Small
H.P. Articles Small
H.P. Articles
| Issue | Page(s) | Subject | Scan | Notes |
| 52-3 | 45 | 20 HP Starting Carb. Maintenance | Yes | about manifold jet/modifications |
| 53-5 | 108 - 110 | 20 HP article including Tools (Tools19xx files) | Yes | including tool list/pictures |
| 54-2 | 135 | Wheel and Inner Tube Facts | Yes | charts/diagrams |
| 54-5 | 159 | 20 HP Battery Ignition Timing | Yes | |
| 56-1 | 223 | Balancing Rolls-Royce Wheels (three weight type) | Yes | on the car |
| 57-3 | 286 | The 20 HP in Theory and Practice - article | 4 speed shown | |
| 57-4 | 296-297 | Acid Cleaning Blocks and Heads - non alloy | Hydrochloric - see also 310 and 904 | |
| 57-4 | 297 | 20 HP instruments (early) | ||
| 57-5 | 303 | Chrome Plating Radiator | ||
| 57-6 | 310 - 311 | Copper Tube replacement in Heads and Blocks | Tool Drawings/ procedures | |
| 59-1 | 373 | Valve Seating | ||
| 61-1 | 488 - 491 | Automotive Industries Article - 20 HP - 10/26/1922 | ||
| 61-1 | 494 | Head Torquing Sequence | Yes | PII, but applies |
| 61-2 | 500 | Autocar Road Tests - 20 HP - 03/8/1929 | ||
| 61-3 | 520 - 521 | Parts Diagrams and facts | Nuts, bolts, washers, pins, etc. | |
| 62-3 | 593 | Axle Ratios, Tire Sizes, Shaft RPM vs Road Speed | Yes | 20 HP thru Silver Wraith |
| 63-6 | 699 | Spark Plug Tuning | ||
| 64-1 | 715 | 20 HP Servo Notes (see also 1198 and 1212) | Yes | See also 328, 336 on PII |
| 64-3 | 738 | Shock Absorbers (20/25) | ||
| 65-2 | 799 | 20 HP Steering Geometry (early) | ||
| 65-2 | 800 - 801 | Rod Bearings - detailed instructions | Important | |
| 65-4 | 822 | Clutch Adjustments | Yes | Diagramed |
| 65-5 | 836 | Generator Refurbish | Yes | |
| 66-4 | 900 | Starter Drive Clutch | Yes | Including Manual Diagram |
| 66-4 | 904 | Acid Cleaning Heads and Blocks - non alloy | Phosphoric - see also 296 | |
| 66-6 | 927 | Ring and Pinion Backlash - PI | ||
| 67-1 | 934 | Fasal's 20 HP Restoration | ||
| 68-2 | 1051 | Pre War Steering Adjustment | Yes | |
| 68-3 | 1068 | Ballast Resistors | Yes | |
| 69-2 | 1148 - 1149 | Chassis Stands for Rotation Work | ||
| 69-2 | 1152 | Auto Vac Restrictor Valve Maintenance | Yes | |
| 69-4 | 1177 | Blinker Diagram | Modern Add On | |
| 69-5 | 1198 - 1199 | Servo Systems - Working Description - Diagrams | Yes | see also 715 |
| 69-6 | 1212 | Servo Adjust and Overhaul (20/25) | see also 715 | |
| 70-1 | 1232 | Hub Removal Tool | ||
| 70-2 | 1246 | Hub Removal Tool | ||
| 70-4 | 1276 | Brake Cable Details | Yes | |
| 70-4 | 1276 | Starting Carb Procedure | Yes | Close the butterfly to start |
| 71-2 | 1340 | Small HP Water Pump Shaft | Diagramed | |
| 71-2 | 1341 | British Screw Thread Charts | see also 1439 | |
| 71-2 | 1342 | Switch Box Info | ||
| 71-2 | 1344 | 20 HP Tools | Listed | |
| 71-3 | 1352 | Voltage Regulator Facts | ||
| 72-2 | 1435 | Spring Shackle Pins (20/25) | Diagramed | |
| 72-2 | 1439 | British Screw Threads (update) | see also 1341 | |
| 72-5 | 1489 | Cylinder Block Cleaning | Info on tubes | |
| 72-5 | 1494 | 25-30 Engine Overhaul | Yes | 1514, and 1532 |
| 73-2 | 1549 | Steering Tube (seizure) Separation Procedure | oil pressure method | |
| 74-2 | 1641 | Gasket Set Parts #'s - ordering | ||
| 74-3 | 1666 | Arrangement of Pistons "Gosehawk" | ||
| 74-5 | 1698 | 20 HP Chassis Drawing and Body Design | ||
| 75-1 | 1740 - 1744 | Rebuilding the 20 HP Engine (Part I ) | Yes | |
| 75-2 | 1756 - 1760 | Rebuilding the 20 HP Engine (Part II ) | Yes | |
| 75-3 | 1776 - 1783 | Rebuilding the 20 HP Engine (Part III ) | Yes | |
