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Old 03-16-2016, 06:18 PM
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Join Date: Oct 2007
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Quote:
Originally Posted by WarTowels View Post
Ordered all the parts in order to replace the grommet. Also ordered a new OE oil pan. I found that my current pan, the P/O must have hit something and had the pan repaired. Looks like there was some braising or something done to it, but it's seeping oil.

Going top to bottom and cleaning up all the oil I can find... should take many days to achieve.

I have some questions for you kind folks:



What is the seal around the blue thing? Seems pretty oily, I imagine it's failing?

What is the sensor with the nipple on it?

Any thoughts on where my oil might be coming from? It seems like around the very plugged up EGR there was lots of oil. Also, oil on the bottom side of the cold side of the turbo.

I purchased an EGR block off kit, based on the findings I think I won't be losing much by installing it.
The seal is part of the ARV (air relief valve). It does a similar job as the waste gate, as it dumps boost from the cold side, the waste gate dumps it from the hot. It is not needed in my opinion, and I usually disconnect all vacuum to them (YMMV). The sensor is a temp sensor for what I don't know (EGR control?), but the wire comes from around the coolant pump area, and may be hidden from view because of the air cleaner. As far as the carbon and oil buildup, the crankcase ventilation goes into the turbo intake air stream, and not through an oil separator on an '85. The turbo ingests all of the oil/gasses that come from the crankcase. Earlier models wit an oil separator do not get as badly gunked up.
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