The submarines I was on all used synthetic oil, and had centrifugal
bypass oil purifiers. They never changed the oil. In fact, the reason
you use a bypass filter is so you don't have to change the oil, and
because the bypass filter also removes water.

Also on the submarine, the sailors discovered that toilet paper rolls
make very effective filters. If you exhale your reefer hit through the
edge of the roll, it filters out all the smoke, making it undetectable.

Street price for new Frantz filters looks like around $135 (on Ebay).
You can buy them new from the manufacturer:
http://www.wefilterit.com/

Dan Thomas wrote:
"Gilan" wrote in message link.net...

I used to install them on engines. I would love to know where you found
them and if you can get me any??? The Frantz is a great bypass oil cleaner.
Most people don't understand how a bypass oil cleaner works. Please let me
know about getting more Frantz cleaners
--
Have a good day and stay out of the trees!
See ya on Sport Aircraft group
http://groups.yahoo.com/group/Sport_Aircraft/

Flying Gators annual Fly-in
http://www.mitchellwing.com/flying_g...annual_fly.htm

Private Pilot in 10 days
http://www.perfectplanes.com


I had one on a Chev S10, and took it off when I sold the truck.
Still have it in my junk somewhere. The oil in that truck was always
clean; would darken a bit from heat, but no carbon in it.
The filter has a tiny orifice feeding it so that minimal oil
pressure is lost in bypassing the engine's oil system. It would NOT
work as an inline full-flow oil filter because of that restriction,
and because the toilet paper presents so much restriction by itself,
especially as it accumulates junk.
It's hard to find toilet paper that will fit it anymore. The
retail types of crapwrap are loosely wound and are on larger ID rolls
than formerly. They won't fit the canister and centre post properly.
Service-grade rolls are necessary, and they are available only in
cases of 48. Lots of filters, but at the same time you can save cash
on the stuff since a roll will last many times longer in the biffy and
costs only marginally more than the retail stuff. You want 500-sheet
singly-ply, and it has to be good quality paper.
I'd put the filter in my Jodel but I fly it so infrequently that
the oil doesn't have a chance to dirty up much between changes, and
the weight of the filter cuts into an already-small useful load.
The filters are still manufactured, I think. Maybe a Google search
might turn something up.

Dan

--
John Kimmel



In the desert
I saw a creature, naked, bestial,
Who, squatting upon the ground,
Held his heart in his hands,
And ate of it.
I said, "Is it good, friend?"
"It is bitter -- bitter", he answered,
"But I like it
Because it is bitter,
And because it is my heart."