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 ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-20-2001, 03:55 PM
Gregg Bambo Jr
Guest
 
Posts: n/a
Before I consider the expense and time of an engine swap, be it M130, GM or Ford, for my sluggish 1963 M127, I am thinking about having my cam reground. Advice from a friend stated that automakers cam grinds are a compromise and his cars performance was dramatic after having his cam reground by an expert. My problem is that my MBZ maintenance manual completely skips over a discription of cam removal and installation. In looking at the manual pictures it appears that after setting the engine up at #1TDC, it should be a simple procedure of just disengaging the cam chain drive sprocket and unbolting the rocker arm platforms. Is that an oversimplification or should I have an expert with special tools remove the camshaft? Although I have personally overhauled a 1964 Jaguar 3.8 six cylinder engine, I have never worked on a Mercedes engine before.
Reply With Quote
  #2  
Old 04-20-2001, 06:01 PM
cth350's Avatar
Registered User
 
Join Date: Dec 2000
Location: Long Island, NY
Posts: 3,654
With the engine in the car, CAM removal for any '60s benz straight-6 is as follows:

1. Remove cylinder head.
2. Cam is now off.

Not fun, but that's how it has to be done. The cam pedistals are held on with head bolts. Too many of them have to be removed to get the towers off. You CAN remove the cams on the v8s because of the difference in bolt patterns.

With the engine out of the car, the cam can be slipped off backwards; which would be through the firewall and into the passenger with it in the car.

Contact Elgin cams (they have a website I think) for regrind info. They have lots of vintage MB experience.

However, I don't anybody that has reground a benz cam, just to get more out of a suggish engine. If a benz engine is being a dog, it's either because it IS a dog, or it is in need of major overhaul. Is your compression OK? Did you use copper or platinum plug? Perhaps your fuel delivery system is in major need of help? What about your ignition system?

There are three versions of that engine, the "standard", "low compression" and "USA spec". Knowing your engine number 127.xxx can identify it.

-CTH
Reply With Quote
  #3  
Old 04-20-2001, 06:35 PM
dlswnfrd
Guest
 
Posts: n/a
R&R Camshaft

Removing and replacing the cam on a 103 engine does not require removing the cylinderhead.
It is instructed very thoroughly in the M/B Engine Service Manual.
If you anticipate renewing the Timing Chain at this time, a chain splitter is required. These can be rented from M/B parts suppliers.
If your cam is reground the heat treated surfaces would be removed and both the cam and followers would wear very rapidly if the cam were not re heat treated and this would require a very complex process.
Your cam is either case hardened or nitrided.
To go in depth as to the processes involved in the manufacturing would be 1 BIG BOOK.
There are after market performance cams available and they don't come cheap, how about $5-600.00. and cam manufacturers will not warrantee the came without new camfollows(lifter)12 req'd, 24 for 4 valve engines.
The costs just keep climbing and for a driver the end results may not give you what you want.
The cam may require improved exhaust.
I think you can see where we are leading.
Happy Trails Beep Beep from Houston!!!
Don, El Cheapo
Reply With Quote
  #4  
Old 04-20-2001, 06:47 PM
cth350's Avatar
Registered User
 
Join Date: Dec 2000
Location: Long Island, NY
Posts: 3,654
Perhaps, but a 103 engine is not a '60s straight 6.

-CTH
Reply With Quote
  #5  
Old 04-20-2001, 07:50 PM
Gregg Bambo Jr
Guest
 
Posts: n/a
M127.984 engine cam

Thanks for the helpful advice gents. I'll make contact with Elgin Cams and find out what their grinding/finishing process is and whether they have a lobe grind that will help me any. My fuel injected 6 cylinder engine only has 85,000 miles on it and runs as smooth as a fine watch in level cruise. Again the annoyance is a lack of performance going up a grade requiring me to downshift, to keep up with the traffic. By the way "dswnfrd", the manual illustration for my engine shows the only surface contact that the cam lobe has, is making contact with the off center top of a rocker arm and the rocker arms tip makes contact with a spacer and adjustment assembly as opposed to any type of lobe contact with a lifter. Now I'm off to the garage to take a compression test.
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
replacing camshaft on an M103 dirtysocks Tech Help 17 02-23-2005 09:42 PM
Camshaft Seal Replacement rsmcmahon Tech Help 4 09-23-2004 11:20 AM
300E - Persistent camshaft seal leak - Opinions? Zeus Tech Help 17 09-14-2004 03:00 PM
need help! 240D camshaft codes? Brian_Wall Diesel Discussion 0 03-27-2002 02:10 AM
uprated 240D Camshaft Brian_Wall Tech Help 0 03-23-2002 04:04 PM



All times are GMT -4. The time now is 03:46 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page