
Fuel Additive
Much has been written about the benefits and filings of the petrol injection system made by Lucas that was fitted to Triumph TR6 models. Few spares to assist the home repairer are available. The only major option is an exchange rebuilt unit, in the event of your own going wrong through normal wear and tear or internal failure. Units returned for exchange must be complete and serviceable or a surcharge will be levied until an acceptable item is received. (See illustration for acceptable condition.)
A standard metering unit is not suitable for unleaded fuel. All metering units supplied by Rimmer Bros are suitable for use with unleaded or leaded fuel.
1. 
Metering Unit (with push on petrol return tube) - (1) - 309154R
TO engine no. CP75314.
Metering Unit (with screw on petrol return tube) - (1) - 312529R
From engine no. CP75315 to CR1.
Metering Unit (with emission control system) - (1) - RKC94R
From engine no. CR.
The changing of engine components such as the camshaft or exhaust system may alter the fuelling requirements of an engine. The metering units listed above are for use on standard specification engines.
2. Union (push-on) - (1) - RR1384
3. Union (screw-on) - (1) - RR1385
4. Washer (outlet sealing) - (4) - 518495
5. Washer (inlet sealing) - (1) - 518496
6. Strainer - (1) - 519872
7. Plastic Drive (for metering unit) - (1) - 149595
8. Union Set (metering unit) - (1) - RR1297
9. Seal Set (installation, metering unit) - (1) - 516917
10. 'O' Ring (metering unit housing) - (1) - 149486
11. 'O' Ring (banjos) - (4) - 518493
12. Banjo Bolt - (2) - 518630
Outlet nos. 2 and 5.
13. Clip (choke cable to metering unit) - (1) - 149041
14. Clamp Assembly (choke cable) - (1) - AUE34
15. Trunnion (cable clamping) - (1) - 150342
16. Screw (cable clamping) - (1) - 150343
17. Screw (metering unit to drive housing) - (3) - HU707
18. Washer (locking) - (3) - WL207
19. Washer (plain) - (3) - WP7
20. Elbow (rubber) - (1) - 148946
21. Hose (vacuum) - (1) - 149609
22. Clip (hose attachment) - (1) - 514048
There are three different types of injectors and one of these is not serviceable (see illustration). If you find yourself in possession of the type that cannot be reconditioned please try to obtain one which can be for exchange purposes. The two serviceable types are identifiable by a wire 'C' clip fitted to the nozzle end of the injector. The non-serviceable type has the nozzle end held into the body by crimping. All injectors, after installation need to be 'bled' to expel any air from them. This will ensure that they work satisfactorily. If any of the fuel lines to the injectors is disconnected, they too will need 'bleeding' to purge them of air.
If your engine starts on less than 6 cylinders, the fault may be traced to either numbers 2 or 5 fuel injector. Often the misfiring of one of these two cylinders is caused by a faulty banjo bolt (part no. 518630), not a failed injector. Substitution of another injector that is know to be working will pin point these banjo bolts that include a non return valve, to be at fault.
23. Injector (new) - (6) - 157913
Injector (reconditioned, exchange) - (6) - 157913R
24. Adaptor (nylon, injector to manifold) - (6) - 516922
Push fitting.
Adaptor (nylon, injector to manifold) - (6) - 516922S
Screw fitting.
25. 'O' Ring (adaptor block to manifold) - (6) - 149511
26. Plate (clamping injectors) - (3) - 149308
Plate (clamping injectors) - (3) - 149308SS
Stainless Steel alternative.
27. Screw (clamping plate to manifold) - (3) - HU853
28. Washer (locking) - (3) - WL208
Always replace the banjo bolt 'O' rings (no.11) when fitting new injector pipes.
29. Injector Pipe Assembly Kit - (1) - RR1169
Set of 6 pipes - black nylon.
Injector Pipe Assembly No.1 - (1) - UKC351
30. Tube (black nylon, 30 1/4") - (1) - Refer to assembly.
31. Elbow (to injector) - (1) - 517307
32. Nipple & Nut (to metering unit) - (1) - 517306
Injector Pipe Assembly No.2 - (1) - UKC361
33. Tube (black nylon, 31") - (1) - Refer to assembly.
34. Elbow (to injector) - (1) - 517307
35. Banjo (to metering unit) - (1) - 517308
Injector Pipe Assembly No.3 - (1) - UKC371
36. Tube (black nylon, 30") - (1) - Refer to assembly.
37. Elbow (to injector) - (2) - 517307
Injector Pipe Assembly No.4 - (1) - UKC372
38. Tube (black nylon, 39 1/8") - (1) - Refer to assembly.
39. Elbow (to injector & metering unit) - (2) - 517307
Injector Pipe Assembly No.5 - (1) - UKC362
40. Tube (black nylon, 21 1/8") - (1) - Refer to assembly.
41. Elbow (to injector) - (1) - 517307
42. Banjo (to metering unit) - (1) - 517308
Injector Pipe Assembly No.6 - (1) - UKC352
43. Tube (black nylon, 20 1/4") - (1) - Refer to assembly.
44. Elbow (to injector) - (1) - 517307
45. Nipple & Nut (fitting to metering unit) - (1) - 517306
46. Clip (strapping pipes) - (3) - 145891
Engine no. CP models.
47. Clip (nylon, double)* - (2) - 148672
48. Clip (nylon, quadruple)* - (3) - 148673
* Engine no. CR models.
49. Injector Pipe Assembly Kit - (1) - RR1169BRAIDED
Set of 6 pipes, stainless steel braided.
