oily intake manifold bottom
#1
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oily intake manifold bottom
Hello everyone,
I've been following the forum since 2005, and since then owned two 2.8 A4s and one A6 2.7T (6sp. manual, GIAC, K&N...)
The question I have is about my current A6 2.7. I just replaced the auxiliary water pump, and noticed that the intake bottom is slightly covered in oil. Everything underneath the intake looked OK at a first glance, so I was wondering what are the usual suspects in this case? I'm probably missing something...
Picture1: oily intake bottom
Picture2: lifted intake
Best,
Milo.
I've been following the forum since 2005, and since then owned two 2.8 A4s and one A6 2.7T (6sp. manual, GIAC, K&N...)
The question I have is about my current A6 2.7. I just replaced the auxiliary water pump, and noticed that the intake bottom is slightly covered in oil. Everything underneath the intake looked OK at a first glance, so I was wondering what are the usual suspects in this case? I'm probably missing something...
Picture1: oily intake bottom
Picture2: lifted intake
Best,
Milo.
#2
i have 1986 ford f-150 i noticed the same thing, but mine is carburated. i think it might be a pcv valve sucking in oil?
Hello everyone,
I've been following the forum since 2005, and since then owned two 2.8 A4s and one A6 2.7T (6sp. manual, GIAC, K&N...)
The question I have is about my current A6 2.7. I just replaced the auxiliary water pump, and noticed that the intake bottom is slightly covered in oil. Everything underneath the intake looked OK at a first glance, so I was wondering what are the usual suspects in this case? I'm probably missing something...
Picture1: oily intake bottom
Picture2: lifted intake
Best,
Milo.
I've been following the forum since 2005, and since then owned two 2.8 A4s and one A6 2.7T (6sp. manual, GIAC, K&N...)
The question I have is about my current A6 2.7. I just replaced the auxiliary water pump, and noticed that the intake bottom is slightly covered in oil. Everything underneath the intake looked OK at a first glance, so I was wondering what are the usual suspects in this case? I'm probably missing something...
Picture1: oily intake bottom
Picture2: lifted intake
Best,
Milo.
#3
AudiWorld Super User
The turbo naturally causes oil residue and buildup in the intake. From the look of it, its using the intake temp sensor as a drain, lol. I would replace the o-ring on the temp sensor.
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