Ouch. My limp is wrist...

Umm yes indeedy. High speed plain bearings need good oil and filtration.

 

It's probably more to do with the utterly shit quality of Russian
bearings of the day and the desperate attempts of owners to come up with
some face-saving solution.

All roller bearings benefit from the best oil around, up to a point. A
decent mineral multigrade is all they need. Too good an oil will lead to
the rollers skidding rather than turning.

--
Dave
GS850x2 XS650 SE6a
I demand nothing of you except that you amuse me.

Folding@Home Team UKRM
http://vspx27.stanford.edu/cgi-bin/main.py?qtype=teampage&teamnum=47957

 

Surely you jest.

The Urals also benefit - like pre-70s BMWs - from pressed-up cranks.
Vibration from crank flex was present in the BMWs, and I don't see why it
shouldn't have been present in Urals. In fact, there's probably thousands
of good reasons why Urals should shag up their engines...

This was the reason given for recommending the use of 40-weight. There's a
guy who imports Chang Jiangs, who reckons you should use the same 40-weight
in engine, gearbox and final drive...

 

When I take waste oil to the local recycling place is this what it might
be turned into?

 

Heh.

I always wondered - do they actually re-refine waste oil into nice new
lube, or just sort of sieve it and turn it into central heating oil or
something?

Anyone know for sure?

 

www.dti.gov.uk/sustainability/downloads/oil.pdf (~45KB)

This gives an outline of possible uses and the problems encountered.
As I understand it, waste motor oil is likely to be loaded with toxic
particles scraped from shagged big-end shells (we are talking SOBs here
of course) and it is a growing challenge to manage it safely. It also
mentions the growing proportion of synth oil and additives that makes it
much more difficult and expensive to regenerate the stuff for further
use as a lubricant of more than the most basic quality.

It also mentions that only 50% of oil sold is recoverable - the rest is
lost, probably mostly as puddles underneath old British motorcycles.

 

It's perfectly possible, indeed is done, to recycle used oil. Left to
stand or centrifuged, filtered, new additive package - cheap 20/50 or
10/40.

You can certainly burn it in a waste oil burner, but such devices are
pricey.

Yep.
--
Dave
GS850x2 XS650 SE6a
Every post contains Nutri-Ceramide-R and Pre-Biotics
for your reading pleasure.
Folding@Home Team UKRM
http://vspx27.stanford.edu/cgi-bin/main.py?qtype=teampage&teamnum=47957

 

Very interesting, is that.

Indeed:

"Only about 50% of lubricating oils sold can be collected following use
as it is lost or consumed during applications e.g. part losses occur due
to combustion in engines, drips in service"

 

It also occurs to me that the motor trade might only use a smallish
proportion of all lubricating oil - there is the huge area of industry,
machine tools, shipping, rail etc and I have no idea how much is used in
total.
More Googling needed I think ...

 

This must be where I mention the TI Power Wheel - a powered rear wheel
designed to motorise a bicycle. One of its weird features was that it
could recycle its 2-stroke oil. The exhaust gases passed over the
transmission so that any unburnt oil would lubricate the gears. It then
dripped its way to the bottom where in collected in a little container -
ready to be mixed back into the next lot of fuel.

Strangely, the Power Wheel never got beyond the prototype stage.

 

For which we are all thankful.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Champ

Wasn't it considered for the Basenji at one point?

--
Wicked Uncle Nigel - Podium Placed Ducati Race Engineer

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
SBS#39 OMF#6 Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"
Suzuki TS250 "The Africa Single" Yamaha GTS1000

 

Indeed, a pair was tried on the prototype with some success, so much so
that Spagthorpe decided to press on with all four wheels being Power
Wheels, and steal a march on the competition by introducing the first
British PAWD car.
The only slight drawback to the plan was the tendency for oil splatter
from the front wheels to soak the driver and passenger, which
necessitated them being dressed like WW1 fighter pilots. Spagthorpe
introduced a quick-change goggle apparatus to help in forward
visibility, but it proved to be unreliable, more than one unlucky
customer finding the automatic change arm stuck firmly up one or both
nostrils at speed.

Another flaw in the design was the tendency for the entire front end of
the car to burst into flames when left sitting overnight, the castor oil
of the time having an unfortunate tendency to self-ignite when left for
more than a few hours in the open air.
--
Dave
GS850x2 XS650 SE6a
Every post contains Nutri-Ceramide-R and Pre-Biotics
for your reading pleasure.
Folding@Home Team UKRM
http://vspx27.stanford.edu/cgi-bin/main.py?qtype=teampage&teamnum=47957

 

Somebody has to do it, else all those models will be lost forever, like
cheap bearings in bad oil.
--
Dave
GS850x2 XS650 SE6a
Every post contains Nutri-Ceramide-R and Pre-Biotics
for your reading pleasure.
Folding@Home Team UKRM
http://vspx27.stanford.edu/cgi-bin/main.py?qtype=teampage&teamnum=47957

 

Leave my XS650 out of this please