I've got to admit that idea has never been put forth, but I'm playing with a
helicopter and increasing weight is looked at very closely. My accumulator
that I built weighs 2.9# but the electric fuel pumps that I have been
reviewing weigh less than 2#. I think that the smog pump is much heavier.
BTW I fly in the desert and corrosion is pretty much a non-issue. I had a
raw 4130 helicopter frame setting outside for about 10yrs and you could wipe
off the rust with a paper towel.
I would really like to have a system mounted on the helicopter that would
pre-oil just before start up. I some time have periods on the airshow
circuit where the engine does not get started for several weeks and I would
like to pre-oil prior to starting and be able to do that from the cockpit or
possibly from a manual pump providing that I can keep the weight down.
"Capt. Geoffrey Thorpe" The Sea Hawk at wow way d0t com wrote in message
...
"Stuart & Kathryn Fields" wrote in message
...
I'm thinking about using an electric diesel fuel pump to pressurize my
0320 with engine oil to pre-lube before starting. Have any of you tried
that? The accumulator method is heavier than I want to use.

I'm thinking (never a good thing, eh?) that your objective is to prolong
the life of the engine?

Rather than a pre-oiler, what about grabbing the smog pump off that '78
Chevy you have up on blocks and putting it on your engine with the pump
outlet plumbed into the crankcase some distance away from the existing
breather? (Inlet goes to the clean air side of the air cleaner Note: IIRC
some air pumps have an inlet you can attach a hose to, some don't.)

Keeping the crankcase clean and dry would likely do more good than
pre-oiling...

--
Geoff
The Sea Hawk at Wow Way d0t Com
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