'87 300TDT Head Gasket change. Need help/manual - Mercedes-Benz Forum
Reply
 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 10-27-2009, 01:53 PM
BenzWorld Junior Member
 
Date registered: Feb 2009
Posts: 33
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Unhappy '87 300TDT Head Gasket change. Need help/manual

Hi Everyone!
I bought the 1987 300TDT diesel station wagon back in February. It has severe oil leakage, from multiple locations, some of it from two of the head bolts, which a Mercedes mechanic attributed to a faulty head gasket.
Its time to fix it, but I cant seem to find the proper repair manual anywhere.
I called Mercedes Benz head offices, then a local dealer, and even tried bentley publishers.
Any owners of the 300TDT's out there with a manual capable of taking me (and two experienced diesel mechanics) through this process?

Thanks for the help!

Kfir
Kfir is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 10-27-2009, 06:13 PM
BenzWorld Member
 
Date registered: Apr 2007
Location: NC
Posts: 213
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Quote:
Originally Posted by Kfir View Post
Hi Everyone!
I bought the 1987 300TDT diesel station wagon back in February. It has severe oil leakage, from multiple locations, some of it from two of the head bolts, which a Mercedes mechanic attributed to a faulty head gasket.
Its time to fix it, but I cant seem to find the proper repair manual anywhere.
I called Mercedes Benz head offices, then a local dealer, and even tried bentley publishers.
Any owners of the 300TDT's out there with a manual capable of taking me (and two experienced diesel mechanics) through this process?

Thanks for the help!

Kfir
Mercedes Benz Model 124 - OM602, OM603 Maintenance Manuals
orange911 is offline  
#3 (permalink) Old 11-01-2009, 12:29 PM
BenzWorld Junior Member
 
Date registered: Feb 2009
Posts: 33
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Thanx! that's perect.
Kfir is offline  
#4 (permalink) Old 11-01-2009, 12:59 PM
Modität!
 
Zeitgeist's Avatar
 
Date registered: Sep 2004
Vehicle: '87 300TD/'90 300D/'94 Quattro/'89 Vanagon
Location: Cascadia
Posts: 49,136
Mentioned: 1 Post(s)
Tagged: 3 Thread(s)
Quoted: 374 Post(s)
Lifetime Premium Member
The trickiest part of this operation will be pulling the chain-rail pins from the head, especially if they don't have the right tool. Everything else is just basic stuff everyone does when R&Ring a head.
Zeitgeist is offline  
#5 (permalink) Old 11-01-2009, 01:25 PM
BenzWorld Member
 
Date registered: Jul 2008
Location: Orlando, FL
Posts: 115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Replace the exhaust gasket too and you will need new bolts for the broken bolts in the exhaust manifold. Just some bolts from home depot or lowes will work with some lock washers and washers. Also, you'll probably end up breaking a couple throttle linkages like me. They get brittle and break so just try to be careful with them. Those guide rails do suck though, you have to basically build yourself a puller thing. I hear the slide hammer that is supposed to get those things out just ends up destroying them. Also, be careful with the timing obviously when reassembling and aligning the chain.

1992 300D - 178,000 miles.
yaric is offline  
#6 (permalink) Old 11-01-2009, 01:33 PM
BenzWorld Junior Member
 
Date registered: Feb 2009
Posts: 33
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
It sounds more and more like I dont want to do this job myself, even with help from my friends, and they're not happy about it either. Neither of them as ever worked on a mercedes. They have experience with VW and heavy equipment, but not benz.
Problem is I cant afford the $90/hr rate of the shop. I'm even buying the parts myself and saving hundreds on them, but even that is a stretch.
I guess I'll just keep the leak for now, slowly buy all the parts, and save some money for the shop to do it.

Any good souls out there with experience and lower rates?
Kfir is offline  
#7 (permalink) Old 11-01-2009, 02:02 PM
Modität!
 
Zeitgeist's Avatar
 
Date registered: Sep 2004
Vehicle: '87 300TD/'90 300D/'94 Quattro/'89 Vanagon
Location: Cascadia
Posts: 49,136
Mentioned: 1 Post(s)
Tagged: 3 Thread(s)
Quoted: 374 Post(s)
Lifetime Premium Member
It's really not that bad--lots of DIY guys have done this successfully. We can walk you through any rough patches
Zeitgeist is offline  
#8 (permalink) Old 11-02-2009, 04:20 PM
BenzWorld Junior Member
 
Date registered: Feb 2009
Posts: 33
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Thanks Zeitgeist. I appreciate the willingness to help.
I guess the first step would be for me to get a list of all necessary tools and parts.

