Hi, I have come across a “new” lubrication system for Scotts, complete with the original blueprint drawing. Basically it consists of a Best and Lloyd Mk2 pump either on the crankcase door or on the mag platform. This is set to pump at maximum delivery, and the resultant high volume and high pressure flow goes to an adjustable pressure relief valve, and then to a pair of “HRD pattern” dial-faced oil regulators. (These are the same as those used as chain oilers on Scotts). The oil then goes to each cylinder in the normal way, whilst the large excess bled off by the pressure relief valve goes back to the tank via a return pipe.
This “new” system does away with the Pilgrim pump, and has none of the uncertain variables caused by the gravity ‘head’ of oil reducing as the level of oil in the tank reduces, and less flow in cold weather as the oil thickens. We have a more or less constant high pressure of oil to start with, which is then reduced to suit the low delivery actually required by the engine, AND the flow to each half of the engine is adjustable. A pressure gauge could very easily be installed at the ‘splitter block’ to which the two regulators are mounted.
The date of this Best and Lloyd official blueprint ?
AUGUST 14th 1928 !!! IF ONLY.