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> Found my oil leak, What the hell is this ??
drdave427
post Apr 20 2012, 05:33 PM
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I pulled off the drivers side valve cover expecting to find a bad gasket. In an earlier post - "oil where it shouldn't be" - I posted some pics of an above the engine seal line oil leak that occurred after some spirited driving an a HUGE sweeping right turn. I got suggestions that I probably had blown a valve cover gasket - well that was not the problem but it did set up a new question. What is the little tube that goes thru the head into the valve cover ?? I had not seen this tube topside as it is really tight against the intake manifold - and I had the carbs off when I first bought the car. Anyway this tube had nothing connected to it so I am sure its where the oil came from - it is right in the middle of where the oil showed on the tin. Is there 2 crankcase vents on the drivers side ??
My vent tube on that side is connected a little above this newly found opening.


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drdave427
post Apr 20 2012, 05:39 PM
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QUOTE(drdave427 @ Apr 20 2012, 07:33 PM) *

I pulled off the drivers side valve cover expecting to find a bad gasket. In an earlier post - "oil where it shouldn't be" - I posted some pics of an above the engine seal line oil leak that occurred after some spirited driving an a HUGE sweeping right turn. I got suggestions that I probably had blown a valve cover gasket - well that was not the problem but it did set up a new question. What is the little tube that goes thru the head into the valve cover ?? I had not seen this tube topside as it is really tight against the intake manifold - and I had the carbs off when I first bought the car. Anyway this tube had nothing connected to it so I am sure its where the oil came from - it is right in the middle of where the oil showed on the tin. Is there 2 crankcase vents on the drivers side ??
My vent tube on that side is connected a little above this newly found opening.

the new open tube is just below the metal line /rubber coupler I have that is going to what I thought was the crankcase vent. The tube isn't visible in the shot -- it is right against the intake manifold. This picture I took right after the oil leak happened.


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Dave_Darling
post Apr 20 2012, 05:43 PM
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That is the vent tube that we've been talking about.

It is part of the positive crankcase ventilation system. In a stock car, that would get joined together at the "flashback valve" (a screen-style spark arrestor) and connected to the air cleaner.

--DD
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drdave427
post Apr 20 2012, 05:52 PM
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QUOTE(Dave_Darling @ Apr 20 2012, 07:43 PM) *

That is the vent tube that we've been talking about.

It is part of the positive crankcase ventilation system. In a stock car, that would get joined together at the "flashback valve" (a screen-style spark arrestor) and connected to the air cleaner.

--DD

Then what do I have the hose connected to above it ??
Thanks
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Cap'n Krusty
post Apr 20 2012, 06:17 PM
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Sure looks like your vent line is connected to the port in the shroud for the evap hose.

The Cap'n
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drdave427
post Apr 20 2012, 06:20 PM
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QUOTE(Cap'n Krusty @ Apr 20 2012, 08:17 PM) *

Sure looks like your vent line is connected to the port in the shroud for the evap hose.

The Cap'n

Can I leave it open then ?? If so -- I'll move my vent to the lower one and leave that port open --
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brant
post Apr 20 2012, 08:29 PM
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yes you can do that
or you can cap the tin work with a plug to stop the small air leak
its not too important either way

but you need to put a hose on the head vent
the head vent is blowing oil out with positive crank case pressure
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drdave427
post Apr 20 2012, 09:07 PM
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QUOTE(brant @ Apr 20 2012, 10:29 PM) *

yes you can do that
or you can cap the tin work with a plug to stop the small air leak
its not too important either way

but you need to put a hose on the head vent
the head vent is blowing oil out with positive crank case pressure

Fixed !! Thanks everyone -- I can't believe I was pumping air into the engine. That's not good unless you are turboed-- it was connected that way when I got the car. Actually both sides were connected together and the oil fill breather tube was just laying free. I T'd the 2lines and ran them to the air cleaner and installed a little filter at the oil fill and thought I was doing good ! It is all sorted out now and the valves are adjusted -- they were all a little tight ...
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euro911
post Apr 21 2012, 03:15 AM
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Glad to hear you found and fixed the problem (IMG:style_emoticons/default/thumb3d.gif)

Now you just have to get the oil smell out of the engine compartment if you plan to use the heater (IMG:style_emoticons/default/sad.gif)
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