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 01-02-2008, 02:32 PM
Registered User
 
Join Date: Jun 2005
Location: Corvallis, OR
Posts: 39
Advice on how to get to gasket for timing chain tensioner- '81 300D

Howdy,

I'm pretty sure my oil leak is coming from the timing chain tensioner gasket on my 1981 300D. The leak just ruined my alternator so I'm gearing up to fix it (plus my environmental conscience is feeling guilty for dripping oil on the roadways of America for several thousand miles). So here's the question:

How does a person get to the gasket for the tensioner? I'll have the valve cover off to adjust the valves and I'm really hoping you experienced hands will tell me it's not too much extra work to replace the tensioner gasket from there.

thanks,
Randy

Reply With Quote
  #2  
Old 01-02-2008, 03:19 PM
Registered Diesel Burner
 
Join Date: Aug 2001
Location: Northern Virginia
Posts: 2,911
If memory serves me correctly, I believe it works best if you take off the coolant thermostat housing off the head as well as the timing chain tensioner. This gives you a nice flat area on the side of the head that is easy to clean. And clean you must. I suggest a razor blade scraper and then sand paper.

Ken300D
__________________
--------------------------
1982 300D at 351K miles
1984 300SD at 217K miles
1987 300D at 370K miles
Reply With Quote
  #3  
Old 01-02-2008, 05:57 PM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,390
Answer:

Remove the thermostat housing for access.
You should replace the water pump bypass hose when doing this job.
Warning:
There are two bolts and one manifold nut holding the tensioner, the housing will break if you forget any of these fasteners when removing the tensioner.

#1. Remove the end cap from the tensioner.
#2. Remove the spring.
#3. Remove the two bolts and one nut that mount the housing.
#4. Remove the tensioner housing.
#5. Push the tensioner pin FORWARD out of the housing.
#6. Clean the gasket surfaces.
#7. Install the NEW gasket and housing to the engine block.
#8. Install the two bolts and one nut that mount the housing.
#9. Install the tensioner pin FORWARD into the housing.
#10. Install the spring.
#11. Install the end cap on the tensioner.

You should replace the water pump bypass hose at this point.

You should replace the engine thermostat at this point if it has not been replaced in the last two years.

Clean the thermostat housing gasket surfaces.
Install the thermostat housing.

NOTE:
If any cooling system hoses are hard or cracking, they need to be replaced now.

Remove the cooling system cap.
Disconnect the upper radiator hose from the radiator, and fill the cooling system through this hose.
Install the upper radiator hose.
Install the cooling system cap.



MB# 6170520280

PART NUMBER SEARCH RESULTS WITH PRICES
A5160-35562 Chain Tensioner Gasket Goetze IN STOCK



MB# 6162030280

PART NUMBER SEARCH RESULTS WITH PRICES
G4020-38883 Thermostat Housing Gskt. Elring IN STOCK



MB# 900271042012

Item Number: 900271042012
Main Category: MERCEDES-BENZ
Sub Category: Heater Hose
Description: BY PASS HOSE, PARTIAL CUT INCLUDES GROUND FREIGHT...




Have a great day.
__________________
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/

Last edited by whunter; 01-02-2008 at 06:21 PM.
Reply With Quote
  #4  
Old 01-02-2008, 07:52 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,832
is roy the shizney or what?

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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 12:08 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page