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Nwayne
Joined: 22 Mar 2010
Posts: 30
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 Posted: Thu Jul 01, 2010 12:41 am Post subject: Could this be condensation? |
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I pulled the valve cover off the passenger side head and noticed creamy white substance on the #2 rocker arms and guide plates. No milky oil in the bottom of the head, in the valve cover, or on any of the other rocker arms, just on the #2 cylinder. There's no oil in the water, or water in the oil when I drained it. The radiator doesn't appear to be loosing coolant. After draining the oil and refilling it, I started the car and ran if for about 20 minuets and shut it down, waited for it to cool and pulled the valve cover to see if any traces of water showed up, nothing.
Could E85 be causing this because it runs so cool? The engine takes forever to reach 200 and then drops pretty quickly to 170 once the thermostat opens.
Should I do a leak down and pressure test? I pulled the plugs on a couple of cylinders and they look good, almost too clean.
Also, I recently had some problems with a race pump fuel pump going bad and leaking fuel back into the block. Could this be the cause? I hope there's no damage done from the E85 mixing in the oil. Doesn't appear to be a ton of it in the oil but i'm still a little worried. The oil smelled like crap when I drained it.
thanks |
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ron
Joined: 27 Feb 2009
Posts: 16
Location: NY
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| Posted: Thu Jul 01, 2010 6:20 am Post subject: |
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Nwayne Just condensation, happens with gas too. nothing to worry about.
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Nwayne
Joined: 22 Mar 2010
Posts: 30
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| Posted: Thu Jul 01, 2010 8:42 am Post subject: |
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| I hope not. thanks |
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hotrod
Joined: 19 Apr 2005
Posts: 872
Location: Colorado
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| Posted: Thu Jul 01, 2010 11:18 am Post subject: |
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| Quote: | The engine takes forever to reach 200 and then drops pretty quickly to 170 once the thermostat opens.
Should I do a leak down and pressure test? |
No you should probably go to a warmer thermostat. I went from a 160 degree thermostat on gasoline (stock 172 deg F), to a 190 degree thermostat on E85 so the car would warm up properly in the winter.
With the colder stat, I was seeing engine temps of 185 deg after a 17 mile highway drive in winter time --- it would never get hot enough to cook condensation out of the oil if the temp was below freezing.
I had to go to the 160 degree, on gasoline to prevent detonation even on 100 octane Sunoco GT100 racing fuel.
On E85 with the 190 deg F thermostat, the car would sit in traffic on a 95 deg day at coolant temp of 214 deg F, never over heated even in high 90's weather. With the 190 stat, it would quickly drop to an engine temp of 195-205 if I was moving even in hot weather.
Larry |
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