Here's what I have already ordered from GermanImportedParts.com (GIP):

-Head Gasket Set
-Valve Stem Seal Kit
-Head Bolt Kit
-Valve Cover Gasket
-Oil Filter Kit
-Headbolt 12 point 1/2" "socket"
-Timing cover sealant

The local benz (non dealership) mechanic also included the following on the list he gave me, but not knowing if they were a must or not, I chose not to buy them yet due to tight finances:

-Timing Chain Tensioner 601-050-07-11
-Timing Chain 003-997-55-94 (Found on GIP as 003-997-I4894)
-Timing Chain Link 000-997-23-98 (Found on GIP as 000-997-1298)
-Timing Guide Rail 601-050-08-16 (Called Tensioner Rail on GIP)
-Timing Guide Rail 601-052-05-16 (Called Chain Rail on GIP)
-Timing Guide Rail 601-052-03-16 (Called Chain Rail on GIP)
-Timing Rail Pivot Pin 606-052-05-74
-Timing Rail Pivot Pin 606-052-06-74

So... are the timing parts absolutely necessary for the head gasket job? According to the online manual it seems they are... but I'm still holding a hope there's a way to do it without all of that extra headache.
If they are indeed necessary, where can I get the special tools needed to deal with those, and what exactly are those tools called (part numbers?).

And last but not least, what are other recommended parts I should get... hoses, gaskets, fluids, etc.
Ideally, I would like to have everything I could possibly need on hand before I start the job. Once it starts, I will have a very short time window to be without an operating vehicle.
Which brings me to another question... how long should I expect this job to take for a couple of DIY'ers, with hand tools?
Kfir is offline  
#9 (permalink) Old 11-03-2009, 07:04 AM
Modität!
 
Zeitgeist's Avatar
 
Date registered: Sep 2004
Vehicle: '87 300TD/'90 300D/'94 Quattro/'89 Vanagon
Location: Cascadia
Posts: 49,136
Mentioned: 1 Post(s)
Tagged: 3 Thread(s)
Quoted: 374 Post(s)
Lifetime Premium Member
Your first set of parts looks good, but if you're planning on doing the stem seals, you'll also need a special valve spring compressor. I can't remember whether the head bolts a stretch-type, so they may not absolutely be required.

From your second set, I'd add the two pivot pins to the "must have" list. When you remove the valve cover, you'll want to check timing chain stretch, which will determine whether a new chain is required. You can easily remove the head without breaking the chain links, so if it's not required, don't bother.

Here's the pivot pin tool:



They run about $30 on ebay right now.

In your original post, you mentioned leaking oil which you were told is caused by the head gasket. The typical failure mode for these OM603 gaskets is to leak from the chain vault into #1 cyl, rather than externally, so I'd want to be absolutely sure of the source of your leak. If it's on the drivers side middle of the engine, it's more than likely the bottom cover of the injection pump. Just a thought
Zeitgeist is offline  
#10 (permalink) Old 11-03-2009, 07:33 AM
BenzWorld Junior Member
 
Date registered: Feb 2009
Posts: 33
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Thanks Zeitgeist.
The oil leaking came from atleast 3 different spots. The turbo drain tube, which I fixed (there was a bolt missing). The vacuum pump gasket, which I replaced but it started leaking again - that could be because I didnt put any sealant on the gasket. Going to do that one again. The third leak is from the front two head bolts. There's actually oil coming out from around the heads of the bolts.
I had those two replaced, and sealant added to their threads, and that fixed the leak temporarily. It was back within days. The mechanic suspects there's a tear in the head gasket, which allows oil to get to those two bolts, then travel up the threads and out the top.

There may very well be other leaks, but with so much coming out of the ones I mentioned, its impossible to locate now.

Another question: is there anything special I need (ie tools, computer software etc) for adjusting the timing? Dont assume I know what all that entails or means... its just that my mechanic, when he heard I want to try this myself, asked "So how are you going to adjust the timing?"

Last edited by Kfir; 11-03-2009 at 07:35 AM.
Kfir is offline  
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W124 E,CE,D,TD Class

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Topic Author Forum Replies Last Post
190e head gasket new head panzerbenzer W201 190 Class 0 04-19-2009 07:04 AM
Service manual for head gasket repair ppetracca W201 190 Class 3 07-23-2007 08:49 PM
87 300tdt radatior resevior change out kn90d3 W124 E,CE,D,TD Class 2 05-02-2007 05:40 AM
C 280 96: Do I change the head gasket now or can I wait? Meru W202 C-Class 11 05-20-2006 06:32 PM
Vibrations 300TDT, manual transmission bkr W123 E,CE,D,CD,TD,TE Class 1 05-17-2004 02:58 AM

Posting Rules  
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 

Title goes here

close
video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome