Recent Topics
Crazy phone deal at Best Buy
by AZjeff
11/29/15 07:39 PM
Who else lets them buy what they want?
by Chris142
11/29/15 07:16 PM
Noise cancelling headphone suggestions?
by Shaman
11/29/15 07:03 PM
Sony Blu-ray BDPS3500
by Hokiefyd
11/29/15 06:50 PM
Napa 5w20 5,000 miles, 2007 Ford Expedition 5.4L
by Pmgo4th
11/29/15 06:34 PM
simple question
by Jake777
11/29/15 05:34 PM
ILSAC thin oil & fuel economy -- half truths
by Gokhan
11/29/15 04:47 PM
What's the point of using name brand oil in a dd
by ram_man
11/29/15 03:48 PM
crazy ford truck stuff today....
by Tuffy1760
11/29/15 03:34 PM
Throttle Body Advice
by coopns
11/29/15 03:31 PM
Fleet and farm store shoppers?
by car51
11/29/15 03:18 PM
Saturn rust question
by supton
11/29/15 03:06 PM
Newest Members
umbee, yooks, Electronics4life, Kit_Sodergren, Tim_A
56170 Registered Users
Who's Online
119 registered (74DartSport, 2015_PSD, ag_ghost, 05LGTLtd, 2cool, 15 invisible), 1536 Guests and 122 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
56170 Members
66 Forums
241245 Topics
3908472 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#2975739 - 04/17/13 03:10 PM UOA via fluid extractor
Stewart Fan Offline

Registered: 08/20/03
Posts: 995
Loc: Everett,Wa.
I've got a 2012 300hp Yamaha four stroke on my boat. I'd like to start a series of UOAs. There isn't a drain plug so oil changes must be done with a fluid extractor.

The Moeller extractor I've been using for 7 years works great. The issue is that its impossible to completly empty the extractor's reservoir of oil.

I'm guessing there is 2-3 oz of oil remaining in the reservoir after the oil is emptied into a container for recycle.

How badly will the remaining oil in the reservoir skew the results of a UOA?

The oil in the reservoir could be from a lawn mower,generator,etc.

#2975740 - 04/17/13 03:17 PM Re: UOA via fluid extractor [Re: Stewart Fan]
SteveSRT8 Offline

Registered: 10/10/08
Posts: 16957
Loc: Sunny Florida
IMO at the levels of resolution, parts per MILLION, any contamination could yield pretty skewed results.
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

#2975748 - 04/17/13 03:28 PM Re: UOA via fluid extractor [Re: Stewart Fan]
HTSS_TR Offline

Registered: 04/17/06
Posts: 16487
Loc: Lake Forest, CA
Make your own cheap pump using a shampoo pump with 3-4 feet 5/16" OD hose from hardware store(about $1). It may take 30-40 pumps to get 2-3 oz from the sump into a small container for UOA, but it works on my E430.
'94 Lexus LS400
'00 MB E430
'04 Honda S2000
'06 Volvo V70
"Throwing food away is like stealing it from the poor and hungry" Pope Francis

#2975750 - 04/17/13 03:31 PM Re: UOA via fluid extractor [Re: Stewart Fan]
cat843 Offline

Registered: 04/09/13
Posts: 571
Loc: East Coast, USA
You need an oil sample vacuum pump. You use new (inexpensive) tubing for each UOA and the oil does not touch the pump, only the collection container which you mail. And you should pump a little in to the container, dump it and then take the sample. The sample hose could have picked up some crud while being inserted, thus the reason to pump a little and dump it.