Pagoda SL Group

W113 Pagoda SL Group => General Discussion => Topic started by: saygold on August 14, 2005, 13:42:03

Title: Cylinder Head rebuild
Post by: saygold on August 14, 2005, 13:42:03

I just received my rebuilt cylinder head back from the machine shop (who replaced all of the valve guides, all of the inner valve springs and 3 on the outer springs and all intake valves, etc,).  

What is the best sealant for the cylinder head gasket, or is it not used?  The Haynes book does not cover it.  I vaguely remember in a previous comment, that sealants should not be used for the cylinder rebuild, but I cannot find it again.

Thanks in advance for your help.

Ken
1966 230SL (white w/blue top, euro)

Title: Re: Cylinder Head rebuild
Post by: enochbell on August 14, 2005, 14:00:46

No sealant, just a new gasket.  And be sure to read prior posts on torque values, sequence and intervals.  The most useful advice I got was to never retorque a CH bolt without first loosening it.  And, of course, loosen and then torque them one at a time.

Greg

'64 230sl, fully sorted out...ooops, spoke too soon

Title: Re: Cylinder Head rebuild
Post by: saygold on August 14, 2005, 14:47:18

Thanks!

Ken
66 230SL (euro)

Title: Re: Cylinder Head rebuild
Post by: ja17 on August 15, 2005, 05:27:56

Hello,
Mercedes suggest no sealant is needed. In later years Mercedes added sealant strips to their "new improved" head gaskets. This leads me to believe that improvement was needed.

 I always spray both sides of the head gasket with the copper gasket adhesive (Permatex). However once you place the head you are committed, no removal for one last check or you will tear the gasket.



Joe Alexander
Blacklick, Ohio