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 06-26-2013, 06:41 PM
Squiggle Dog's Avatar
MBCA Member
 
Join Date: Jul 2008
Location: Surprise, AZ, USA
Posts: 2,848
Replacing Oil Filter Housing Gasket On OM617 Engine

This article will show you how to replace the oil filter housing gasket on an OM617 engine (W116 300SD pictured). My engine is nearly leak-free, but it has been leaking quite a bit of oil from the oil filter housing. Tightening up the bolts didn't fix it, so I knew it was time to replace the gasket.

I assume the oil level is lower than the housing, and am not sure about oil levels in the cooler lines, but it was time for an oil change, anyway--and I didn't want to test it. I drained out the old oil.


Raising the oil tower lid helps the oil in the filter drain.


In order to loosen the oil cooler lines, a thin 24mm wrench is needed to hold the fittings from turning. You can get one of these cone wrenches from a bicycle shop for less than $10. A 27mm wrench is needed for the nuts on the oil cooler lines. If the lines are taking too much force to loosen and it's starting to round the nuts, you may have to cut a slot at the box end of the wrench so it will slip over the line and grip the nut. It may also be necessary to cut off the open end of the wrench to clear the vacuum lines. It was not necessary for me, though I did have to use a small adjustable wrench opened fully to turn off the nuts completely.



After the top line is loose, there are two sets of clamps (at least on a W116) that hold the lines. These should be loosened so that the lines can be moved out of the way.
__________________
Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 15 years ago. https://tryveg.com/

DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 344,000+ Miles
Reply With Quote
  #2  
Old 06-26-2013, 06:42 PM
Squiggle Dog's Avatar
MBCA Member
 
Join Date: Jul 2008
Location: Surprise, AZ, USA
Posts: 2,848
After the top line is disconnected, you should be able to access the one below it.


The open ends of the cooler lines should be covered with foil to prevent contaminants from getting inside. After the cooler lines are removed, there is an oil pressure line with a 17mm banjo bolt that needs to be removed as well. The later vehicles have a sensor instead of a pressure line.


At the lower rear of the housing is a 19mm banjo bolt that feeds oil to the turbocharger.


Getting out the five 6mm hex key mounting bolts is a challenge. I had to use a combination of a socket and a key by itself to access them. Be very sure the tool is seated into the head fully, because it would be very easy to strip out the inside of the head! Using a 6mm ratcheting wrench on a short section cut off of a key would make the job easier.

I removed the filter, wiped the oil out of the inside of the housing, then plugged the holes to keep contaminants out while I cleaned it.

__________________
Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 15 years ago. https://tryveg.com/

DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 344,000+ Miles
Reply With Quote
  #3  
Old 06-26-2013, 06:43 PM
Squiggle Dog's Avatar
MBCA Member
 
Join Date: Jul 2008
Location: Surprise, AZ, USA
Posts: 2,848
There are two rubber O-rings (015 997 94 48) at the bottom of the tube attached to the lid that tend to shrink and harden over the years, which can delay the time the oil pressure gauge starts reading.


The oil tower has a gasket that should be replaced while it's out. After scraping off the old one that was really glued on there, I sanded off all remnants with brake parts cleaner and 220 grit sandpaper. I like to sand in a motion parallel to the edges so it helps keep the oil from weeping.


I started cleaning the engine block and put on safety goggles to keep debris out of my eyes. As I was working, I felt something crawl on my head and then saw it wiggling over my eye. I batted it away, and when I looked over, I saw a scorpion on its back trying to get up. I don't really like it when that happens.


It was a bark scorpion, the most poisonous one in North America, and my house is infested with them.


Anyway, I went back to work cleaning the gasket surface. Make extra sure nothing falls into the ports.
__________________
Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 15 years ago. https://tryveg.com/

DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 344,000+ Miles
Reply With Quote
  #4  
Old 06-26-2013, 06:44 PM
Squiggle Dog's Avatar
MBCA Member
 
Join Date: Jul 2008
Location: Surprise, AZ, USA
Posts: 2,848
Here is what a clean surface looks like. The oil filter housing should be the same way.


The aluminum looked aged and dull, so I used 400, 800, 1000, and then 1500 grit wet sandpaper on it, followed by polish.



I used a light coat of Reinzosoil compound on both sides of the gasket. It's really tricky to get the housing back on without messing up the gasket, but it must be done. I put one of the bolts through the housing and the gasket to align it as I threaded the bolt. I made sure all the bolts were started a few threads before tightening them. The factory says to tighten them to 25nm, but good luck getting a torque wrench in there. I torqued one of them and then tried to match the rest.

CHOO CHOO! Funnel in place and ready for oil.


Put in the oil of your choice. I use Amsoil 15W40 Heavy Duty Diesel & Marine Synthetic Motor Oil with high phosphorus and zinc content. Don't forget to tighten up the oil pan drain plug and put in a new filter!
__________________
Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 15 years ago. https://tryveg.com/

DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 344,000+ Miles
Reply With Quote
  #5  
Old 06-26-2013, 06:44 PM
Squiggle Dog's Avatar
MBCA Member
 
Join Date: Jul 2008
Location: Surprise, AZ, USA
Posts: 2,848
Here is the housing all polished up. So far there are no leaks from it, except the aluminum crush washers of the oil pressure line fitting really had to be cranked down upon tight to stop leaking. The EPC doesn't list the sealing washers for the oil pressure lines, but they are the aluminum ones that come in an oil filter kit that fit the oil pan drain plug.


