Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 12-11-2017, 03:29 PM   #1
Rich
 
Join Date: Dec 2017
Location: IL
Posts: 32
help with diagnosis on 2000 boxster s

I have a 2000 boxster s with 53,000 miles. I haven't had it very long and don't know the service history. I could use some help diagnosing a problem. Here are the symptoms:
[*]had a check engine light code P1341. I reset it and it came back after 20 miles or less[*]the engine has a rattle at start up that last just a second or two[*]i found lots of green bits of rubber in the oil filter[*]durametric cam deviation is -7% bank one and -10% bank 2. both are solid and unchanging. also cam timing is 1 deg up to 2500 or 3000 and then changes to 25deg on both banks
Car runs very well.

After researching it sounds to me like one or both chain tensioners for the variocam is/are toast.

Any input would be appreciated. Thanks
Rich XTR is offline   Reply With Quote
Old 12-11-2017, 04:36 PM   #2
Registered User
 
BYprodriver's Avatar
 
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,242
Garage
Quote:
Originally Posted by Rich XTR View Post
I have a 2000 boxster s with 53,000 miles. I haven't had it very long and don't know the service history. I could use some help diagnosing a problem. Here are the symptoms:
[*]had a check engine light code P1341. I reset it and it came back after 20 miles or less[*]the engine has a rattle at start up that last just a second or two[*]i found lots of green bits of rubber in the oil filter[*]durametric cam deviation is -7% bank one and -10% bank 2. both are solid and unchanging. also cam timing is 1 deg up to 2500 or 3000 and then changes to 25deg on both banks
Car runs very well.

After researching it sounds to me like one or both chain tensioners for the variocam is/are toast.

Any input would be appreciated. Thanks
Sounds like the cam timing chain tensioner pads are damaged, recommend removing both cam covers to inspect & run engine as little as possible until issue is resolved.
This is a very difficult operation to do with engine in the car.
__________________
2000 S Speed Yellow LN 3.6L cylinders & pistons, triple row IMSB upgrade, R&R connecting rods, billet tensioner paddle&,oilpump driveshaft.Heads rebuilt by F6I with new valves & springs.Cayman airbox & MAF housing, 996 intake plenum & 75mm T/B. Fabspeedsport converters &Dansk muffler
BYprodriver is offline   Reply With Quote
Old 12-11-2017, 04:38 PM   #3
Artist, 986S tinkerer
 
NewArt's Avatar
 
Join Date: Aug 2013
Location: Montreal, Canada
Posts: 1,560
You need to change the chain ramps (pads/guides). Doable in the car but a lot easier if you drop the engine.
Ha, BYpro beatme to it!
__________________
James
2004 986 S
987 air intake TB and plenum, Mantissport 2 litre sump, UDP, Bilstein B6 with H&R lowering spings, re71-rs for track, other stuff.
https://www.youtube.com/user/12shoes2
NewArt is offline   Reply With Quote
Old 12-11-2017, 06:24 PM   #4
Rich
 
Join Date: Dec 2017
Location: IL
Posts: 32
Thanks for the quick replies. I was hoping to not drop the engine....but if i'm pulling both cam covers off it will be time well spent removing the engine. I will post up what i find in a couple weeks when i work on it over Christmas. Thanks again.
Rich XTR is offline   Reply With Quote
Old 12-11-2017, 06:45 PM   #5
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,919
not pads - actuators. much more expensive. pads are dark brown hard plastic, o-rings in actuators are soft green. failed actuator will give big deviation values.
The Radium King is offline   Reply With Quote
Old 12-11-2017, 06:50 PM   #6
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,919
The Radium King is offline   Reply With Quote
Old 12-12-2017, 01:09 AM   #7
Registered User
 
itsnotanova's Avatar
 
Join Date: Jul 2013
Location: Bastrop, Tx
Posts: 2,222
I'm thinking Radium King is correct as I had to replace mine for the same reason. My motor only had 37K on it and I believe the rubber O-rings deteriorated from sitting around too long. Not a cheap fix.
2001 Porsche Boxster S Convertible - Camshafts & Timing Chains - Page 2
__________________
Woody
itsnotanova is offline   Reply With Quote
Old 12-13-2017, 04:01 AM   #8
Registered User
 
