Oil leaking from intake manifold bolts

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  #1  
Old 03-28-2011, 11:35 AM
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Default Oil leaking from intake manifold bolts

Just the title says. Its just a very small amount, just enough to wet a paper towel. Its coming from around the intake manifold bolt by cylinder two. I've never seen this before...water yes, but oil no. There doesn't seem to be any water in the oil or vice versa. What should I keep an eye on at this point? SBC stroker less than 600 miles on the motor.
 
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Old 03-28-2011, 12:25 PM
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Some of the intake bolts extend into the lifter valley, and oil is pushing up the threads. The bolt threads should have had some RTV put on to prevent that. If it bothers you, remove the bolt, clean the threads well, coat the threads with RTV, and button it back down.
 
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Old 03-28-2011, 02:09 PM
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I didn't think they extended down that far...but it makes sense as that is the bolt I had to use for the engine hoist...
 
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Old 03-28-2011, 02:25 PM
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I don't mean that the hole extends way far down, but that the bolt and threads are exposed on the back side of the head.
 
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Old 03-28-2011, 05:04 PM
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What are the chances that its a valve cover leak? Ive seen valve cove leaks show up in the same place.....
 
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Old 03-29-2011, 08:25 AM
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The chances are small...but possible. Since my motocross days, I'm very sensitive to tightening, or overtightening bolts since most mx stuff is cast aluminum. Anyways, I've had to go back and re-torque nearly every bolt on the car, so I'll double check everthing tonight.
 
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Old 03-29-2011, 11:18 AM
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I too doubt it would be from the valve cover gasket. Oil could drip down the head, but then it would have to jump up a good quarter inch at the raised lip of the intake manifold. Before it did that, the oil would run along that trough between the intake and head, then drip off the ends. Oil oozing up around the intake bolts isn't that uncommon, especially on uncoated threads.
 
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Old 03-29-2011, 09:10 PM
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Yo Camaro, why you gotta hate up on me?

(sorry, I cant even sound ghetto when I try....) 8*)
 
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Old 03-29-2011, 10:37 PM
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Heh...heh...heh. You'd know it if I was a hatin' on ya, yo.
 
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