w123 oil pan bolt torquing question - Mercedes-Benz Forum
 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 06-03-2010, 07:24 PM
BenzWorld Elite
 
chad300tdt's Avatar
 
Date registered: Jun 2007
Vehicle: 1985 300TD, 1985 300CD, 1986 300SDL
Location: North Wales, PA
Posts: 2,136
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
w123 oil pan bolt torquing question

I'm getting ready to put the oil pan back on my 1985 300TD with a new gasket.

I've read that the bolts need to be torqued to:

Oil pan bolts 9-11 Nm (6-8 Ft Lbs 79-97 Inch Lb )


My torque wrench goes from 5-80 ft. lbs. in .5 lb increments.

Should I start at 6 and work a pattern around the pan tightening each bolt? Is there a recommended tightening pattern or do you just try to star pattern it the best you can like lug bolts and just keep tightening them up to 8 ft. lbs if there are leaks?

I may be making more out of this than I need to, but I would like to make sure I get a leak free oil pan on the first try. The oil pan was a leaking mess prior to this and leaked heavily along the entire back straight edge.

Chad
1985 300CD - "Gladys" | 1998 Acura 3.0 CL | 1993 Acura Vigor GS | 2005 Dodge Magnum SXT AWD

"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)
chad300tdt is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 06-03-2010, 09:09 PM
Lifetime Premium Member
 
Ted L. Nancy's Avatar
 
Date registered: Sep 2008
Location: Birmingham, AL
Posts: 543
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Lifetime Premium Member
Quote:
Originally Posted by chad300tdt View Post
Should I start at 6 and work a pattern around the pan tightening each bolt?
Yes.

Although, I've never used a torque wrench. As a precaution against a leak, you may consider brushing some Permatex brand Aviation sealant on the engine, oil pan, and both sides of your gasket. You don't need to apply it liberally, just a thin, covering layer. I have never needed to use this gunk on my oil pan gasket, but it has worked so well for me in stopping other leaks on my 123 and all my other cars that I'll probably just use it next time for good measure.

Generally, my tightening pattern would be sides, corners, and then everything in between.

My vehicles:
59 220S Sedan | 83 300 CD | 00 C230 Kompressor | 89 911 Carrera | 05 911 Carrera | 03 Explorer | 06 Odyssey
Other vehicles I work on:
94 S 420 | 08 CLK 350 Coupe | 09 ML 350 | 00 323i | 01 330i | 03 X3 | 07 335i | 02 Jetta GLS Turbo | 03 Passat | 01 S60 T5 | 83 XJ6 | 03 Pathfinder | 08 RX 350 | 96 Blazer | 07 Silverado 1500
Ted L. Nancy is offline  
#3 (permalink) Old 06-03-2010, 09:19 PM
BenzWorld Elite
 
chad300tdt's Avatar
 
Date registered: Jun 2007
Vehicle: 1985 300TD, 1985 300CD, 1986 300SDL
Location: North Wales, PA
Posts: 2,136
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Thanks!

Chad
1985 300CD - "Gladys" | 1998 Acura 3.0 CL | 1993 Acura Vigor GS | 2005 Dodge Magnum SXT AWD

"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)
chad300tdt is offline  
#4 (permalink) Old 07-12-2010, 06:40 PM
BenzWorld Member
 
esidneyw's Avatar
 
Date registered: Apr 2009
Vehicle: 1984 Mercedes Benz 280E
Location: Virginia
Posts: 126
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hey I'm about to change the oil pan on my 84 280E and was wondering if you happened to use that Permatex brand Aviation sealant and if so how's everything holding up?


1998 Mitsubishi 3000GT SL - Garage Kept/Weekend Driver/FOR SALE
1984 Mercedes Benz 280E - DD
esidneyw is offline  
#5 (permalink) Old 07-12-2010, 07:03 PM
BenzWorld Elite
 
chad300tdt's Avatar
 
Date registered: Jun 2007
Vehicle: 1985 300TD, 1985 300CD, 1986 300SDL
Location: North Wales, PA
Posts: 2,136
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
I didn't use any sealant. I know of another MB owner that used sealant on the gasket and ended up redoing it without the sealant due to a leak.

I just finger tightened all the bolts, then torqued them to 6 ft. lbs. and then went around and torqued them to 8 ft. lbs.

No leaks so far.

Chad
1985 300CD - "Gladys" | 1998 Acura 3.0 CL | 1993 Acura Vigor GS | 2005 Dodge Magnum SXT AWD

"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)
chad300tdt is offline  
#6 (permalink) Old 07-12-2010, 08:55 PM
BenzWorld Member
 
esidneyw's Avatar
 
Date registered: Apr 2009
Vehicle: 1984 Mercedes Benz 280E
Location: Virginia
Posts: 126
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Awesome! Thanks for the quick reply! Can't wait for an oil pan that doesn't leak!


1998 Mitsubishi 3000GT SL - Garage Kept/Weekend Driver/FOR SALE
1984 Mercedes Benz 280E - DD
esidneyw is offline  
#7 (permalink) Old 07-22-2010, 02:41 PM
BenzWorld Member
 
esidneyw's Avatar
 
Date registered: Apr 2009
Vehicle: 1984 Mercedes Benz 280E
Location: Virginia
Posts: 126
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What pan gasket did you use?


1998 Mitsubishi 3000GT SL - Garage Kept/Weekend Driver/FOR SALE
1984 Mercedes Benz 280E - DD
esidneyw is offline  
#8 (permalink) Old 07-22-2010, 07:27 PM
BenzWorld Senior Member
 
martureo's Avatar
 
Date registered: Feb 2009
Vehicle: 1984 300D, 1983 300TD, 1995 E300
Location: Maryland
Posts: 412
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by esidneyw View Post
Hey I'm about to change the oil pan on my 84 280E and was wondering if you happened to use that Permatex brand Aviation sealant and if so how's everything holding up?
I know it's expensive but if you really need to use a gasket sealer for the pan ask for Mercedes black RTV at the dealer. It comes in a medium size tube for $35 ($20 with MBCA discount!). The master techs I know swear by it if it isn't a trans seal.

1984 300D "Elsa"
1983 300TD "Mitzi" 268,XXX
1995 E300 "no name yet" (wife's car)

Stock except for egr welded shut, LubroMoly 5w40, Mobil 1 syn in diff.
martureo is offline  
#9 (permalink) Old 07-24-2010, 11:06 PM
BenzWorld Member
 
esidneyw's Avatar
 
Date registered: Apr 2009
Vehicle: 1984 Mercedes Benz 280E
Location: Virginia
Posts: 126
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Would the Permatex black RTV sealant work good enough? It's not from the dealership but it sounds like the same stuff. It's half the price too lol.


1998 Mitsubishi 3000GT SL - Garage Kept/Weekend Driver/FOR SALE
1984 Mercedes Benz 280E - DD
esidneyw is offline  
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W123 E,CE,D,CD,TD,TE 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
Yippie! The rounded oil pan bolt chronicles lovemyc280 W202 C-Class 6 07-23-2009 12:29 PM
Stripping oil pan bolt klgould W210 E-Class 25 01-02-2009 11:11 PM
crossfire oil pan = e320 oil pan? (upper pan removal?) fastmayte W210 E-Class 4 06-28-2008 05:06 PM
DIY Tip: Removing a stuck oil pan drain plug bolt christoj879 W126 S,SE,SEC,SEL,SD,SDL Class 6 05-26-2008 09:10 AM
oil pan bolt sizes? rahji W123 E,CE,D,CD,TD,TE Class 3 03-04-2007 01:09 PM

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