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snapkrackelpop19 Samba Member
Joined: July 02, 2010 Posts: 79 Location: Shoreline
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Posted: Mon Oct 25, 2010 11:32 pm Post subject: Yellow residue under my oil cap? |
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From what I understand it's water mixing with the oil. I believe the only time water could have gotten in was when I changed out the oil cooler and washed some of the oil off the engine, some may have leaked in. But I've done an oil change since then and the residue still comes back. Does this mean I might have a leak or something? Should I do another oil change? |
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Inane Cathode Samba Member
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Joined: September 11, 2009 Posts: 556 Location: Westminster, CO
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Posted: Mon Oct 25, 2010 11:40 pm Post subject: |
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It's just condensation, it'll show up on the oil cap as thats the highest point on the system and it floats up and collects on the inside of the cap. Just drive it for reasonable periods so it gets hot enough to burn off the water in the oil and you'll be fine. |
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dizi Samba Member
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Joined: October 20, 2010 Posts: 78 Location: Chehalis/centralia, WA, U.S.
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Posted: Mon Oct 25, 2010 11:40 pm Post subject: |
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how much do you drive the car??? I had a similar post to this about water on the oil cap and the replies i was recieving said that it was normal on an engine that isnt been drivin alot. and it could also be due to weather cuz after i found mine i did an oil change and pulled my filler neck and cleaned it took the car out for a cruise and then i was keepin an eye on that and behold 2 days later it had a little bit of water in there but my garage isnt heated and the weather has cooled right on down |
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andk5591 Samba Member
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Joined: August 29, 2005 Posts: 16759 Location: State College, PA
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Posted: Tue Oct 26, 2010 5:46 am Post subject: |
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Some basic chemistry - water is a by-product of an internal combustion engine. Ever see water drops from a car exhaust or that white smoke until they warm up? Its water. You get it in the crancase and if the car isn't run long enough to cook it out, then it condenses, which is usually onto the coolest spot it can find.....the oil cap. Thats one of the reasons you DON'T start a car for a couple minutes every week during off season - you load up the case with water. _________________ D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them... |
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snapkrackelpop19 Samba Member
Joined: July 02, 2010 Posts: 79 Location: Shoreline
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Posted: Tue Oct 26, 2010 8:43 am Post subject: |
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Ohh okay, that makes sense. It's mostly an offroader but sometimes I'll take it for short drives around town, which is probably how the water got there. Thanks ![Smile](images/smiles/icon_smile.gif) |
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69 Jim Samba Member
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Joined: September 27, 2004 Posts: 6264 Location: Chickengeorge's Neighbor
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Posted: Tue Oct 26, 2010 8:49 am Post subject: |
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Is the thermostat and flaps installed? |
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gt1953 Samba Member
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Joined: May 08, 2002 Posts: 13865 Location: White Mountains Arizona
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Posted: Tue Oct 26, 2010 5:11 pm Post subject: |
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Drive that car for about 40 miles at free way speed and it will dissipate it.
This time of year we will see many post with the same issue, white goo under oil filler. _________________ Volkswagen: We tune what we drive.
Numbers Matching VW's are getting harder to find. Source out the most Stock vehicle and keep that way. You will be glad you did.
72 type 1
72 Squareback
({59 Euro bug, 62, 63, 67, 68, 69, 73 type ones 68 & 69 type two, 68 Ghia all sold}) |
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lupin..the..3rd Samba Member
Joined: December 28, 2009 Posts: 1800
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Posted: Tue Oct 26, 2010 5:17 pm Post subject: |
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69 Jim wrote: |
Is the thermostat and flaps installed? |
x2, this is a great question. Without the thermostat and flaps in place, the engine simply will never reach operating temperature in the winter time, no matter how long you drive it. |
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