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Cylinder head specs

Tiny
FRVNK
  • MEMBER
  • 2013 MERCEDES BENZ C250
  • 150,000 MILES
So I’m currently in the middle of replacing my head gaskets and was hoping you could help me. I just need to know what sequence and NM I have to tighten the cylinder head bolts and the camshaft cover bolts as well? Also could you let me know what feeler gauge I should stop with for the cylinder head? Thanks a lot!
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Monday, March 9th, 2020 AT 11:07 PM

7 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

I'm not sure what you are wanting to do with the feeler gauge, but all of the other information I have included in the diagrams down below for you. I hope that this helps.

Thanks,
Alex
2CarPros
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Thursday, March 12th, 2020 AT 1:33 AM
Tiny
FRVNK
  • MEMBER
  • 20 POSTS
Thanks don’t need feeler gauge anymore. I took the heads to the machine shop. Also my car is the M271.8 engine can I also get the order in which I should tighten please?
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Thursday, March 12th, 2020 AT 11:15 PM
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello again,

Tightening head bolts is pretty easy. Start in the middle and tighten in the stages provided earlier, switching sides as you go, and work outwards. The basic idea here is get the middle bolts first like you are straightening a bedspread. Work from the middle out to flatten as you go. I hope that this helps.

Thanks,
Alex
2CarPros
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Friday, March 13th, 2020 AT 2:48 AM
Tiny
FRVNK
  • MEMBER
  • 20 POSTS
So I just need to tighten at 45 NM then tighten 90 degrees and then another 90 degrees is that correct? Also I see its for 271 engine not 271.8 is that going to be a problem or are they the same? Thanks for the help I really appreciate it.
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Friday, March 13th, 2020 AT 6:21 AM
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello again,

Sorry about that. In the diagrams down below I have included the instructions for the removal and installation of the cylinder head for the 271.8 engine for your vehicle. I hope this helps.

Thanks,
Alex
2CarPros
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Friday, March 13th, 2020 AT 1:50 PM
Tiny
FRVNK
  • MEMBER
  • 20 POSTS
Also there are three bolts connecting turbo to my muffler pipe. Can I get torque spec for that too? And last thing can I also get torque spec for the exhaust manifold and intake manifold? Thank you so much.
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Sunday, March 15th, 2020 AT 11:22 AM
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

Here is the information that you requested in the diagrams down below. I hope that this helps.

Thanks,
Alex
2CarPros
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Sunday, March 15th, 2020 AT 9:01 PM

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