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 > Vintage Mercedes Forum

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-07-2013, 04:15 PM
jsiefert
 
Join Date: Jul 2013
Location: Walnut Creek, CA
Posts: 2
1968 250S Head gasket replacement

Good day all,

I recently acquired a 1968 250S with, I believe, the M114 engine. It recently swallowed a whole bunch of coolant and I am working on pulling the head to investigate the situation with the head and gasket.

I'm almost ready to pull the head, however, I can not for the live of me get the exhaust pipes out of the manifold. Maybe I need to keep working it, but I've lots of penetrant and heat on it, but it won't budge. They have been together a long time.

Any suggestions? Do I need to just keep battling?

Any suggestions would be appreciated.

Reply With Quote
  #2  
Old 07-08-2013, 03:52 PM
Registered User
 
Join Date: Apr 2013
Location: Miami, FL
Posts: 84
Is it possible to separate the manifold from the head, and take the head out? Then you will have more space to tackle and twist the manifold. Keep lubricating the manifold joints and nuts in the meantime.
Reply With Quote
  #3  
Old 07-08-2013, 03:56 PM
Regular User
 
Join Date: Nov 2002
Location: Flyover State
Posts: 1,364
Had difficulty with some seat hardware once, really stuck after 50 years. Definitely different animals but the solution was an impact. It was a screw head with regular, not philips head. I used all the usual tricks and finally after serious frustration had an idea to use a center punch on the outside most edge of the slot and strike it with a hammer in the direction I wanted to go. Finally it gave.

Maybe drill a small pit in the top of the bolt you want to budge and use the shock from a punch and hammer to "crack" it.

Good luck
__________________
63 220S W111
76 300D W115
2013 VW JSW TDI M6

previously-
73 280 SEL 4.5
86 300E 5 speed
2010 VW Jetta TDI M6
Reply With Quote
  #4  
Old 07-09-2013, 08:26 AM
Registered User
 
Join Date: Sep 2004
Location: Chapel Hill, NC
Posts: 161
There should be enough room to pull the manifolds off the head and to the side so you can remove the head. If it is really tight you can remove the bolt for the motor mount and raise the right side of the engine a little. I usually leave the manifolds in place when I pull heads. It is easier to pull the manifold off the header pipe after the head is off. Then you can put in new donuts and bolts to get a nice seal after the head is back on.
Reply With Quote
  #5  
Old 07-09-2013, 10:31 AM
Registered User
 
Join Date: Sep 2004
Location: Chapel Hill, NC
Posts: 161
One more thing. You will probably have to remove the bracket from the exhaust to the transmission to be able to move the exhaust enough to get it out of the way.
Reply With Quote
  #6  
Old 07-09-2013, 04:49 PM
jsiefert
 
Join Date: Jul 2013
Location: Walnut Creek, CA
Posts: 2
Thanks for the follow up. I suspect the best advice will be to leave the exhaust alone and seperate the intake and exhaust from the head. It's all going to have to come apart at some point anyway.

Thanks everybody.

Jim.

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 09:58 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, 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