DataUseful information on the Rover P5 (3 Litre) and P5B (3.5 Litre)...
Rover P5 (3 Litre) and P5B (3.5 Litre) Data. Here’s some hopefully useful information that I’ll keep updating over time. Key information from blog posts will also be added here so it doesn’t get buried in the blog itself. I’ve had such difficulty finding information, good garages and other resources for classic Rovers that I thought it would be useful for me to list everything in one place, eve if only for my own use!
If you want to add something just let me know and I’ll be happy to add it, including overseas companies.
Rover P5 and Rover P5B Basic Data
|0-60 mph||12.4 seconds|
|Top Speed||108 mph|
|General Configuration||Front-engine RWD|
|Capacity||215.3 cu in||3500 cc|
|Fuel Delivery||Twin SU Carburettors|
|Suspension Front||Independent, torsion spring|
|Suspension Rear||Live axle, semi-elliptical leaf springs|
|Steering||Hydrosteer variable ratio|
|Gearbox||3-speed automatic, Borg-Warner Type 35|
|Length||186.5 in||4737 mm|
|Width||70 in||1778 mm|
|Height (Coupe)||58 in||1473 mm|
|Height (Saloon)||61 in||1549 mm|
|Wheelbase||110.5 in||2807 mm|
|Weight||3,498 lb||1587 kg|
Rover P5 and Rover P5B Service Items
|Engine Oil||Penrite Classic Light||High Zinc content good for classic engines.|
|Auto Transmission Fluid||Castrol TQF||Conforms to Type G Ford Spec M2C-33G. Avoid any Dexron types.|
|Power Steering Fluid||Castrol TQF|
|Brake Fluid||Any DOT4 fluid|
|Clutch Fluid||Any DOT4 fluid|
|SU Damper Oil||Any SAE20 Oil or Comma ATF||SAE20 but no thicker.|
|Anti-freeze||Standard Bluecol Blue||Mixed 50:50. Avoid modern Organic Additive Technology (OAT) antifreezes. You want a traditional Inorganic Additive Technology (IAT), ethylene glycol based anti-freeze with inhibitors for alloy engines.|
|Spark Plugs||Champion L87YC / L92YC|
|Contact Breakers||pre 72: Lucas DSB 111 / Internotor 23420 / Unipart GCS 108|
Post 72: Lucas DBS 117 / Intermotor 23430 / Unipart GCS 2117
|Power Steering Belt||tbd|
|Air Filter||Unipart GFE 1111 / Fram CA2634 / Crossland 806|
|Oil Filter||Unipart GFE 145 / Fram PH25 / Crossland 313|
The manual suggests any 20W50 oil, but here’s a very useful thread on the P5 Club Forum. Seems there’s concern over the amount (or lack of) Zinc in modern oils, and that may be causing wear to classic engines.
Automatic Transmission & Power Steering
On to another can of worms. The P5 Club Forum has this handy thread. Seems there’s concern over ‘Dexron’ type fluids that were specified by GM, as they contain friction modifiers which help to smooth out the changes on boxes that were designed to be used with it. The P5B Borg-Warner 35 that the P5B uses wasn’t designed to use it, and it can cause slip and changing problems apparently. You need an oil that conforms to Type G Ford Spec M2C-33G.
Rover P5 and Rover P5B Service Data
|Firing Order||1-8-4-3-6-5-7-2||Left F-R: 1-3-5-7
Right F-R: 2-4-6-8
|Spark Plug Gap||0.7mm / 0.025in|
|Contact Breaker Gap||Dwell Angle 26 - 28 degrees||0.35 - 0.40mm / 0,014 - 0,016 as initial setting.|
|Ignition Timing||6 degree BTDC mark on crankshaft pulley||Dynamic setting 5-600 rpm.|
|Oil Pressure||30-40 lb/sq in at 2,400rpm|
|Fan Belt Adjustment||11-14mm movement|
|Power Steering Belt Adjustment||6-9mm movement|
Rover P5 and Rover P5B Wheels & Tyres
Wheels are 5 x 5in PCD pattern (5 x 127mm), 15 inch diameter. They were popularly called Magnum style (as in Magnesium style) but now are better known as Rostyle wheels. The R and O of Rostyle not being from ROver, but from Rubery Owen, the British company that produced them.
The original tyres were cross-ply Avon Turbospeed or Dunlop Roadspeed, 6.70 x 15. Cross-ply tyres were much ‘taller’ than radial-ply tyres, with a standard profile of 100%. So, 6.70 inch width at 100 profile is 6.70 inch sidewall height, or 171mm. To have that sidewall height a modern 70-profile tyre would need to be 243 mm wide (171/0.7), the nearest standard size tyre to that being 245/70 15 – much too wide for a standard P5B wheel and arch, and much too much stress on the steering components.
So, we need to make some compromises. The tallest radial-ply tyre is 80-profile. That would equate to 214mm wide (171/0.8), the nearest standard size tyre being 215/80 15. That may fit, but is still generally considered too wide – 205 width is about as far as most people go. Also, 80-profile tyres are only really available for vans (unsuitable) or 4x4 vehicles (SUV’s or off-roaders), some of which are either too coarse for on-road car use or don’t have sufficient speed rating. There are a few that may be suitable though, and when you consider the weight and suspension layout of a P5, it’s not too dissimilar to a 4x4 vehicle (a P5B having a solid rear axle, rear elliptical springs and weighing 1,600Kg, whereas a typical 4x4 is around 2000kg).
A 195/80 or 205/80 4x4 tyre with a tread pattern for mainly on-road usage still has a lower sidewall than the original 171 mm (156mm and 164mm respectively). If you want to use a car tyre, it seems the only real options are 70-profile tyres, and you’ll just need to live with the lower-profile look of the tyre (205/70 is a 144mm sidewall height), the inaccuracy of the speedometer / odometer and the increased engine speed for a given road speed.
