Timing Chain Help / Advice needed - Mercedes-Benz Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 03-08-2012, 03:08 PM Thread Starter
BenzWorld Junior Member
 
Date registered: Feb 2012
Posts: 11
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Timing Chain Help / Advice needed

I apologize for the novel but I am trying to provide as much info as possible. Thanks to anyone who actually reads and can provide help. I am working on a 1980 500 SEL and doing the timing chain.

When I removed the valve covers I noticed that on both inboard chain guides were completely missing. The chain had obviously been grinding the pins because they had deep grooves worn in them. Who knows how long the motor has been like this!! Not only were the pins worn, but also the timing cover and the side of the cylinder head had grooves from the chain rubbing against it.

I decided to pull the entire front of the motor apart so I could see exactly what was going in, and in case the guides had somehow fallen down in the TC I wanted to extract them.

This morning I was actually able to completely remove the timing cover but I had to remove it in a manner that I don't believe I'll be able to reassemble and have the oil pump chain installed properly. How on earth am I supposed to do that? In order to remove the timing cover I also had to cut the timing chain too because it really wanted to pull the chain sprocket off the crankshaft while I was pulling the TC

Am I supposed to put the timing chain all in, and then break the oil pump chain and reinstall it after putting the cover back on?

Also, have you guys had good luck with using the O rings to keep a seal? I'm inclined to use RTV but I don't want to do something stupid.

Thanks!
TBIAgent69 is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 03-08-2012, 03:59 PM
BenzWorld Senior Member
 
Date registered: Sep 2007
Vehicle: 90 420SEL 240,000 miles strong
Location: Indianapolis,IN
Posts: 557
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Send a message via AIM to RickASolis
Wow, go play the lottery, cause your the luckiest man alive right now

Get your timing chain and rails done like you should. I would know more than anyone!! The noise it makes when it goes will make you cry.
RickASolis is offline  
post #3 of 14 (permalink) Old 03-08-2012, 04:06 PM
Lifetime Premium Member
 
Date registered: Apr 2006
Vehicle: 1983 380SL, 2000 S430, 1991 420SEL (retired) - RHD
Location: Gold Coast Australia
Posts: 4,925
Mentioned: 5 Post(s)
Quoted: 386 Post(s)
Lifetime Premium Member
Do a search, there's heaps of stuff including a "how to" video reference.
Aussiemerc is offline  
Sponsored Links
Advertisement
 
post #4 of 14 (permalink) Old 03-09-2012, 02:17 AM Thread Starter
BenzWorld Junior Member
 
Date registered: Feb 2012
Posts: 11
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Quote:
Originally Posted by Aussiemerc View Post
Do a search, there's heaps of stuff including a "how to" video reference.
Lol I tried. Can you give me specific key words to look for because Timing Cover, and Timing chain brought up a bunch of threads about parts lists or unrelated things.

I tried searching on Youtube too but I must be looking for the wrong thing.

BTW, there were absolutely NO broken chain guides in the motor. It must have just been broken off manually and never replaced!!
TBIAgent69 is offline  
post #5 of 14 (permalink) Old 03-09-2012, 07:22 AM
BenzWorld Member
 
LASwede's Avatar
 
Date registered: Feb 2004
Vehicle: '02 E320 Wagon, '13 Chevrolet Volt
Location: Los Angeles, CA
Posts: 201
Mentioned: 0 Post(s)
Quoted: 3 Post(s)
I think pieces fall down in the oil pan if they do not get stuck inside the engine...
I have also heard that you can tie the new chain onto the old one and and turn the engine, to easier get the new chain on. If you already took it off, it is another matter.

Last edited by LASwede; 03-09-2012 at 09:36 AM.
LASwede is offline  
post #6 of 14 (permalink) Old 03-09-2012, 08:37 AM
BenzWorld Member
 
Date registered: Aug 2011
Vehicle: 1985 300E US Champagne, 1978 280SE Euro Milan Brown Metallic, Gen1 1985 500 SEC Euro Paget Red
Location: Evanston, IL
Posts: 105
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Have you pulled the oil pan and not found any bits of guide rail? That's bizarre.

