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Jonathan


I am a marvelous housekeeper. Every time I leave a man I keep his house. -Zsa Zsa

Location: Near Albany NY
Joined: Sep 12, 2004
Points: 320

Crankcase condensation
Original Message   Jan 23, 2005 3:03 pm
I noticed today when checking the oil on my 11.5 Tecumseh that there was oil/water "cream" on the upper half of the dipstick. I assume this is a result of moisture in the crank case which is forming perhaps from my keeping the blower in a relatively warm place (about 35-40 F) after using it in temps ranging from 32 F-0 F. I would often see this in the breather/filler tube of my Ford 8N tractor which I used the past 11 years for plowing. The Ford was kept ouside in a shed. Is this something I should be concerned about? I have about 8 1/2 hours on the engine. Changed the oil from the 5W-30 to synthetic 0W-30 at the 2 hour mark.

2004 Ariens 11528LE, Troybilt Horse "Big Red" Tiller (original), Troybilt Tuffy Tiller (original), Sears LT1000 mower, Lawn Boy 7073 21" mower, Stihl FS55 RC trimmer, Poulan Countervibe 3400 chainsaw
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Blue9R


Location: Illinois
Joined: Dec 20, 2003
Points: 224

Re: Crankcase condensation
Reply #5   Jan 23, 2005 7:28 pm
Yes, the "cream" colored sludge that accumulates on a dipstick is moisture coming out of the oil in the crankcase. 

The dipstick may also function as an air vent & this is where minor amounts of moisture, driven out of the oil, as it heats up, meets the cold air & tends to collect.

Air cooled 4 cycle engines in snowblowers tend to contaminate the oil with moisture - lawnmowers contaminate with dust & debris.

Synthetic oils tend to tolerate this moisture better than older solvent refined dinos, either way, this is a good reason for an end -of -season oil change.

MountainMan


Overpowered is Usually Adequate


Location: Connecticut
Joined: Feb 19, 2003
Points: 1564

Re: Crankcase condensation
Reply #6   Jan 23, 2005 7:29 pm
Same here. Thats why its important to heat the engine up real good, to evaporate water that colects in the CC.

Ariens 1128PRO- Honda Generator_ Husky 480-257 Jonsered 2050Turbo- Shindiawa T2500 SCAG Mower -little wonder blower-Sears track blower-Coleman Generator- Bombadier ATV-Stihl HS-45 Etc-Etc-Etc
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