Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

High iron and copper level in oil, next course of action


Recommended Posts

My used oil (5k miles) has ~25 ppm copper and ~18 ppm iron. Jake's expert opinion is that the rod bearings have been compromised.The car has 50k miles with oil change every 5k miles. Very well maintained and driven. Currently no symptoms and no oil leak. Engine feels smooth and strong.Now obviously I'm not going to tear the engine apart at this point. My current plan is to try the following to slow down the wear, if possible.1) JG break in oil + DT402) LN full flow oil filter adaptor3) Filtermag4) Oil change every 3kI'm considering doing the above in stages so I can tell the difference of each change. However, Even though my car is a DD, I only put about 5k miles on it so the next oil change will be a year from now. That will take a few years to try all of the above.Any other things you can think of that I should try?

Edited by Ahsai
Link to comment
Share on other sites

I wouldn't panic with only 1 high reading. I had a reading over 100ppm copper and high iron. The next reading after 3k miles was 6ppm, as have been subsequent readings.

First I'm not panicking :) Actually I have two reports saying the same, each covering 5k miles and one year on the oil. I've been using the same oil and 5k oil change routine for the past 5 years but only started UOA 1 yr ago. So I would say they are consistent and they eflect a two-year period.

Current plan is to get another report in 3k and re-evaluate if anything needs to be done. Thanks for your reply.

Edited by Ahsai
Link to comment
Share on other sites

I suppose some rod bearing wear is considered normal, but i'd have to ask why you're seeing those numbers on an engine with such low usage. It would be cheaper to deal with the problem now rather than waiting until a catastrophic failure. I have to agree with White987S regarding Jakes smarts - he'll build you a nice motor if your hunch is wrong, but forewarned is forearmed... I don't see how the items you've listed address the possible causes of the bearing wear - it seems like you'd be masking the problem instead. In my experience there seems to be a point where the wear starts accelerating quickly and maybe you hear the knocking rod before the "big one" or maybe you don't.... Just my 2 cents...

Link to comment
Share on other sites

I suppose some rod bearing wear is considered normal, but i'd have to ask why you're seeing those numbers on an engine with such low usage. It would be cheaper to deal with the problem now rather than waiting until a catastrophic failure. I have to agree with White987S regarding Jakes smarts - he'll build you a nice motor if your hunch is wrong, but forewarned is forearmed... I don't see how the items you've listed address the possible causes of the bearing wear - it seems like you'd be masking the problem instead. In my experience there seems to be a point where the wear starts accelerating quickly and maybe you hear the knocking rod before the "big one" or maybe you don't.... Just my 2 cents...

The item I listed MAY slow down the wear, not stopping it or reversing any damages already there. I see no logic to rebuild my engine now. My engine is strong and smooth and has no symptoms. Even Jake himself did not even hint I should rebuild it now.
Link to comment
Share on other sites

The item I listed MAY slow down the wear, not stopping it or reversing any damages already there. I see no logic to rebuild my engine now. My engine is strong and smooth and has no symptoms. Even Jake himself did not even hint I should rebuild it now.

This is new information. Good to know.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.