1967 250sl fan shroud ? - Mercedes-Benz Forum

 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 07-09-2014, 10:03 PM Thread Starter
BenzWorld Elite
 
tdoriot's Avatar
 
Date registered: Jul 2011
Vehicle: 1993 600SL, 1973 450 SL,1982 380SL,1998 SLK 230, 1968 Firebird, 2001 Dodge Ram 4x4,2005 Ford Escape
Location: washougal Wa
Posts: 5,246
Mentioned: 7 Post(s)
Quoted: 414 Post(s)
(Thread Starter)
Post 1967 250sl fan shroud ?

Hey guys, I have a buddy that has a 67 250sl that gets close to hot in hot weather at slow speeds. I looked at it today and it has no fan shroud. I assume these had one. Anyone have one or at very minimum a picture of one? Alternate plan b is adding a electric fan on the front of the radiator. Since the problem only occurs at the extremes I assume abshroudwould solve the issue. Thanks in advance !
tdoriot is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 07-10-2014, 02:57 PM
Premium Member
 
Date registered: Nov 2012
Posts: 1,241
Mentioned: 0 Post(s)
Quoted: 59 Post(s)
Premium Member
dirty radiator ?? weak visco fan clutch , defective tstat , use a 75 deg num 116 200 00 15 behr .so , replace the tstat first , and dont go over 50/50 mix antifreeze .MB has the best one .
agillot is offline  
post #3 of 5 (permalink) Old 07-11-2014, 02:09 PM
GGR
BenzWorld Elite
 
Date registered: Apr 2006
Vehicle: W111 Coupe
Location: Washington DC
Posts: 1,205
Mentioned: 1 Post(s)
Quoted: 19 Post(s)
As agilot said. An easy and cheap way to clean a radiator is with muriatic acid. I pour it straight into the radiator, let it sit for half an hour and then rince well with the garden hose in reverse flow. I then repeat the procedure. Then I neutralize with baking soda. Google the procedure, it's quite well explained on the net.

Next thing is to check if the visco fan clutch works properly. when hot, at idle, try to stop the fan with a rolled newspaper. If it stops the clutch needs to be replaced.

Next is to replace the 6 or 8 blade propeller by a plastic 9 blades one. They are cheap on the net. Finally, if it still overheats, try to find a fan shroud that fits. The 230s didn't have one, the 280s had one, I don't know about the 250. If so it was specific to the 250 as the radiator dimensions of the 250 is different from both the 230 and the 280. If you can't find an original one, try many until you find one that fits satisfactorily.

Finally, but only in last resort, go with a pusher electric fan in the front. GO with a SPAL one. Google it, apparently they are the only one that really do the job as advertised. On a250 SL you can go with a 16' one, but it's tricky. You may end up with some clearance issues and the hood may not stand open properly anymore. If the car has AC there is not enough room for a fan in the front.

Don't replace the mechanical fan by an electric one. It will be worse.

Don't ask me how I know all this.

Good luck!
GGR is offline  
post #4 of 5 (permalink) Old 07-15-2014, 10:49 PM Thread Starter
BenzWorld Elite
 
tdoriot's Avatar
 
Date registered: Jul 2011
Vehicle: 1993 600SL, 1973 450 SL,1982 380SL,1998 SLK 230, 1968 Firebird, 2001 Dodge Ram 4x4,2005 Ford Escape
Location: washougal Wa
Posts: 5,246
Mentioned: 7 Post(s)
Quoted: 414 Post(s)
(Thread Starter)
Post

Great info. Thanks for the reply. I'll relay those tweaks to my buddy. If anybody has a shroud for a 250 or 280 shroud let me know
tdoriot is offline  
post #5 of 5 (permalink) Old 07-18-2014, 04:50 PM
BenzWorld Veteran
 
Date registered: Jan 2007
Posts: 750
Mentioned: 2 Post(s)
Quoted: 82 Post(s)
Fan shrouds appeared on late 230s, so a 250 should definitely have one. I would try SL-Tech (gernold@sltechw113.com) for a used one. They are a pain to install especially if the car has AC.

Good luck,

Chuck Taylor
Falls Church VA
1998 SL500
1959 220S
1970 280SL
ctaylor738 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