“Yoof is wasted on the young!” Too darned right!!! I’ve so many jobs, schemes, plans and ideas lined up that I’ll have to live to about 179 to get it all done! I therefore offer this idea for consideration as it’ll be a while before I get around to it:
Many modern 2-stroke bikes use an oil pump that works just like a diesel injector pump. For those not familiar with these things they use a constant stroke “piston” that has an angled slot in the piston wall. To vary the quantity of oil, (or diesel), that is pumped the piston is externally rotated so that the angled slot meets a hole, (“spill port”), in the “cylinder” wall, thus pressure is released and pumping ceases for the remainder of the stroke. This “spare” oil is not wasted; the spill port is connected to the delivery side of the pump.
With the piston rotation connected to the throttle then this is surely just what the Scott needs. At light loads just a smidge to keep things wet and if doing a, “Lets see if we can get it airborne again Mr. Moss.”, some rather larger gulps. If Lofty had had something like this he’d not have filled so many Swiss valleys with smoke! Mark you I don’t recall that his bike smoked all that much but then I never saw him coasting much either!
I’ve cannibalised a couple of these pumps off Jap machinery to play with, they are of similar design and size, (2″ x 2″ x ½” thick approx.). They are both flange mounted and the drive is 2 flats on a round shaft so picking up a drive should be no problem.
Could one be hidden inside a crank case? I dunno! Could one be faked up to look like a pilgrim? I dunno that either! What I can guess is that Pilgrims are going to be increasingly more difficult and expensive to get serviced and the cannibalised pumps are cheap! cheap! In addition they have had the R&D done, they are proven units on a wide range of high revving machines and I rather think they would do very well on a Scott too. If a mounting for one of these pumps, designed on the basis of “first do no harm”, can be made so that reversion to the Pilgrim can be easily done then the remaining life of the Pilgrim will be husbanded. The “Inspectors’ Meticulous” can show pure and unsullied machines at shows with a minimum of fiddling. What is more the Scott will get a reliable oil supply that has the merit of fit & forget, on todays roads looking to see if the Pilgrim is working is likely to get you dead!
Naturally if you prefer the colour blue…
.