I've followed this tutorial here:
450 - M117 Timing Chain Replacement

But it doesn't discuss removing the front cover or changing the lower guide rails.
The last time I removed and replaced guide rails I did it with a stiff wire, bent to shape and carefully slotted them in, then pushed the pins in carefully until they were seated. It was much easier than I expected. However with the front cover off, you can put the guide rail pins and guide rails in first, then just install the cover over them. This is how it was done at the factory. I always wondered why they used pins rather than bolts, until I saw a video of an AMG 6.3 being assembled on the internets.


Most RTV (Room Temp. Vulcanized) silicone adhesives are bad for aluminum and will cause corrosion around bolts over time.
I recommend not using RTV silicones on aluminum engines. They're all corrosive to some extent, especially where dissimilar metals meet.
toxonix is offline  
post #7 of 14 (permalink) Old 03-09-2012, 08:39 AM
BenzWorld Member
 
Date registered: Aug 2011
Vehicle: 1985 300E US Champagne, 1978 280SE Euro Milan Brown Metallic, Gen1 1985 500 SEC Euro Paget Red
Location: Evanston, IL
Posts: 105
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Also, I'm not sure why the crank sprocket would want to come off with the TC, sorry.

Last edited by toxonix; 03-09-2012 at 08:48 AM.
toxonix is offline  
post #8 of 14 (permalink) Old 03-09-2012, 12:15 PM
Lifetime Premium Member
 
Date registered: Apr 2006
Vehicle: 1983 380SL, 2000 S430, 1991 420SEL (retired) - RHD
Location: Gold Coast Australia
Posts: 4,925
Mentioned: 5 Post(s)
Quoted: 386 Post(s)
Lifetime Premium Member
Smile Video/photos of chain replacement

[QUOTE=TBIAgent69;5151244]Lol I tried. Can you give me specific key words to look for because Timing Cover, and Timing chain brought up a bunch of threads about parts lists or unrelated things.



I'll find it because I need it myself soon. It may be in the BenzWorld 107 forum -Look in the EGV107 and go to timing chain. The trouble is there is so much to look at. I'd do it now but I'm off to golf- first nice fine day in a while so the Benz will have to wait!
Aussiemerc is offline  
post #9 of 14 (permalink) Old 03-10-2012, 03:59 PM
Lifetime Premium Member
 
Date registered: Apr 2006
Vehicle: 1983 380SL, 2000 S430, 1991 420SEL (retired) - RHD
Location: Gold Coast Australia
Posts: 4,925
Mentioned: 5 Post(s)
Quoted: 386 Post(s)
Lifetime Premium Member
Found one:
PeachPartsWiki: M116/117 Timing Chain replacement- I think it's


PeachPartsWiki: M116/117 Timing Chain Replacement
Aussiemerc is offline  
post #10 of 14 (permalink) Old 03-10-2012, 04:38 PM
BenzWorld Elite
 
mramay's Avatar
 
Date registered: Feb 2005
Vehicle: Two '87 570SECs, one '87 560SEL
Location: Las Vegas, NV
Posts: 4,412
Mentioned: 6 Post(s)
Quoted: 256 Post(s)
I had a portion of a broken guide get stuck about half way down and took me two (2) days to get that #$%^&* POS chunk out of the engine. With the oil pan off, I could look up and *just* see the thing. If you have a part of a guide up top, the rest is in the engine.

Blasphemous Mike
US '87 560SEC with Euro headlights, clear markers, H&Rs, 17x8.5/Nitto's, ATE slotted rotors with ceramic pads, BergWerks FGS, 3.07 Limited Slip. '87 560SEL with Euro Headlights, lowered, 235/40/17's
mramay is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > Mercedes-Benz Sedan Forums > W126 S,SE,SEC,SEL,SD,SDL 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:
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:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
'73 450SL timing chain replacement advice needed. rcrvine Vintage Mercedes-Benz 7 07-10-2011 05:41 PM
Help needed with timing chain chiro W201 190-Class 4 09-28-2010 02:18 PM
Timing chain help needed sat1962 W126 S,SE,SEC,SEL,SD,SDL Class 18 12-24-2009 01:10 PM
Timing Chain Advice, Help Needed streetrules W123 E,CE,D,CD,TD,TE Class 0 07-16-2005 12:14 AM
parts needed to fix timing chain ibrahim83 W126 S,SE,SEC,SEL,SD,SDL Class 5 10-09-2003 06:16 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