A great generic resource on tyres and wheels is The Wheel And Tyre Bible.
|Size||Make||Width||Sidewall Height||Circumference||% Difference||Indicated 70mph Is Actually||Notes|
|6.70 x 15||Avon Turbospeed or Dunlop Roadspeed||6.70 inches / 171 mm||6.70 inches / 171 mm||2174 mm||-||70 mph||Original factory-fitted tyre, crossply.|
|195/80 15||4x4 tyre||195 mm||156 mm||2089 mm||4%||67 mph|
|205/70 15||Car tyre||205 mm||144 mm||2014 mm||7%||65 mph|
|205/80 15||4x4 tyre||205 mm||164 mm||2137 mm||2%||69 mph|
Cross Ply tyres recommended to be inflated to 26 psi.
Radial tyres are recommended to be inflated to 30 psi.
Rover P5 and Rover P5B Paint Codes
|Admiralty Blue||P030-6856||Indigo Blue (P030-9932) 40%
Blue Lake (P030-9930) 27%
Black (P030-9929) 26%
White (P030-9901) 7%
|Silver Birch||P030-4891||White (P030-9901) 89%
Reduced Yellow Oxide (P062-9911) 6%
Black (P030-9929) 4%
Reduced Permanent Green (P062-9905) 1%
|Bordeaux Red||P030-4890||Garnet Maroon (P030-9923) 55%
Black (P030-9929) 28%
Turkey Red Oxide (P030-9915) 15%
White (P030-9901) 2%
|Zircon Bue||P030-4508||Permanent Blue (P030-9904) 41%
Permanent Green (P030-9905) 27%
White (P030-9901) 20%
Black (P030-9929) 10%
|Arden Green||P030-4881||Black (P030-9929) 47%
Fast Yellow (P030-9970) 30%
Permanent Green (P030-9905) 19%
Turkey Red Oxide (P030-9915) 3%
White (P030-9901) 1%
|Burnt Grey||P030-4888||Black (P030-9929) 48%
White (P030-9901) 36%
Yellow Oxide (P030-9911) 9%
Turkey Red Oxide (P030-9915) 7%
Rover P5 and Rover P5B Parts Suppliers
|J R Wadhams Ltd||UK - West Midlands||+44 (0) 1384 891800||www.jrwadhams.co.uk||Sell and manufacturer most parts for P4, P5/P5B and P6/P6B.|
|David Green||UK||www.davidgreen-p5.co.uk||Supplier of many second-hand and occasionally NOS parts.|
|Burlen Ltd||UK - Wiltshire||+44 (0) 1722 412500||www.burlen.co.uk||Sole Manufacturer of Genuine SU Carburettors, Fuel Pumps and Spares.|
Rover P5 and Rover P5B Cleaning & Care
|Gliptone||Leather Cleaner and Leather Conditioner||Works really well, smells good!|
Vehicle Registration Plates
Data is included only for the years the P5B was in production.
|-||Pre February 1963||Not year-related.|
|A||February 1963 - 31 December 1963|
|B||1 January 1964 - 31 December 1964|
|C||1 January 1965 - 31 December 1965|
|D||1 January 1966 - 31 December 1966|
|E||1 January 1967 – 31 July 1967||Although pre-P5B commercial launch, some brochures show E-registered cars.|
|F||1 August 1967 – 31 July 1968||Rover P5B introduced in September 1967.|
|G||1 August 1968 – 31 July 1969|
|H||1 August 1969 – 31 July 1970|
|J||1 August 1970 – 31 July 1971|
|K||1 August 1971 – 31 July 1972|
|L||1 August 1972 – 31 July 1973|
|M||1 August 1973 – 31 July 1974||Rover P5B ceased production in 1973.|
Black number plates with white or silver characters are permitted on vehicles registered before 1 January 1973.
The ‘year identifier’ is a handy way to know the age of the vehicle (at leafs when it was first registered). Until 1967 the year letter changed on 1 January each year, but car buyers would then wait until the New Year for the new letter to be issued so they could get a “newer” car. This led to major peaks and troughs in sales over the year. To help flatten this out, in 1967 the change of year letter occurred on 1 August rather than 1 January. So “E” suffixes ran only from 1 January to 31 July, before “F” suffixes commenced on 1 August.
Rover P5 and Rover P5B Garage Services
|Beech Hill Garage||UK - Berkshire||+44 (0) 118 988 4774||www.beechhillgarage.com||MG specialists who are very knowledgeable on any MG-Rover, Austin-Rover, British Leyland, or BMC car (plus many other classics).|
|AJF Motor Engineers Ltd||UK - Buckinghamshire||deleted||deleted||Not recommended. Slow, failed to fix the fuel leak, left car filthy inside and damaged the paintwork whilst replacing screen rubbers.|
Rover P5 and Rover P5B General Services & Suppliers
|Tex Automotive||UK - Oxfordshire||+44 (0) 1993 893500||www.texautomotive.com||General car accessories made in UK since 1947.|
|Old School Windscreen Services||UK - Surrey||+44 (0) 1932 873506||www.oldschoolwindscreens.co.uk||A family run business gathering expertise and knowledge since the 1950's.|
|Vehicle Wiring Products||UK - Derbyshire||+44 (0) 115 9305454||www.vehicle-wiring-products.co.uk||Stocks thousands of cables, terminals, connectors, crimp tools, switches, fuse boxes, brake pipe and fittings etc.|
Rover P5 and Rover P5B Web Resources
|Rover P5 Club||Owners Club||www.roverp5club.org.uk|
|Rover P5 Club Forum||Forum||www.roverp5.proboards.com|