All units are calibrated to give 105 - 110 psi which is the correct working fuel pressure for these Lucas injection systems. Early TR6 models (to body no. 51887CP) had a short (3/8") valve. All later TR6's had a longer (1 1/4") valve. They are interchangeable. The design change was adopted to help stop valve body distortion and subsequent relief valve pressure fluctuations. For further information on setting the pressure relief valve, please refer to the workshop manual.
50. Relief Valve & Strainer Assembly - (1) - 152066
51. Strainer - (1) - 152069
52. Relief Valve (short bodied, new) - (1) - 149811
Relief Valve (short bodied, reconditioned exchange) - (1) - 149811R
53. Dowty Washer (relief valve) - (1) - 156981
54. Relief Valve & Strainer Assembly - (1) - 156160
55. Strainer - (1) - 152069
56. Relief Valve (long bodied, new) - (1) - 156167
Relief Valve (long bodied, reconditioned exchange) - (1) - 156167R
57. Dowty Washer (relief valve) - (1) - 156981
58. 'T' Piece (PRV mounting) - (1) - 149773
59. Dowty Washer (relief valve to 'T' piece) - (1) - 152068
60. Mounting (flexible) - (4) - UKC2451
61. Washer (plain) - (4) - WP7
62. Washer (locking) - (4) - WL207
63. Nut (plain) - (4) - HN2007
This unit was not a wonderfully designed piece of engineering. It is based on a windscreen wiper motor and is required to operate continuously at a much higher speed. The increase raises its running temperature to a point where, in high ambient temperatures it is likely to vaporise the fuel as it enters the pump housing. The incoming fuel then takes on the role of a coolant for the pump. If the fuel temperature is raised too high it will vaporise. The pump has no resistance when pumping fuel so the motor overspeeds; this is the wailing tone the pump makes as the engine stops working. Keeping the pump cool and subsequently the fuel within it, is of primary importance. The solution is a cooling coil that fits around the petrol pump motor. It carries diverted spilt fuel from the pressure relief valve around the pump motor before returning it to the petrol tank. The fitment of a petrol pump cooling coil is strongly recommended.
The Lucas pump is not compatible with unleaded fuels and must be run with a suitable fuel additive. Should Lucas pumps become available - suitable for unleaded fuel, refer to Price Guide (or our sales office) and suffixed part number.
An alternative to the Lucas pump / cooling coil combination is the Bosch type replacement pump. This is of more modern design and extremely reliable if installed correctly (it’s also a lot quieter and compatible with unleaded fuels.) See below for further details.
64. Petrol Pump (new) - (1) - 214347
Petrol Pump (reconditioned exchange) - (1) - 214347R
66. Pump Repair Kit (includes brushes, springs and seals) - (1) - 214347RKIT
67. 'O' Ring (sealing pump to motor body) - (1) - 517413
68. Seal (drive shaft) - (1) - 517419
69. Brush & Spring Set - (1) - 517416
70. Brush Gear - (1) - 517644
71. Union (outlet and inlet) - (2) - 518632
72. Washer (sealing) - (2) - 518495
73. Mounting (flexible) - (3) - UKC2451
74. Washer (plain) - (3) - WP7
75. Washer (locking) - (3) - WL207
76. Nut (plain) - (3) - HN2007
77. Cooling Coil (petrol pump) - (1) - RR1135
Fuel Injection Components
The Bosch pump is an ideal replacement for the notoriously unreliable Lucas unit. It is installed in the same position and can be easily piped in and wired following the instructions supplied. The quiet operation and suitability for both leaded and unleaded fuel make it an ideal choice for any PI car.
78. Bosch Petrol Pump Kit - (1) - 214347BOSCH
79. Bowl Assembly - Fuel Filter - (1) - 215299
80. Fuel Filter Element - (1) - GFE5296
81. 'O' Ring (sealing element bolt) - (2) - 512147
82. Washer (sealing element retaining bolt) - (1) - 522940A
83. Connection Adaptor (vent pipe) - (1) - 148312
To commission no. CP50000.
84. Washer (sealing adaptor to filter head) - (1) - 150710
To commission no. CP50000.
85. Plug (screw, blanking fuel return port) - (1) - 153928
rom commission no. CP50001.
86. Washer (sealing plug) - (1) - 150710
From commission no. CP50001.
87. Plug (screwed, blanking) - (2) - 151203
88. Washer (aluminium, sealing plug) - (2) - 517957
Washer (copper , sealing plug) - (2) - 506682
Alternative.
89. Screw (filter assembly) - (2) - HU908
90. Washer (plain) - (2) - WP9
91. Washer (locking) - (2) - WL209
92. Nut (plain) - (2) - HN2009
LH Steering from Body No. 51399CP
93. Switch (inertia cut-off) - (1) - C41220A
94. Clip (switch) - (1) - 153109
95. Screw (clip to body) - (2) - KX4504
96. Washer (plain) - (2) - WP5
97. Washer (locking) - (2) - WL205
98. Nut (plain) - (2) - HN2005
99. Lead Substitute - (ar) - RX1407
Suitable for 'Leaded' engines to use unleaded fuel.
Return to TR6 Fuel Index 
Return to TR6 Index Page
Home
About Rimmer Bros.
Prices
General Info
Delivery
How to Order
Your Order Form
News
Restoration Projects
Picture Library
Triumph Links
Free Catalogue
Contact Us
The 'Triumph', 'Rover' and 'British Motor Heritage' Logos used herein are Registered Trade Marks of British Motor Heritage Ltd,
and are used with their Licence under the Special 'Heritage' approval Scheme.
All original part numbers & illustrations have been reproduced by kind permission of British Motor Heritage.