Go Back   986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat

 
 
LinkBack Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 06-10-2015, 02:48 PM   #8
Registered User
 
Join Date: Jun 2015
Location: northampton
Posts: 31
ok,
no oil in bottle,
oil covered engine again?
intake blocked and aos pipe into bottle.

1st checked exact amount of oil in car drained and measured. 7.6l without filter makes it 8.3l so digital guage correct, dipstic incorrect!

oil new so put back in at least for now.
compression test done, 11.5, 11.2, 10.5, 12, 13, 10 should be 11 so ok.

cleaned engine and all pipes again and put back together.

my theory at the mo is that the aos is working properly, however when the vacume is high it should shut to prevent oil being sucked into intake, this isnt happening so the only conclusion is there must be an air leak.. remember the hanibal lecture noise before it smoked,, on checking the aos to pcv pipe i noticed its not a tight fit, i think the seal has shrunk allowing air to be sucked in at high vacume.
ok how does that explain the oil on the engine, well as there was no vacume the rings wernt sealed so creating more crank pressure and pushing the oil past the aos to pcv seal?

so no smoke all way home as i drove it gently and tomorrow new seal and test it....

cheers
barks
barks is offline   Reply With Quote
 



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 05:43 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page