Anyone else hear of this? - Mercedes-Benz Forum

 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 04-02-2014, 05:34 AM Thread Starter
Premium Member
 
MadColonel67's Avatar
 
Date registered: Dec 2012
Vehicle: 2004 E500 4Matic Wagon, 1980 450SLC, '94 SL500
Location: Litchfield County, Connecticut
Posts: 164
Mentioned: 0 Post(s)
Quoted: 14 Post(s)
Premium Member
Garage
(Thread Starter)
Anyone else hear of this?

A fellow Finnie owner asked me if my '67 230S had this ground wire attached to the radiator. His technician explained its purpose:

Attached is the picture of the ground wire grounding the radiator. Klaus explained to me today that since the radiator is copper and the head is aluminum there is a current or a charge that builds up that will sear the pistons. The fix is to the ground as pictured and my radiator actually had a small clip that it attached to.

Should I be worried I don't have this?
Attached Thumbnails
Click image for larger version

Name:	ground wire.jpg
Views:	37
Size:	80.3 KB
ID:	867433  
MadColonel67 is online now  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 04-02-2014, 06:58 AM
BenzWorld Elite
 
rumb's Avatar
 
Date registered: Oct 2012
Vehicle: 1968 250S, 1991 300se, 1998 SL500, 1977 450SEL 6.9. Past MB's; 300SD, 300E, 300TE, 190E, ML420
Location: Colorado
Posts: 2,363
Mentioned: 6 Post(s)
Quoted: 427 Post(s)
Garage
uh, no.

there is corrosion between aluminum heads and iron block. good antifreeze slows this down.

sounds like the original engine ground is missing and this was the easiest place for a lazy mechanic to put back.
rumb is online now  
post #3 of 5 (permalink) Old 04-02-2014, 08:09 AM
Lifetime Premium Member
 
Scoot's Avatar
 
Date registered: Oct 2002
Vehicle: 1967 250 SL, 1963 220Sb
Location: Los Angeles / Altadena
Posts: 2,591
Mentioned: 3 Post(s)
Quoted: 103 Post(s)
Lifetime Premium Member
I think my 1968 280S W108 had a ground wire there. I never knew why.

Currently: 1967 250 SL, 1963 220Sb, 1965 300SE Lang, 1971 280SE parts car, 1972 Alfa GTV, 1965 Alfa Duetto, 1993 BMW R100R
Past: 1971 250 C, 1985 300 TD, 1967 250 S, 1968 280 S,1981 300 D, 1982 280CE, 3 Facel Vegas, Borgward Isabella Coupe, Alfa 2600 Sprint, Volvo P1900 (yes), numerous less interesting Volvos, ...
Scoot is offline  
post #4 of 5 (permalink) Old 04-02-2014, 08:59 AM
Premium Member
 
Date registered: Nov 2012
Posts: 1,241
Mentioned: 0 Post(s)
Quoted: 59 Post(s)
Premium Member
yes , all the older cars had this , this was to prevent electrical voltage to be present in cooling system that would result in galvanic ???? corrosion in engine block / head .the radiator has rubber strips on each side , this would insulate it from frame , but on the other hand the 6 bolts goes thru .
agillot is offline  
post #5 of 5 (permalink) Old 04-02-2014, 11:04 AM
BenzWorld Elite
 
flyboyike's Avatar
 
Date registered: May 2003
Vehicle: 2012 Focus SE
Location: Ormond Beach, FL
Posts: 7,699
Mentioned: 1 Post(s)
Quoted: 68 Post(s)
Quote:
Originally Posted by MadColonel67 View Post
A fellow Finnie owner asked me if my '67 230S had this ground wire attached to the radiator. His technician explained its purpose:

Attached is the picture of the ground wire grounding the radiator. Klaus explained to me today that since the radiator is copper and the head is aluminum there is a current or a charge that builds up that will sear the pistons. The fix is to the ground as pictured and my radiator actually had a small clip that it attached to.

Should I be worried I don't have this?
Never mind any of that, what's with the Moskvitch 412 in your avatar?

Felicita e un bicchiere di vino con un panino.
flyboyike is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > General Mercedes-Benz Forums > Vintage Mercedes-Benz

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



    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