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1986 928: Oil in engine valley?
I noticed the valley of the engine was full of oil, puddling across the bottom under the intake manifold.
Throttle body was covered in oil. Thoughts? |
The usual primary suspect is the seal on the bottom of the filler neck
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WYAIT rabbit hole alert...😉
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Big time deep dive down the hole.
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Originally Posted by FredR
(Post 15823978)
The usual primary suspect is the seal on the bottom of the filler neck
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Originally Posted by FredR
(Post 15823978)
The usual primary suspect is the seal on the bottom of the filler neck
Will look into it. |
Please post a picture of what your seeing
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Speaking of the valley, anyone know where to purchase the plugs that go in the holes in the valley, specifically a center one if it's different. They're not by chance the same size and thread as the cam tower plugs are they?
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Originally Posted by Mrmerlin
(Post 15825147)
Please post a picture of what your seeing
https://cimg8.ibsrv.net/gimg/rennlis...45f8285a2c.jpg https://cimg4.ibsrv.net/gimg/rennlis...9350ab916a.jpg https://cimg0.ibsrv.net/gimg/rennlis...7563e8ed46.jpg |
I found this thread, which seems to have more information.
https://rennlist.com/forums/928-foru...-manifold.html This post:
Originally Posted by Landseer
(Post 9488060)
The two crankcase breather hoses on the early 32V cars that run to the passenger cam cover get sticky soft, break down and get holes in them. Check at the base of the oil filler area. Will spray engine compartment with oil and fill below the throttle body and the cavities closer to the water pump / front of engine. I've got an 85 and an 86 that both had this happen. Could be something else, but that's what fixed mine.
So we have oil filler tube or crankcase breather hoses. Now the question is how much of a PITA are these items to get to? I've been under the intake runners on a 4.5 car, but not a 5.0. |
when i did the intake refresh on that engine all of the hoses were replaced maybe 4 years ago
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Originally Posted by Mrmerlin
(Post 15829265)
when i did the intake refresh on that engine all of the hoses were replaced maybe 4 years ago
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I found a lot of oil in the valley when I did the timing belt on my '82. It turned out that the bolts holding the filler neck to the block had loosened over time and weren't even hand tight. I tightened them back down and that solved it.
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Originally Posted by Fox_
(Post 15829412)
How would you suggest to proceed?
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check the oil fill bolts first
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