Join Date: Jun 2014
Location: NC
Posts: 15
Sounds like cam timing chain tensioner pads are damaged. Why not ask from a local Porsche dealership's service department? A quick call may give a better idea.
boxapar is offline   Reply With Quote
Old 12-13-2017, 05:50 AM   #9
Rich
 
Join Date: Dec 2017
Location: IL
Posts: 32
I checked with the dealer earlier and the master tech said it might be from the oil filter housing but wasn't sure.

Still planing on dropping the engine and removing the valve covers. Any way to tell by looking at the actuators if they are bad since the seals are inside?
Rich XTR is offline   Reply With Quote
Old 12-13-2017, 06:04 AM   #10
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,919
Quote:
Originally Posted by Rich XTR View Post
I checked with the dealer earlier and the master tech said it might be from the oil filter housing but wasn't sure.

Still planing on dropping the engine and removing the valve covers. Any way to tell by looking at the actuators if they are bad since the seals are inside?
they are non-serviceable, so you cant open them to look inside (the actuators in the image - from my car - were ‘destructively disassembled’). ps, ask your tech how a failed oil filter o-ring gives you a -10 deviation. it’s a trick they play - tell you it’s a cheap fix to get you to start they work (ie, pads) and, once the engine is opened, hit you with an additional $2k for the actuators. fyi, the other ‘while you are in there’ jobs are variocam chains and the three tensioners (make sure you get the updated items). i think the actuators come with the updated pads. mine were done with engine in car.
The Radium King is offline   Reply With Quote
Old 12-13-2017, 11:41 AM   #11
Registered User
 
jb92563's Avatar
 
Join Date: Apr 2012
Location: Riverside, CA
Posts: 1,664
The green bits of rubber in the oil tell the story.

I think its the only green rubber inside the engine so that must be it unfortunately.

Good news it that you discovered it while things are still working well and not seriously gone bad.
__________________
"It broke because it wants to be Upgraded "
2012 Porsche Performance Driving School - SanDiego region
2001 Boxster S, Top Speed muffler, (Fred's) Mini Morimotto Projectors, Tarret UDP,
Short Shifter, Touch Screen Dual Din Radio, 03 4 Bow glass Top (DD & Auto-X since May 17,2012)
jb92563 is offline   Reply With Quote
Old 12-22-2017, 03:24 AM   #12
Rich
 
Join Date: Dec 2017
Location: IL
Posts: 32
OK. I have the engine out of the car. Here is what im planning on replacing:
Clutch, dual mass fly wheel, IMS, both verio cam adjusters, oil cooler o rings, both chains for the veri cam & spark plug tubes and o rings. I'm trying to make sure i have a complete shopping list of part i need. I plan on buying the crush washers for tensioners and coolant. Bolts for dual mass and pressure plate, green plugs. Can i reuse the cam cover bolts? Any other parts that are not reusable?
Rich XTR is offline   Reply With Quote
Old 12-22-2017, 05:29 AM   #13
Registered User
 
Join Date: Aug 2015
Location: Fulshear, TX
Posts: 221
I did everything on your list last winter. And I reused the cam cover bolts. Just cleaned them.

You will need some special tools to do the job. I made them myself.
dsallean is offline   Reply With Quote
Old 12-22-2017, 06:01 AM   #14
Rich
 
Join Date: Dec 2017
Location: IL
Posts: 32
Quote:
Originally Posted by dsallean View Post
I did everything on your list last winter. And I reused the cam cover bolts. Just cleaned them.

