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 > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-18-2021, 11:39 AM
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,510
M120 Oil Leaking all over Alternator

I have an M120 engine out of a 1996 SL600. Since this engine is installed on a 107 its difficult to see where its coming from and removal of the alternator requires removal of the front subframe. So I would like to get some ideas of what to look for. Are there any common leaks that would originate from above the alternator. I'm thinking the right valve cover gasket might be it, but its a lot of work for a guess.

__________________
To see my 129 parts for sale visit:
http://stores.ebay.com/The-Mercedes-SL-Store
John Roncallo
Reply With Quote
  #2  
Old 02-18-2021, 08:12 PM
Registered User
 
Join Date: Oct 2004
Posts: 4,153
The upper timing cover worm seal, and the timing chain tensioner seal ring.
__________________

90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE
104.980
Milled & ported head, 10.3:1 compression
197 intake cam w/20 advancer
Tuned CIS ECU
4 ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff
Reply With Quote
  #3  
Old 02-18-2021, 09:58 PM
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,510
Quote:
Originally Posted by duxthe1 View Post
The upper timing cover worm seal, and the timing chain tensioner seal ring.
Thanks

I understand the M120 timing cover worm seal is like the 103/104. Yes they were a PIA. Tomorrow I will try pulling the alternator for a look. It would be nice if it was a tensioner ring.
__________________
To see my 129 parts for sale visit:
http://stores.ebay.com/The-Mercedes-SL-Store
John Roncallo
Reply With Quote
  #4  
Old 02-18-2021, 10:42 PM
Registered User
 
Join Date: Oct 2004
Posts: 4,153
The seals are very similar to the 104, but its exponentially more of a PIA. I've got one in the shop now that will probably get done next week.
__________________

90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE
104.980
Milled & ported head, 10.3:1 compression
197 intake cam w/20 advancer
Tuned CIS ECU
4 ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff
Reply With Quote
  #5  
Old 02-19-2021, 01:14 AM
Registered User
 
Join Date: Aug 2019
Posts: 949
You can cut a thin piece of aluminum and place it over the seal and then slide the top timing cover over the seal. Oiled plate between the timing cover and the seal will make the job easy and will ensure that the seal doesn't get pushed in. Then you just slide the plate out

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 04:46 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2023, 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