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Thread: [IAC] oil samples
Message: Re: [IAC] oil samples
Follow-Up To: ACRO Email list (for List Members only)
From: Gil Tellier <giltel at earthlink.net>
Date: Thu, 29 Oct 1998 07:13:42 UTC
I get 8 hours to a quart of straight 50 weight Aeroshell oil in a S-1S with 270 hours since new on a stock 180 hp Lyc with Air Wolf filter, B&C vacuum pad adapter return, no oil screen and a thermostatic valve. Of the 8 hours, about 5 hours are Intermediate akro with lots of snaps. Upright to inverted results in only a slight and momentary drop in oil pressure that normally runs between 75 and 80 psig via EI digital gage. Oil temp runs nominally about 180F with cyl temp of about 350-375F. Oil temp on the hottest day at Santa Paula, CA this summer reached 208F after 45 minutes of continuous akro. Your oil consumption sounds excessive and is certainly more than I observed with my S Decathlon over 8 years of Sportsman akro and 1100 hours with the same model engine as above, except for the filter and vac pad adapter. The adapter significantly reduced oil pressure drop in rolls. I use AOA for oil samples via Aircraft Spruce. Not scientific data but hope it helps. Gil Tellier, IAC Ch 49 charles chadwick wrote: > I sent out some old oil sample jars from Cleveland Technical Center in > Ohio. They were returned "address unknown". Does anyone know if they are > still in business or the address of another company that does oil analysis? > > I have an S2A and it seems to push quite a bit of oil out the breather when > I'm doing any kind of inverted work. I'd guess a half pint to a pint in a > half hour flight. On occassion the breather will get so hot from the oil > you will burn your arm on the pipe in the cockpit. Any comments?
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