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 02-01-2005, 06:34 PM
Registered User
 
Join Date: Aug 2000
Location: Livonia, MI USA
Posts: 99
What Tools Needed, Cylinder Head R&R - 240D

Hi all.
As hard as it is for me to accept, I trust what my 35+ years experienced M-B tech is telling me - that I need a valve job on my '79 240D. It has been idling very roughly for some time, puffing black smoke in rhythm with the rough idle, and has lately been very hard to start, requiring the block heater, much cranking, and full fuel even at 50 deg. F ambient temperatures.
Injectors were ruled out as a cause, after testing, replacing, etc. accomplished nothing.
It only has 120,000 miles. We suspect that maybe the original owner (up to 70,000 miles) never adjusted valves. I've checked current valve adjustment and it is spot-on.
Compression test showed compression in #3 low and in #4 very low. Tech used compressed air to determine that it is leaking past the valves/seats.
I was told I can save some bucks by R&R-ing the head myself, so I'd like to do so.
But I'm looking at the service manual and it looks like maybe I need a special slide hammer for the chain slide rail bearing pin (116 589 20 33 00)? And if that doesn't work, another puller (115 589 20 33 00)?
What about a socket for the head bolts? I presume that I will need a 12-point socket for the 12-point bolts. Is that correct? If so, what size 12-point?
I am always in favor of making my own tools or adapting common tools, rather than trying to find official tools.
Engine is a 616.912
Car mfd. July 1979
Many thanks for any advice you all can offer.

__________________
Now you're suckin' Diesel!

'88 300SEL
'92 300D 2.5 Turbo
'96 Lincoln Town Car. The Jazzmobile.
Reply With Quote
  #2  
Old 02-01-2005, 07:28 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,281
Which shop manual are you looking at ?
I think you need the MB shop manual for the 616 engine to do it safely and correctly.
You can use a bolt and washers for instance instead of that slide hammer..I think that is shown in the manual. The addition of the Haynes 617 manual also helps sometimes due to its better pictures.
You need to look at your engine to determine which bolt head socket you need.
If you are looking at the shop manual the first part of each section tells the exact size of the tools you need... including any which you need to make yourself.
Reply With Quote
  #3  
Old 02-01-2005, 09:52 PM
Registered User
 
Join Date: Aug 2000
Location: Livonia, MI USA
Posts: 99
Thanks.
I am referring to the M-B factory service manual.
It's not the size/shape of the head bolts that I'm wondering about (they are 12-point). I'm just wondering if a 6-point Allen socket would work on them. I suspect that it would strip them and that I need a 12-point tool.
I will try a bolt for the bearing pin removal.

__________________
Now you're suckin' Diesel!

'88 300SEL
'92 300D 2.5 Turbo
'96 Lincoln Town Car. The Jazzmobile.
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
The #14 head on the 603, really bad? For sure? bbeardb Diesel Discussion 70 04-30-2007 09:34 AM
What Tools Needed, Cylinder Head R&R - 240D TedG Tech Help 1 02-01-2005 10:46 AM
Head gasket repair: My plan-critique needed please Strider Tech Help 3 02-01-2005 10:27 AM
Cylinder Head oldsouth Diesel Discussion 2 10-17-2004 01:40 AM
280 SL Cylinder Head needed tadink Vintage Mercedes Forum 0 09-14-2000 07:36 PM



All times are GMT -4. The time now is 03:38 PM.


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