You will need some special tools to do the job. I made them myself.
Besides the cam holding tool used before removing the valve covers what other tools did you need?
Rich XTR is offline   Reply With Quote
Old 12-22-2017, 07:06 AM   #15
Registered User
 
Join Date: Aug 2015
Location: Fulshear, TX
Posts: 221
Quote:
Originally Posted by Rich XTR View Post
Besides the cam holding tool used before removing the valve covers what other tools did you need?
There is the #9611 tool to hold down the camshafts while removing and replacing the actuator. Made mine from wood and used cam cover bolts to hold them down. Also the #9634 which is one you are probably referring to which holds the camshaft ends. Made that from aluminum angle stock with some bolts. Also #9632 for compressing the actuator. Not totally necessary as you can compress them other ways but it was a lot easier for me to remove and reassemble with that tool. Made mine from reverse thread stock and a couple of locknuts. Super easy if you can get the correct reverse thread stock and nuts. (If you want to borrow mine just send me a PM and I will drop it in the mail for you to use)

http://www.nutrod.com/Nutrod/Pics/Pages/Install_Head_4-6.html#20


Of course you can buy them but I am a DIYer to the extent possible and since I was doing all this work with the engine still in the car I was planning on making things as easy as possible. Plus I had a little time to think about it and make the tools. Doing it with the engine out would have been significantly easier.

Dave

Last edited by dsallean; 12-22-2017 at 07:27 AM.
dsallean is offline   Reply With Quote
Old 12-23-2017, 02:41 AM   #16
Rich
 
Join Date: Dec 2017
Location: IL
Posts: 32
When removing the valve covers should the cam with the single notch (the side with only one green plug). should the notch point in or out for bank 1-2-3? and for 4-5-6?
Rich XTR is offline   Reply With Quote
Old 12-23-2017, 07:25 AM   #17
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,143
Quote:
Originally Posted by Rich XTR View Post
When removing the valve covers should the cam with the single notch (the side with only one green plug). should the notch point in or out for bank 1-2-3? and for 4-5-6?
When removing the cam cover, the engine should be locked at TDC, and a cam holding tool should be in place.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 12-27-2017, 07:56 AM   #18
Rich
 
Join Date: Dec 2017
Location: IL
Posts: 32
I have the cams out of side 4-6. 1) can i rotate the engine so i can take the cams out of 1-3 before putting 4-6 back together? 2) The tensioner moves freely back and forth but doesn't compress is that normal? Im trying to figure out if i have one bad tensioner or two.
Rich XTR is offline   Reply With Quote
Old 12-29-2017, 05:20 PM   #19
Rich
 
Join Date: Dec 2017
Location: IL
Posts: 32
Quote:
Originally Posted by The Radium King View Post
they are non-serviceable, so you cant open them to look inside (the actuators in the image - from my car - were ‘destructively disassembled’). ps, ask your tech how a failed oil filter o-ring gives you a -10 deviation. it’s a trick they play - tell you it’s a cheap fix to get you to start they work (ie, pads) and, once the engine is opened, hit you with an additional $2k for the actuators. fyi, the other ‘while you are in there’ jobs are variocam chains and the three tensioners (make sure you get the updated items). i think the actuators come with the updated pads. mine were done with engine in car.
you were correct. The one in your picture looks like 4-6 and mine is missing the thick green o ring completely. There was a little chunk in side the other piston....but none where it should be. The pads on 4-6 were in really bad shape but the 1-3 only one pad was bad.

Last edited by Rich XTR; 12-29-2017 at 05:23 PM.
Rich XTR is offline   Reply With Quote
Old 12-29-2017, 10:07 PM   #20
Registered User
 
Join Date: Feb 2017
Location: CO
Posts: 938
Replace all the tensioners while you are there... gotta spend that $$$. If one failed, its probable the other isn’t too far behind. Personally, I would replace all accessible wear items, save you $$$ down the road.
Geof3 is offline   Reply With Quote
Reply

Tags
2000 boxster s , camshaft deviation , green in oil , p1341


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 08:34 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