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#1
11-13-2006, 10:26 AM
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why is this happening, moisture in breathers?
When I took off my valve covers yesterday to check the rockers, i noticed the milky oil in the bottom of the breathers. The motor only has about 500 miles on it. why is this happening? I did put the car away on a cold day do you think it was not warmed up enough?
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 1970 gto (4spd) 462 500 hp [email protected] / 1.843 60'/ 3980 lbs 1964 corvette roadster 1968 corvette roadster 1962 corvette "equal rights, not equal things" if you want to know the future, read "atlas shrugged" I dont race a 4spd because it is easy, I race a 4spd because it is hard. 
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#2
11-13-2006, 10:36 AM
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Condensation. Your last sentence sums it up.
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Jack Ferris RestoRacing LLC www.restoracing.com Sandy, UT --------------------------------------------------- |
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#3
11-13-2006, 10:42 AM
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are you running Valvaline oil?
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77 Trans Am All Steel, on 10" tires 8.30 @ 165 mph 3,380 LBS Mat it! Spray it! Chute it! Just another 8 Second Pass! |
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#4
11-13-2006, 11:01 AM
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shell rotella 15w-40. This is not a sign of a failed head gasket?
__________________
1970 gto (4spd) 462 500 hp [email protected] / 1.843 60'/ 3980 lbs 1964 corvette roadster 1968 corvette roadster 1962 corvette "equal rights, not equal things" if you want to know the future, read "atlas shrugged" I dont race a 4spd because it is easy, I race a 4spd because it is hard.
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#5
11-13-2006, 11:09 AM
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my motor did that when i did not have the pcv system set-up right.....
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1981 Trans Am project -YJ 400 stroked to 488 CID-74cc Eheads-10.95:1-Northwind Intake-Holley Terminator-TH400-3:55 Moser rear-Dougs Headers.... |
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#6
11-13-2006, 11:16 AM
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Mine does the same thing,even collects in the rubber tube,i clean it all out a couple times a year and far as i know,no engine problems just condensation.
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#7
11-13-2006, 11:21 AM
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This happens with short run, short trip cars. You have to get it good and hot for a while to burn it off.
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#8
11-13-2006, 11:57 AM
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In Arizona we don't have a lot of moisture in the air so condensation is not normally a problem. When my breathers looked like that I had a blown head gasket. It could be just condensation but it could be a bad head gasket too.
Tim C
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Tim Corcoran |
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#9
11-13-2006, 12:00 PM
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Agree with the burn off of the moisture and also that you need a proper PCV system as the corrosive gases are really bad on the lower engine without a good one working. Engine live went up tremendously one people figured out that they needed to expel the corrosive gases in the crankcase. The road draft tube was the first step in that direction. PCV is a much better step.
Warm up the engine properly for a while and then look for condensation in the covers. Tom V. The man is from Minnesota so I would assume the cold weather is contributing.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#10
11-13-2006, 12:50 PM
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"The man is from Minnesota so I would assume the cold weather is contributing"
i even get that all the time on my race car when i open up the valve covers out here in California ! nothing to worry about .
__________________
 someone who thinks logically is a nice contrast to the real world.http://www.youtube.com/watch?v=3FfKVVZW1-Y |
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#11
11-13-2006, 12:56 PM
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What would be the best way to run a PCV?
__________________
'79 T/A 6.6 4-sp, 3.23 , 463" E-heads, 252/262 hyd roller, TII, Holley 830, 8.384 @ 93.86 - 1/8, 12.5 @ 116 - 1/4, 2.035 60', 3800 lbs. w/o driver |
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#12
11-13-2006, 01:34 PM
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Like i said mine has done it for a while,seemed worse after i put the evac system on ,itsoff the collecters .And it isnt run very long compared to a street car.
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#13
11-13-2006, 01:41 PM
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Quote:
billet covers are a little better for not having this prob,i wouldnt even worry about it |
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#14
11-13-2006, 01:43 PM
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condensation,chrome valve covers are more prone to causing this,and if you
park the car outside in the weather,instead of a garage,billet valve covers dont do this as bad, |
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#15
11-13-2006, 01:58 PM
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Quote:
Oddly enough many people remove the factory PCV system thinking its a "smog" device. It is, but its also an anti sludge device. It only has positives and no negatives.
__________________
  My Daddy bought me a car but all I got was this old Pontiac.
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#16
11-13-2006, 02:28 PM
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Use the valley pan, into the carb base?
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'79 T/A 6.6 4-sp, 3.23 , 463" E-heads, 252/262 hyd roller, TII, Holley 830, 8.384 @ 93.86 - 1/8, 12.5 @ 116 - 1/4, 2.035 60', 3800 lbs. w/o driver |
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#17
11-09-2009, 10:14 PM
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Hmmm, older post, but after running my car this weekend, pulled the valve covers just to inspect the rockers, and noticed the oil up top was a little milky looking. Turned the valve covers over, and they had a layer of what resembled white lithium grease. Drained the oil expecting to find water in it, but no water. Moisture is all up top under the valve covers and in the breathers. Ran this same motor back in june, without this problem. Since then, I've only had the intake manifold off. I am using Valvoline oil, and I don't use a PCV valve. What could be causing this now?
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#18
11-10-2009, 12:35 AM
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reread all the above posts
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