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-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-08-2014, 09:41 PM
Registered User
 
Join Date: May 2009
Posts: 20
head gasket problem...300TD 1985

ok, pulled my head today and I think this is my problem but needed some community opinions.
symptoms..
1) loud noise from cylinder 5
2) fluid squirting from between head and block can be seen with a flashlight
3) no lose of power, coolant, or any other issues except loud (exhaust?) noise
4) didnt over heat, drove 50 miles home in such condition.
after seeing issue #2, i risked it with no other evidence and removed the head. This is what i found, and im pretty confident this was my problem.

should i get the head examined since i already have it removed? im leaning toward yes..
any thoughts are greatly appreciated.

Attached Thumbnails
head gasket problem...300TD  1985-busted-head-gasket.jpg  
Reply With Quote
  #2  
Old 03-08-2014, 11:50 PM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,416
Answer

Yes, that looks like a failed head gasket.

90% odds the valve guides are worn beyond spec = yes, have the head serviced.


.
__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/
Reply With Quote
  #3  
Old 03-09-2014, 01:21 PM
Registered User
 
Join Date: May 2009
Posts: 20
thanks you for your response.
any idea as to what might have caused this?
Reply With Quote
  #4  
Old 03-09-2014, 01:37 PM
macdoe
 
Join Date: Sep 2007
Location: Canada
Posts: 759
I wonder if you have coolant in your oil? My cylinder walls did'nt look like that when we opened our engine, but then maybe ours sat long enough? I think that if coolant gets in your oil...you want to get it out of your engine asap, and away from bearing surfaces. Seems to me, someone mentioned that because coolant is heavier, when you pull the oil drain plug...you can see the coolant come out first followed by the oil.
Reply With Quote
  #5  
Old 03-09-2014, 01:39 PM
macdoe
 
Join Date: Sep 2007
Location: Canada
Posts: 759
Quote:
Originally Posted by slash5guy View Post
thanks you for your response.
any idea as to what might have caused this?
How many miles on this engine?
Reply With Quote
  #6  
Old 03-09-2014, 02:13 PM
Registered User
 
Join Date: May 2009
Posts: 20
there was no overwhelming evidence of coolant in the oil and no loss of performance..nothing other than a very loud air sucking sound, and visually was able to see air shooting from the area where there is a whole in the head gasket.
no idea how many miles are on the motor; the car was in an accident before i owned it, and Ive been told the motor isn't correct for the car, and the odometer was broken for a couple years, at least. the odometer reads 272k miles, and as worked for the last 3+ years. Ive owned the since '07.

when i drained the oil for this repair, there wasn't any coolant in the oil, but very minimal amount of oil was in the coolant.
Attached Thumbnails
head gasket problem...300TD  1985-85-mercedes.jpg  

Last edited by slash5guy; 03-09-2014 at 02:37 PM.
Reply With Quote
  #7  
Old 03-09-2014, 03:17 PM
macdoe
 
Join Date: Sep 2007
Location: Canada
Posts: 759
Thats good news! I had it lucky that way too...oil in the coolant No coolant in the oil. I wonder if at a certain age or mileage these headgaskets get hard and dried out and crack? Being the cause, don't know...could be other things. We ended up having to have the head resurfaced cause of warpage (drove too long that way?)...also found a broken valve guide and redid all the exhaust guides+ full valve job. Apparently oil/coolant mixture turns to acid and eats the bottom end bearings?
Reply With Quote
  #8  
Old 03-10-2014, 04:29 PM
Registered User
 
Join Date: May 2009
Posts: 20
took the head to the machine shop today..
heres some photo's, anyone see anything that needs attention?head gasket problem...300TD  1985-bottome-head...b.jpg
Reply With Quote
  #9  
Old 03-10-2014, 09:20 PM
Registered User
 
Join Date: May 2007
Location: Out in the Boonies of Hot, Dry, Dusty, Windy Nevada
Posts: 9,652
Three of the Pre chamber ball ends are light colored and the end one isn`t. what`s up with that? can`t see #5.

What are you using for fuel?

Camera isn`t close enough to make any real diagnosis. You will need to clean it food to see if there are any cracks around the valves or between them.

CHAD had some good pictures of his 300TD head rebuild thread showing cracks when he cleaned it really good. It was replacement time for him.

Charlie
__________________
there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
Reply With Quote
  #10  
Old 03-10-2014, 09:44 PM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,416
FYI

Quote:
Originally Posted by slash5guy View Post
took the head to the machine shop today..
heres some photo's, anyone see anything that needs attention?Attachment 119789
You need to read through this thread, and look at the pictures
1985 300TD head gasket repair


.
__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/
Reply With Quote
  #11  
Old 03-11-2014, 05:25 PM
Registered User
 
Join Date: May 2009
Posts: 20
thank you both for your response..i have read that thread very thoroughly, that gave me the confidence to do this job...although i did have a couple issues i was able to make out. one thing i need to do i replace the tension rail for the chain..i have confidence the machine shop will do a thorough analysis and i will have it back together in no time.
thanks for the help.

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 08:24 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page