[urq] Oil & Crank
fdekat at sentex.net
Thu Aug 19 10:02:14 EDT 2004
TO expand on MArtin's answer..
Most lawn mower types of engines don't have an oil pump, so they depend on
'splash' lubrication to do the job. On an old Briggs & Stratton mower motor
that I once took apart, the cam timing gear had a 'dipper', that specifically
dipped a scoop of oil each revolution of the cam, and flung it around.
-Frank de Kat-
> Message: 1
> Date: Wed, 18 Aug 2004 17:22:56 -0400
> From: "Martin pajak" <martin at quattro.ca>
> Subject: RE: [urq] NAC: Oil level in an oil pan
> Yes, this used to be the case.
> The crank was used to "splash" the bottom of the pistons to lubricate the
> wrist pins.
> In most of the new engines this is not necessary because of the oil
> Also oil in any form (including mist) causes drag on the crank, not large
> but noticable (cause for knife edging of cranks for racing applications
> While back crank touching oil was the "normal" thing.
> Martin Pajak
> 1983 Audi Ur-quattro (305,000 km) for sale : (
> 1985 Audi Ur-quattro (210,000 km) Euro spec. import mit 3B ;o)
> 1971 Porsche 911T (45,000 mi) all original
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