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From: Noddy on 9 Jun 2010 19:44

"Nate Nagel" <njnagel(a)roosters.net> wrote in message
news:hup4rl0m42(a)news7.newsguy.com...

> Not today, but once upon a time, at least "partial loss" systems were in
> regular production. e.g.
>
> http://www.forengines.com/demoa-1.jpg
>
> http://www.forengines.com/demoa-2.jpg

Assuming, for the sake of the argument, that old engines that ran exposed
rocker gear were indeed actually lubricated from the engine's own on board
supply of oil, and I'd doubt it many of them (if any) actually were.

Some engines, like very early inline aircraft engines that ran exposed
rocker gear for example, carried their own sump oil for lubricating the
engine internals, but the rocker gear was lubricated by hand from a hand
help oil can during the "pre start" maintenance. The main reason for this is
because the lubrication system was a "splash" system that didn't run an oil
pump, and without a pump there was no way to get engine oil up to the top of
the engine. It would have also been a bit self defeating, as without a means
of catching the run off once the oil was pumped up to the top of the engine,
it'd run dry pretty quickly which would severely limit it's endurance.

Some early car engines I've seen with exposed rocker gear have worked on the
same principal. They could get away with it in those days as the rpm's and
loads were pretty minor, and the clearances so large that a few drops of oil
from an oil can was all they needed to keep them happy for a while.

--
Regards,
Noddy.



From: Fraser Johnston on 10 Jun 2010 03:21

"Noddy" <me(a)home.com> wrote in message
news:4c0f1ca1$0$56574$c30e37c6(a)exi-reader.telstra.net...
>
> "Steve W." <csr684(a)NOTyahoo.com> wrote in message
> news:humvuv$dvt$1(a)speranza.aioe.org...
>
>> Harley Davidson still uses this system...!
>
> As do/did most things made in England :)

I had a jag that didn't leak oil. I still think I should of sold it to
Ripleys.

Fraser


From: N8N on 10 Jun 2010 09:33
On Jun 9, 6:53 pm, klu...(a)panix.com (Scott Dorsey) wrote:
> Nate Nagel  <njna...(a)roosters.net> wrote:
>
>
>
> >Not today, but once upon a time, at least "partial loss" systems were in
> >regular production.  e.g.
>
> >http://www.forengines.com/demoa-1.jpg
>
> >http://www.forengines.com/demoa-2.jpg
>
> I believe the Wright Brothers' first engine was like this.  It was not
> designed to run for long periods anyway.

ISTR hearing anecdotes about the early days of aviation, where pilots
would have to take into consideration the effects on the human body of
a partial-loss lubrication system combined with the use of castor bean
oil as the base for the engine lubricant... (think about it.)

nate
From: Steve W. on 11 Jun 2010 15:26
Noddy wrote:
> "Nate Nagel" <njnagel(a)roosters.net> wrote in message
> news:hup4rl0m42(a)news7.newsguy.com...
>
>> Not today, but once upon a time, at least "partial loss" systems were in
>> regular production. e.g.
>>
>> http://www.forengines.com/demoa-1.jpg
>>
>> http://www.forengines.com/demoa-2.jpg
>
> Assuming, for the sake of the argument, that old engines that ran exposed
> rocker gear were indeed actually lubricated from the engine's own on board
> supply of oil, and I'd doubt it many of them (if any) actually were.
>
> Some engines, like very early inline aircraft engines that ran exposed
> rocker gear for example, carried their own sump oil for lubricating the
> engine internals, but the rocker gear was lubricated by hand from a hand
> help oil can during the "pre start" maintenance. The main reason for this is
> because the lubrication system was a "splash" system that didn't run an oil
> pump, and without a pump there was no way to get engine oil up to the top of
> the engine. It would have also been a bit self defeating, as without a means
> of catching the run off once the oil was pumped up to the top of the engine,
> it'd run dry pretty quickly which would severely limit it's endurance.
>
> Some early car engines I've seen with exposed rocker gear have worked on the
> same principal. They could get away with it in those days as the rpm's and
> loads were pretty minor, and the clearances so large that a few drops of oil
> from an oil can was all they needed to keep them happy for a while.
>
> --
> Regards,
> Noddy.
>
>
>

Most early tractors and rail equipment were lubed using an oil can. The
Farmall regular,and F-20 I have both have oil cups that you have to put
oil in after every few hours of use. Same with most of my old engines.
Oil drip lubricators and oil wicks are very common on them.

--
Steve W.
(\___/)
(='.'=)
(")_(")
From: Steve W. on 11 Jun 2010 15:26
Fraser Johnston wrote:
> "Noddy" <me(a)home.com> wrote in message
> news:4c0f1ca1$0$56574$c30e37c6(a)exi-reader.telstra.net...
>> "Steve W." <csr684(a)NOTyahoo.com> wrote in message
>> news:humvuv$dvt$1(a)speranza.aioe.org...
>>
>>> Harley Davidson still uses this system...!
>> As do/did most things made in England :)
>
> I had a jag that didn't leak oil. I still think I should of sold it to
> Ripleys.
>
> Fraser
>
>

Must have been empty....

--
Steve W.
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