Of Interest to Pierce-Arrow Users.
Page 53
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A New Radiator.
UNITSVAL cooling and anti-vibration qualities are claimed for the new Pierce-Arrow radiator block recently placed on the market by Messrs. George Bright, West Heath yard, Mill Lane, West Harripatead, London, N.W.6, who are the sole Pierce-Arrow concessionnaires for the British Tales. It has been specially designed with a view to combating the radiator leakage trouble, frequently encountered with the old type.
The radiator in this particular make is supported by two pins, housed in spherical bushes, no springing of any kind being employed between the bushhousing and the main frame of the
chassis. Consequently, the strain on the block, due to unchecked vibration, calls for an unusually sturdy construetion. The old-pattern radiator was of the gilled-tube type and contained only 354 contact points, that is, where the tubes were soldered to the top and bottom plates. The new block, however, is built of brass-film waterways and contains no fewer than 30,800 points of contact, each of which is secured with solder.
Although its cooling surface is considerably greater, the new radiator weighs nearly 30 lb. less and is 2 ins, narrower from front to back than the former type. The makers have taken advantage of the narrower block to allow an inch greater clearance for the fan. This 'will prove especially useful to owners who have fitted the new Pierce-Arrow aluminium fan which, when used in conjunction with the tubular radiator, has very little 'working
space. This new type of fan is becoming very popular with users of PierceArrow vehicles, as it has proved more 'satisfactory in use than the old pattern.
An excellent proof of the efficient design and strength of this new cooling core is that dm manufacturers give a written guarantee to every purchaser, covering all ordinary leakage due to wear, for the unusually long period of two years. It is also stated that this block, which is made in England, is considerably lower in price than the old type. Messrs. George Bright can now supply the block for the 5-tonner from stock. That for the 2-ton model is now in production and will be ready shortly. These blocks can be fitted with the usual composition rubber gaskets, but Messrs. Bright are now fitting " Pressphan " joints to their radiators as these swell on contact with water and are said to stand up better to vibration.
An Improved Starting Crank.
AUSEFUL improvement is the new tartine--crank for Pierce-Arrow lorries, which' is being sold in large numbers and is claimed to be proving very satisfactory in operation. It has a long grip-handle, double the length of the old pattern, enabling two hands to be used when swinging the engine--a great advantage in cold weather. Another refinement is that the bracket is now fitted with a split housing, held by four 10 mm. bolts, as shown in the accom panying diagram. This arrangement greatly simplifies dismantling when necessary, as the housing of the old type is solid and has to be forced on to the cross-member of the frame. The shaft is considerably stronger, as it 15 of greater diameter than that of the old pattern. It has also been slightly lengthened.
Another interesting feature is the special type of dog which is supplied to
be fitted to the engine shaft, It is claimed that this enables the two shafts to engage at almost any angle. This is also shown in the illustration. Messrs. George Bright are marketing. this useful fitting at the price of 85s. complete, subject to trade discount.
A convenient grease-cup is fitted for the purpose of lubricating the shaft, a point which is apt to be overlooked when greasing the working parts, of the vehicle. A strong spring, bearing against a set collar, holds the shaft in position when the starting handle is not In use.