Golden Helmet
Full Access Member
Heya fellas. I've got an oily patch on my passenger-side inner fender that's been gradually getting worse. There's oil up on the AC drier, all along the underside of the heater hose that comes out of the block, and sprayed out on the fender insulation. There are no oil spots under the truck; the oil is leaking up instead of down, that's what has me confused
The valve covers are definitely leaky, but would a leaky valve cover also spray oil out like this? That's why I'm wondering if maybe I have an external head gasket leak, and I was hoping you guys might be able to weigh in on that. The driver side valve cover is leaky too, but that side is MUCH cleaner than the passenger side.
Just as some background information on my engine, it's got 320k miles and all the seals are original. I change the oil every 3k miles, and at 3k it's no more than ~1-1.5qts low on oil. I had a compression test done @ 300k and all 8 cylinders were above 400psi. If I run the engine with the oil fill cap off, there's no blow-by at all. No oil in the coolant or vice versa, no bubbles in the coolant, no white smoke. It seems to be a happy engine, just a little leaky.
Let me know what you guys think, I appreciate your guys' input.
The valve covers are definitely leaky, but would a leaky valve cover also spray oil out like this? That's why I'm wondering if maybe I have an external head gasket leak, and I was hoping you guys might be able to weigh in on that. The driver side valve cover is leaky too, but that side is MUCH cleaner than the passenger side.
Just as some background information on my engine, it's got 320k miles and all the seals are original. I change the oil every 3k miles, and at 3k it's no more than ~1-1.5qts low on oil. I had a compression test done @ 300k and all 8 cylinders were above 400psi. If I run the engine with the oil fill cap off, there's no blow-by at all. No oil in the coolant or vice versa, no bubbles in the coolant, no white smoke. It seems to be a happy engine, just a little leaky.
Let me know what you guys think, I appreciate your guys' input.
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