307 excessive oil in air inlet pipe

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quintet
(Donor 2025)
Posts: 332
Joined: 14 Apr 2010, 21:51
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307 excessive oil in air inlet pipe

Unread post by quintet »

Today i was going to replace the MAF on my 90hp 307 but after i took the old one off i found what i think is excessive oil in the pipe, i must confess i don't know when i last checked it & someone else fitted this particular MAF meter so it hasn't been cleaned out recently and i know "some oil" is normal but i think this is too much. My thoughts are with the car having poor idle (particularly when cold) on start up & coughing out white smoke (unburnt fuel) could a failed compressor oil seal cause this by the way of excessive hydrocarbons getting into the air/fuel mixture & thus make it run poor.

For the record the rear of this cars engine has oil all over it but with no obvious reason. Part of my reasoning can be read in this thread - https://pmmonline.co.uk/technical/commo ... t-307-hdi/
Attachments
Wet, possible sign of a failed seal on the compressor side.
Wet, possible sign of a failed seal on the compressor side.
Excessive oil?
Excessive oil?
Excessive oil
Excessive oil
Excessive oil
Excessive oil
Excessive oil
Excessive oil
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darbuck
Donor 2024
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Joined: 25 May 2014, 16:45
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Re: 307 excessive oil in air inlet pipe

Unread post by darbuck »

It could be increased pressure in the oil feed, return or pcv system rule them out and you are looking at bad seals in the turbo. I would check all the others first then look at the turbo
Darren