__________________
Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 15 years ago. https://tryveg.com/

DON'T MESS WITH MY MERCEDES!


1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 344,000+ Miles
Reply With Quote
  #6  
Old 06-26-2013, 06:57 PM
mach4's Avatar
Registered User
 
Join Date: Jul 2011
Location: San Diego County, CA
Posts: 2,736
Very nice write up.

Wish my engine was as leak-free as yours.
__________________
Current Stable
  • 380SL (diesel)
  • Corvette C5
  • Manx
  • Baja Bug
  • F350 Powerstroke
  • Auburn Boattail Speedster replica
Reply With Quote
  #7  
Old 06-26-2013, 07:04 PM
Doktor Bert's Avatar
Das Sturm Uberdoktor
 
Join Date: Jan 2005
Location: Palm Springs, CA.
Posts: 2,667
If you are servicing the vehicle (no polish of housing involved) pop filter cap and allow to drain. Clean around housing with spray cleaner, remove the bolts, slide out the old gasket, slide in the new one (no sealant) and tighten.

I changed mine a couple of weeks ago. Took less than 20 minutes on the hoist...FWIW
__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership
Reply With Quote
  #8  
Old 06-26-2013, 07:32 PM
Stevo's Avatar
Registered User
 
Join Date: Apr 2002
Location: NW WA
Posts: 6,285
Your engine compartment is a thing of beauty, nice job.
I changed the filter housing gasket on my TD when we did the steering box, it was a piece of cake that way. I have no more oil leaks and also use Amsoil 15/W40, good stuff.
__________________

1985 Euro 300TD 5 spd 220K
1985 Euro 240D 5 spd 130K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"
Reply With Quote
  #9  
Old 06-26-2013, 08:06 PM
Diesel911's Avatar
Registered User
 
Join Date: Sep 2007
Location: Long Beach,CA
Posts: 24,135
On My 84 300D there was that issue of room for the Torque Wrench if had an Allen Socket on it. I solved the problem by replacing some of the Allen Head Bolts with a regular Hex head bolts.
I found a short 12 point socket for the replaced Hex Head Bolts and was able to squeeze a Beam Type Torque Wrench with the short Socket for those Bolts.

In another thread I read I Guy had a Mechanic do the Gasket Change and the Mechanic removed the Steering Box. If that is done you can torque the stock bolts.

Also My original Gasket was just Paper and was not glued on.
__________________
84 300D, 82 Volvo 244Gl Diesel
Reply With Quote
  #10  
Old 06-26-2013, 08:25 PM
mach4's Avatar
Registered User
 
Join Date: Jul 2011
Location: San Diego County, CA
Posts: 2,736
Quote:
Originally Posted by Diesel911 View Post
Also My original Gasket was just Paper and was not glued on.
Don't waste your time with the paper gaskets. Get the real Mercedes "waffle gasket". You'll pay a bit more, but it won't leak!

The difference is obvious.





Guess which one seals better???
Attached Thumbnails
Replacing Oil Filter Housing Gasket On OM617 Engine-gasket1.jpg   Replacing Oil Filter Housing Gasket On OM617 Engine-gasket2.jpg  
__________________
Current Stable
  • 380SL (diesel)
  • Corvette C5
  • Manx
  • Baja Bug
  • F350 Powerstroke
  • Auburn Boattail Speedster replica
Reply With Quote
  #11  
Old 06-26-2013, 09:04 PM
Doktor Bert's Avatar
Das Sturm Uberdoktor
 
Join Date: Jan 2005
Location: Palm Springs, CA.
Posts: 2,667
Quote:
Originally Posted by mach4 View Post
Don't waste your time with the paper gaskets. Get the real Mercedes "waffle gasket". You'll pay a bit more, but it won't leak!

The difference is obvious.





Guess which one seals better???
Use only the MBZ 'waffle' gasket and use no sealer...
__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership
Reply With Quote
  #12  
Old 06-26-2013, 09:37 PM
Registered User
 
Join Date: Jan 2002
Posts: 18,353
I once bought an oil filter housing gasket from a dealer and it wasn't a waffle gasket.
__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
Reply With Quote
  #13  
Old 06-26-2013, 10:10 PM
Doktor Bert's Avatar
Das Sturm Uberdoktor
 
Join Date: Jan 2005
Location: Palm Springs, CA.
Posts: 2,667
Quote:
Originally Posted by kerry View Post
I once bought an oil filter housing gasket from a dealer and it wasn't a waffle gasket.
Mine was inked with the Benz 'star' and part number. Obtained from MBZ of Laguna Nigel...FWIW
__________________
Did you just pass my 740 at 200 kmh in a 300SD?????

1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013



100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership
Reply With Quote
  #14  
Old 06-26-2013, 10:34 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,174
do you happen to have that part number?


SCORPIONS!!! acck! and I though fire ants were the worst to deal with working on these cars... I've even seen the occasional Black Widow... SCORPIONS!

where the heck do you live? I don't wanna go there and work on cars!
__________________
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
  #15  
Old 06-26-2013, 10:37 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,174
I used to live in Tucson for a while back in 79... never saw any scorpions there. except in bolo ties and belt buckles...
__________________
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 12:59 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, 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