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  #1  
Old 03-05-2007, 12:50 PM
dagwoodp
 
Join Date: Mar 2007
Posts: 5
1997 E320 head gasket leaking

I just changed the tranny fliud and filter in my 97 e320, while I was under the crate turning the torque converter around to be drained, I noticed oil coming from around the head gasket. Can anyone shed some light on this, can the head bolts be retorqued, if so what is the torque specs and sequence? Or does the head gasket need replaced, can someone show me how to do it? Greasy garage in Ohio

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  #2  
Old 03-05-2007, 01:33 PM
Sportlines
 
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Location: Johnson City, TN
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If it's not coming from the valve cover gasket, then it is the head gasket. No you can't re-torque.

Yes, you will have to replace headgasket. It's obviously do able, but not a simple as many cars. Variable valve timing, etc.

Here's a link http://www.continentalimports.com/ser_ic100345.html

Steve
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  #3  
Old 03-05-2007, 02:05 PM
dagwoodp
 
Join Date: Mar 2007
Posts: 5
Thanks softconsult, any suggestions on where to but the gasket set?
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  #4  
Old 03-05-2007, 03:47 PM
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Quote:
Originally Posted by softconsult View Post
If it's not coming from the valve cover gasket, then it is the head gasket. No you can't re-torque.

Yes, you will have to replace headgasket. It's obviously do able, but not a simple as many cars. Variable valve timing, etc.

Here's a link http://www.continentalimports.com/ser_ic100345.html

Steve
Wouldn't a 97 have a M112 engines instead of the I6?
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  #5  
Old 03-05-2007, 03:53 PM
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Quote:
Originally Posted by 300B View Post
Wouldn't a 97 have a M112 engines instead of the I6?

No, 1996 and 1997 E320's have the inline-6 M104 engine.
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  #6  
Old 03-05-2007, 04:40 PM
david s poole
 
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do the valve cover gasket set before you condemn the head gasket.
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  #7  
Old 03-05-2007, 09:50 PM
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Quote:
Originally Posted by dagwoodp View Post
...can the head bolts be retorqued, if so what is the torque specs and sequence
As an FYI, the head bolts are designed to stretch (elongate) upon torquing via specifications. Therefore, re-torquing serves to only stretch the bolts further, which does nothing to fuse the head and block any tighter.

Because of the stretching properties, you should NEVER re-use the head bolts. You will need a new set if you plan to tackle this job.
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  #8  
Old 03-05-2007, 10:58 PM
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Quote:
Originally Posted by G-Benz View Post
Because of the stretching properties, you should NEVER re-use the head bolts. You will need a new set if you plan to tackle this job.
If the bolts are within spec, it is perfectly acceptable to reuse them. Just measure their length to verify.
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Old 03-05-2007, 11:01 PM
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Quote:
Originally Posted by dagwoodp View Post
Thanks softconsult, any suggestions on where to but the gasket set?

Buy the gasket set right here:

Click here for head gasket set
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  #10  
Old 03-06-2007, 08:26 AM
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Very common on M104 engines,


On a good note, the valve guides/seats hold up very well. Just R&R the gasket and do valve seals while the heads are off(easy).

it should only need a headgasket-nothing else unlike M103's.

Michael
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  #11  
Old 03-06-2007, 02:12 PM
dagwoodp
 
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where can I but the head bolts and valve guides
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  #12  
Old 03-06-2007, 04:40 PM
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Just click the Buy Parts button at the top of this page.
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  #13  
Old 03-07-2007, 08:21 AM
dagwoodp
 
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Thanks Sam, I am ordering the parts today and as soon as it gets warm up here, I'll get started.
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  #14  
Old 03-07-2007, 08:58 AM
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Make sure it is the head gasket, not just the front timing cover. Look for the front of the engine on the passenger side. If the leak starts there, very good chance it is the timing cover. It will be an external leak (a couple drops per night) and it should not affect the performance or longevity.

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