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

Reply
 
LinkBack Thread Tools Display Modes
Old 05-28-2019, 01:47 AM   #1
Registered User
 
Join Date: May 2019
Location: Australia
Posts: 9
Unknown material in oil filter?

Recently aquired a 2001 Boxster 2.7 Tiptronic with 146,000kms on the clock.

The car has only done 5,000kms in the last 3yrs, and I don't think it's had an oil or filter change in that time.

When I dropped the oil and pulled the filter, I found a lot of what looked at first like metal in the filter and assumed the worst that the IMS bearing had failed. But after cutting the filter open and washing it and collecting all of the material in the filter, I found that it was not metal (ferrous or alloy). After running a powerful magnet over the material all I got was a few very tiny slivers of ferrous metal, and found no alloy at all. But the remaining material is a mystery, apart from a few pieces of what is obvioulsy cam guide pad material (light and dark brown), the rest of it's a dark green color and it's the consistency of hard rubber?

I pulled the transmission to check the IMS Bearing and the back of it was in perfect condition, so I decided that having come this far I might just as well pull it out and put in a new one. After pulling it out I found it in as new condition, no deterioration in the plastic and the bearing was as smoooth as?

So has anyone ever seen this type of material in a filter before, I have no idea where this dark green material could have come from. The only thing that has been replaced in the engine was the RMS at 120,000kms.

When I pulled the bottom right cam tensioner and cleaned and primed it, I noticed that it was allowing oil to steadly seep out of the plunger shaft, so guessing it's had it.

Picture shows cam pad material on the left and the mystery green material on the right.
Liamray is offline   Reply With Quote
Old 05-28-2019, 02:15 AM   #2
Registered User
 
Join Date: Sep 2016
Location: Stow, MA
Posts: 754
Garage
Water pump impeller material? Even though the color also seems wrong for that.

AFIK the chain tensioner pads and the impeller is the only plastic in the engine that can be ground to pieces and enter the oil.
__________________
2004 Boxster S Silver - FUNTOY
2002 Boxster Base Guardsy Red - FUNBOX
2009 Mercedes Benz CLK 350 convertible
2015 Chevrolet Volt
1941 Dodge Luxury Liner Coupe
Anker is offline   Reply With Quote
Old 05-28-2019, 03:49 AM   #3
Registered User
 
steved0x's Avatar
 
Join Date: Dec 2012
Location: FL
Posts: 3,843
Is it spongy, like you could dent it with your fingernail? It might be chopped up sealant from an overzealous dealing job from a previous repair? Edit: Just saw consistency of hard rubber, so maybe?

Did you drop the oil pan cover and see, if it is this you may see some of this clogging the oil pickup screen.

Edit 2: Some possible causes here, (different than what i thought above)
My first REAL SCARE with the Boxster! need some advice..

Last edited by steved0x; 05-28-2019 at 03:55 AM.
steved0x is offline   Reply With Quote
Old 05-28-2019, 03:54 AM   #4
Motorist & Coffee Drinker
 
78F350's Avatar
 
Join Date: Jul 2014
Location: Oklahoma
Posts: 2,183
Garage
Cam chain adjuster. Pad (brown) and internal seal (green). Look at this:

P1325 & green rubber plastic bits in the oil - Is the end near?

Note TRK's post in that thread, not mine.
__________________
I am not an attorney, mechanic, or member of the clergy. Following any advice given in my posts is done at your own peril.

Last edited by 78F350; 05-28-2019 at 04:00 AM.
78F350 is offline   Reply With Quote
Old 05-28-2019, 05:51 AM   #5
Registered User
 
Join Date: May 2019
Location: Australia
Posts: 9
Thanks for the replies, I did drop the sump and it was pretty clean with only a few pieces of the green material in it and on the oil pickup screen. My money is on the cam tensioners as the culprits.
Liamray is offline   Reply With Quote
Old 05-28-2019, 06:24 AM   #6
Who's askin'?
 
maytag's Avatar
 
Join Date: Mar 2018
Location: Utah
Posts: 1,018
Quote:
Originally Posted by Anker View Post
Water pump impeller material? Even though the color also seems wrong for that.

AFIK the chain tensioner pads and the impeller is the only plastic in the engine that can be ground to pieces and enter the oil.
How is the water-pump impeller going to end up in the oil filter?
I mean, if it did, then you've got MUCH bigger problems.
maytag is offline   Reply With Quote
Old 05-28-2019, 07:36 AM   #7
Registered User
 
Join Date: Mar 2014
Location: Eastern NC
Posts: 607
Garage
Quote:
Originally Posted by 78F350 View Post
Cam chain adjuster. Pad (brown) and internal seal (green). Look at this:

P1325 & green rubber plastic bits in the oil - Is the end near?

Note TRK's post in that thread, not mine.
Yse, the green seal on the adjuster are well shown in the thread you provided.
__________________
"YouTube Certified in Various Specialties"
BFeller is offline   Reply With Quote
Old 05-28-2019, 07:48 AM   #8
Registered User
 
Join Date: Sep 2016
Location: Stow, MA
Posts: 754
Garage
Quote:
Originally Posted by maytag View Post
How is the water-pump impeller going to end up in the oil filter?
I mean, if it did, then you've got MUCH bigger problems.
Ha ha, of course. Slip of the mind!
__________________
2004 Boxster S Silver - FUNTOY
2002 Boxster Base Guardsy Red - FUNBOX
2009 Mercedes Benz CLK 350 convertible
2015 Chevrolet Volt
1941 Dodge Luxury Liner Coupe
Anker is offline   Reply With Quote
Old 05-28-2019, 04:27 PM   #9
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,368
Wow, that's a LOT of green material!

If you found that much from just one oil change, there must not be much left of that part.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
thstone is offline   Reply With Quote
Old 05-28-2019, 05:36 PM   #10
Registered User
 
Join Date: May 2019
Location: Australia
Posts: 9
Quote:
Originally Posted by thstone View Post
Wow, that's a LOT of green material!

If you found that much from just one oil change, there must not be much left of that part.
Yes it was owned by an 82yr old guy and I don't think he drove it much in the last 3yrs he owned it (only 5,000km), and I reckon that it sat for long periods and that would have allowed seals and o'rings to dry and perhaps deteriorate and crumble?

Anyway I've decided to err on the side of caution and replace the variocam tensioners and timing chain tensioners just to be safe, along with the IMS bearing of course.
Liamray is offline   Reply With Quote
Old 06-01-2019, 09:17 PM   #11
Pathological Tinkerer
 
Join Date: Mar 2017
Location: Utah
Posts: 130
Quote:
Originally Posted by Liamray View Post



Anyway I've decided to err on the side of caution and replace the variocam tensioners and timing chain tensioners just to be safe, along with the IMS bearing of course.

Fun job.. I did mine over the winter. Pulled the motor to do it. Biggest PITA is laying the bead of sealant in the valve covers properly.

When you mention timing chain tensioners, are you talking about the four tensioning paddles or the three screw in tensioners?
P_Carfahrer is offline   Reply With Quote
Old 06-07-2019, 05:41 PM   #12
Registered User
 
Join Date: May 2019
Location: Australia
Posts: 9
I will be replacing the Ďvariocam tensionersí, the 3 screw in tensioners and the paddles that I can reach without splitting the cases. When I say Iím doing it thatís not entirely true, though Iíve removed the transmission and have the engine ready to drop out, I have a Porsche Mechanic doing the work on the engine.
Liamray is offline   Reply With Quote
Reply


Thread Tools
Display Modes

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 09:00 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page