| 75-4 | 1796 - 1807 | Rebuilding the 20 HP Engine (Part IV ) | Yes | |
| 75-5 | 1821 | Full Flow Oil Filter on a 20 HP | ||
| 76-1 | 1850 | Particulars of Cylinder Heads | Yes | 20 HP, 20/25, and 25/30 scanned |
| 76-5 | 1914 | Fitting New Flywheel Gear Ring | ||
| 77-2 | 1960 - 1961 | Errata on 20 HP Rebuild articles | Yes | See pp.1740 |
| 77-5 | 2014 - 2015 | Magneto Servicing | Yes | |
| 77-6 | 2021 | Battery Cables and other Fittings | Yes | |
| 78-3 | 2076 | Radiator Dent Removal | ||
| 78-5 | 2103 | Flying Lady Mascot Dimensions | Yes | Chart of all Models |
| 78-5 | 2110 | Rewire to use Stop Lights | ||
| 79-3 | 2174 | Overdrive for Pre War Cars | Supplier listed | |
| 80-3 | 2270 | Fuses (Wire Sizes) | ||
| 80-4 | 2284 | Lucas Headlamp Hinge Pins | ||
| 81-2 | 2380 | Piston Refurbish | Yes | |
| 81-5 | 2440 | Restoration of Headlamp | ||
| 82-4 | 2578 | Painting Chassis | ||
| 83-2 | 2690 - 2691 | Lamp Recognition Chart & Replacements | Yes | |
| 83-6 | 2812 | Metal Fabrication Ad | ||
| 84-3 | 2876 - 2881 | Re-Wiring and Sources | Yes | |
| 84-4 | 2906 | RROC Ephemera Reprints List | Yes | MS Word File |
| 85-1 | 2980 | RREC Brake Systems Book Review | ||
| 85-4 | 3051 - 3054 | Springs - Semi Elliptic Renewing | Yes | |
| 86-2 | 3142 | Water Pump Woes | Yes | |
| 86-3 | 3159 | Carburetor Low Speed Jet | Yes | |
| 86-4 | 3192 | Wiring Material Source | ||
| 86-6 | 3279 | Small HP Block Freeze Damage | ||
| 86-6 | 3283 - 3284 | Fuses/Wiring & US/British Chart | Yes | |
| 87-3 | 3411 | Carburetor High Speed Jet | ||
| 87-5 | 3496 | Enots for 20 HP Gaiters | Yes | |
| 88-2 | 3619 | Petrol Tank Fabrication for 20 HP | ||
| 88-3 | 3666 | Magneto Mumbo Jumbo | ||
| 88-4 | 3731 | Wheel Restoration Parts | ||
| 89-2 | 3880 | Magnetos - Cont'd | ||
| 89-3 | 3928 | Engine Balance of 20 HP | ||
| 89-5 | 4015 | Intake Manifold Leak Detection - 20 HP | ||
| 90-2 | 4112 | Lucas Lamps | ||
| 92-1 | 4430 | Lucas Lamp Dipping | ||
| 92-5 | 4537 | Wheel Weights | ||
| 94-1 | 4765 | Overdrive on a 1925 20 HP | ||
| 94-2 | 4800 | Water Bypass on a 20 HP | ||
| 94-3 | 4823 | Replica Body and Wings | ||
| 96-2 | 5161 | Pre War Models by Quantity | Yes | |
| 96-4 | 5216 | Plating at Home | ||
| 96-5 | 5242 | Wings- Fabrication, Welding in Aluminum | ||
| 97-1 | 5317 | Bakelite Repair | Yes | |
| 97-3 | 5366 | Cowl Running Lights (a picture) | ||
| 97-3 | 5379 | Exhaust Manifold Repair Process & Products | Yes | |
| 97-4 | 5395 | A 20 HP Pictured | ||
| 97-4 | 5405 - 5407 | Small HP Tech Seminar | Yes | |
| 98-5 | 5621 - 5626 | Electrics - Pre War & Sources | Yes | |
| 98-6 | 5660 | A 20 HP Dash Picture | ||
| 99-1 | 5711 - 5714 | Brake Information | Yes | |
| 99-2 | 5745 - 5746 | Jubilee Clamps & Size Chart | Yes | |
| 99-3 | 5780 - 5785 | Small HP Tranny Rebuild (Part I) | Yes | |
| 99-4 | 5823 - 5829 | Small HP Tranny Rebuild (Part II) | Yes | |
| 99-6 | 5875 | Valve Spring Tool Use | Yes | |
| 00-1 | 5934 - 5939 | Small HP Servo | Yes | |
| 00-1 | 5939 - 5940 | Pinion Seal for Differentials | Yes | |
| 00-2 | 5978 | Key Types | ||
| 00-4 | 6042 | James Young Coachwork | ||
| 00-4 | 6050 | Removal of 20/25 Wheel Bearing Parts | ||
| 00-5 | 6094 | Key Type Errata | ||
| 00-6 | 6135 - 6140 | Vibration Damper | Yes | |
| 01 . 1 | 6170 | Pre War Decoke Seminar | ||
| 01 . 4 | 6326 - 6327 | Rolls - Royce Nuts and Bolts | Yes | |
| 01 . 5 | 6378 - 6379 | Voltage Regulators, Generators, and Batteries | Yes |
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