Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 09-08-2003, 11:23 AM
Registered User
 
Join Date: Mar 2002
Posts: 54
Angry Oil Leak 81 280TE

I have an 1981 280TE that has an oil leak from the front of the engine, that is causing oil to be blown back over the passenger side of the engine compartment. I have checked the timing chain tensioner port and it does not seem to be the culprit. My question is in searching for the cause I can't find the PCV valve (if the unit has one) if any one could give me a hint on its location and how to test it I would greatly appreciate it.

G
Reply With Quote
  #2  
Old 09-09-2003, 08:42 AM
Registered User
 
Join Date: Mar 2002
Posts: 54
This is the M110 engine if this helps anybody

G
Reply With Quote
  #3  
Old 09-09-2003, 01:20 PM
Super Moderator
 
Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
I was all set to say that it's the tensioner o-ring seal. Are you sure that's not it?

That, the cam cover gasket. cam box gasket, and front main seal are all that I am aware of that could cause this.

The crankcase ventilation is mid-way on the driver's side of the engine. You should see a tube from the intake manifold to the cam box. You remove the valve cover and it takes a giant screwdriver or flat piece of metal to remove it.
__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
Reply With Quote
  #4  
Old 09-09-2003, 01:31 PM
Registered User
 
Join Date: Mar 2002
Posts: 54
I looked at the tensioner using a flashlight and mirror and did not see any oil streaks that would indicate a leak. I do see oil on the front of the engine as well, so I am thinking it might be the front seal. My chiltons is rather poor at diagramming this engine and I don't find any instruction on how to replace the seal. I wanted to check the PCV valve but again my chiltons doesn't show where it is located or how to test it. The reason for this is the oil seems to come out when I run the engine hard for a long period (daily 90 miles round trip to work at 75 mph). When idling in the driveway it does not leak as much.
Reply With Quote
  #5  
Old 09-09-2003, 01:40 PM
Super Moderator
 
Join Date: Apr 2000
Location: Falls Church, VA
Posts: 5,316
I'll look on the M110 CD and see what's there on the front seal - but I won't be back home until Thursday. Send me an email so I can attach it.

You can certainly start by doing all the stuff you need to do to get the balancer off the crank!
__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe
Reply With Quote
  #6  
Old 09-15-2003, 12:25 PM
Registered User
 
Join Date: Mar 2002
Posts: 54
Update, I removed the vacuum line leading to the intake manifold from the valve box and discovered that there was a clog in the box. On removing the valve cover I found the hole leading to the vacuum line completely blocked and cleaned it out. I have now reassembled the car and am going to check on the leaks to see if there is any improvements.
Reply With Quote
Reply

Bookmarks

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 -4. The time now is 01:43 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page