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Found 9 results

  1. Mark (smokey mow)

    Costin Walker F3/F4 Imp Rebuild

    I like to start my build threads with a little bit of background and history and although this cars history started all the way back in 1968 my knowledge and involvement with it began much later than that. Those of you that have seen my other posts and build thread will know that my involvement in single seaters and specifically Johnny Walker's F4 cars began in around 2014 when I bought my first JW4 Formula four car, one of the first 1966 250cc Mk2 chassis. Walker only made 56 cars of which only 12 were Mk2's and search to find original parts to rebuild my particular car lead me
  2. Mark (smokey mow)

    Smokey's JW4 Formula Four Rebuild Thread

    Much anticipated, and as promised, but before i give you the rebuild thread, first a history lesson...... Whenever I seem to mention Formula four people seem to pause for a moment, look at me and then question "did you say formula ford?" my answer is of course "no" which generally leads towards discussions about what exactly was formula four? When I speak of Formula Four i am referring to the 1960's variety, although more recently the columns of the motor sports media is once again being filled with talk of both FIA and MSV Formula 4. This thread is not about single seaters with wing
  3. Johnny Walker first began producing racing cars in 1965 with his prototype Walker Type 65, the following year the JW4 Mk2 his first production racing car was released to the market at the 1966 Olympia Racing Car Show. Chassis 6010 was originally built to Class 1 formula IV regulations with a 250cc single cylinder engine and later a 500cc Velocette but following the demise of Formula IV in the UK the car was to discover a new life as a hillclimb special in the hands of Ronald and John Shapley. By the mid-1970's Shapley had developed the car far beyond its origins. Carrying sponsorsh
  4. Those of you who have been following my JW4 rebuild thread will know I have quite an interest in anything relating historic Formula 4, and in the Coy's auction listing for the Autosport show happens to be a Tecno Formula IV car which was extracted 2-weeks ago from the garage of motorcycle dealer Don Hichcock. http://www.coys.co.uk/cars/circa-1964-tecno-k250-f4 Unfortunately I can't make it to the show or auction myself and Coy's have so far been unresponsive to my requests to view it at their premises before it is taken to the auction. Whilst I'm not looking to buy (I
  5. Mark (smokey mow)

    Springs (No not that question)

    That time has come to find some new springs for the single seater rebuild. I've got use to the fact that nothing is standard or indeed ever easy and the springs are proving to be no exception. With an all up minimum weight (including driver) of 500lbs (220kg) the spring rates adopted in period were 85lbs/ins front and 105lbs/ins for the rear. Faulkner have a range that comes close to this offering 80,100 and 125lbs/ins in a 1.9" diameter but i'm struggling to find anyone doing 85 or 105 unless I pay the extra for custom made specials. So the big question... Does anyone make 85lbs/ins and 1
  6. Chassis Number 7022D, this car was the original 1967/68 factory prototype during the transition from the Motorcycle engine 250/650cc Mk1 and Mk2 chassis’ to the 875cc car engine Hillman Imp/SAAB Mk3. In total 56 JW4’s were manufactured at Johnny Walker’s Gloucestershire factory between 1965 and 1969 and of them I am personally aware of Eight original JW4’s chassis’ that still remain worldwide. Five of these JW4’s are located in the UK (I presently own three of the five Including this one) and this is the only car engined example I am aware of that still remains in existence to this day. This
  7. Mark (smokey mow)

    O/T hillman Imp rear wishbones & Driveshafts

    It's a massive long-shot but it's worth asking just in case I'm on the lookout for a par of Hillman Imp Driveshafts, Drive flanges and rear wishbones for my JW4 build. If anyone happens to have any kicking around in their garages please get in touch else i'm off to ebay to start bidding. TIA Mark wsccessex@btinternet.com
  8. As a few of you know I now have a 1966 Johnny Walker Racing JW4 single seater in my car collection for a bit of a restoration. Various incarnations of the JW4 was built between 1965 and 1969. The early mk1 cars supplied from the factory were fitted with the 250cc Villiers Starmaker Engine, the Mk2 with a 650cc BSA A65 engines, Mk3 with Saab engines and Mk4's were designed for the IMP engine. My car is a Mk2. The Formula 4 regulations at the time stipulated that the retail price of a running engine should not exceed £150, this was intended to keep the cost down for competitors and any possi
  9. Mark (smokey mow)

    Nickel Bronze Braizing

    Does anyone have any reccomendation for companies that have the skills and capability for Nickel Bronze Brazing? I need some parts making for the JW4 but I've let down by my local specialist and am struggling to find an alternative company. Somewhere in Essex or Suffolk would be ideal, but I'm not worried if they're further away. Note: I'm not interested tig or mig welding etc as budget is not a consideration TIA
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