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Tim's Auto Repair
Tim's Auto Repair, mechanic
Category: Chevy
Satisfied Customers: 13014
Experience:  Have owned a repair shop for 25 yrs.
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Chevrolet Silverado 2500 LS 4x4 6.0L gas engine head gasket

Resolved Question:

6.0L gas engine head gasket replacement. Oil leaking into coolant system
Submitted: 3 years ago.
Category: Chevy
Expert:  Tim's Auto Repair replied 3 years ago.

hi

this should help you..please print..this will take about 12.1 hours

thanks

Please ACCEPT my answer so I can get credit for my work.i don't receive commission unless you do ..I'm not always going to be giving you good news,so please don't let this stand in the way of you accepting my answer.it does not cost you more money.we will still be able to communicate.. Bonuses and positive feedback are appreciated!if you are not satisfied with my answer,please do not leave bad feed back,i will gladly opt out and let another expert handle the question.if i have sent any diagrams,please print them.they will only stay on here for an hour or so.PLEASE ASK IF YOU NEED MORE HELP

 

Cylinder Head Replacement - Left

Cylinder Head Replacement - Left

Tools Required

  • J36660-A Torque Angle Meter
  • J42385-200 Thread Repair Kit

Removal Procedure

  1. Remove the generator bracket.
  2. Remove the coolant air bleed pipe.
  3. Remove the left exhaust manifold.
  4. Remove the pushrods.

 



 

Important:The cylinder head bolts are NOT reusable.
  1. Remove the cylinder head bolts.

 



 

Notice:After removal, place the cylinder head on two wood blocks to prevent damage.
  1. Remove the cylinder head.

 



 

  1. Remove and discard he cylinder head gasket
  2. If required, clean and inspect the cylinder head.

Installation Procedure



Caution: Wear safety glasses in order to avoid eye damage.

 

Notice:Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.

Important:

  • Do not reuse the cylinder head bolts. Install NEW cylinder head bolts during assembly.
  • Do not use any type of sealant on the cylinder head gasket(unless specified).
  • The cylinder head gaskets must be installed in the proper direction and position.
  1. Clean the engine block cylinder head bolt holes (if required). Thread repair tool J42385-107, found in J42385-200 may be used to clean the threads of old threadlocking material.
  2. Use spray cleaner GM P/N 12346139, P/N 12377981 (Canadian P/N 10953463j, or equivalent into the hole.
  3. Clean the cylinder head bolt holes with compressed air.
  4. Check the cylinder head locating pins for proper installation, location (a) 8.3 mm (0.327 inch).

 



 

  1. When properly installed, with FRONT on the left side, the tab on the cylinder head gasket should be located left of center or closer to the front of the engine.

 



 

  1. Install the NEW cylinder head gasket.

 



 

  1. Install the cylinder head.

 



 

  1. Install NEW cylinder head bolts (1, 2, 3).

 



 

:
  1. Tighten the cylinder head bolts.
9.1.Tighten the M11 cylinder head bolts a first pass in sequence to 30 Nm (22 ft. lbs.).
9.2.Tighten the M11 cylinder head bolts a second pass in sequence to 90 degrees using J36660-A.
9.3.Tighten the M11 cylinder head bolts (1, 2, 3, 4, 5, 6, 7, 8) to 90 degrees and the M11 cylinder head bolts (9 and 10) to 50 degrees a final pass in sequence using J36660-A.
9.4.Tighten the M8 cylinder head bolts (11, 12, 13, 14, 15) to 30 Nm (22 ft. lbs.) . Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.
  1. Install the pushrods.
  2. Install the left exhaust manifold.
  3. Install the coolant air bleed pipe.
  4. Install the generator bracket.
Cylinder Head Replacement - Right

Cylinder Head Replacement- Right

Tools Required

  • J36660-A Torque Angle Meter
  • J42385-200 Thread Repair Kit

Removal Procedure



 

  1. Remove the oil level indicator.
  2. Remove the coolant air bleed pipe.
  3. Remove the right exhaust manifold.
  4. Remove the pushrods.
Important:The cylinder head bolts are NOT reusable.
  1. Remove the cylinder head bolts (1, 2, 3).

 



 

Notice:After removal, place the cylinder head on two wood blocks to prevent damage.
  1. Remove the cylinder head.

 



 

  1. Remove and discard the cylinder head gasket.
  2. If required, clean and inspect the cylinder head.

Installation Procedure



Caution: Wear safety glasses in order to avoid eye damage.

 

Notice:Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.

Important:

  • Do not reuse the cylinder head bolts. Install NEW cylinder head bolts during assembly.
  • Do not use any type of sealant on the cylinder head gasket (unless specified).
  • The cylinder head gaskets must be installed in the proper direction and position.
  1. Clean the engine block cylinder head bolt stoles (if required). Thread repair tool J42385-107 found in J42385-200 may be used to clean the threads of old threadlocking material.
  2. Use spray cleaner GM P/N 12346139 P/N 12377981 (Canadian P/N 10953463), or equivalent into the hole.
  3. Clean the cylinder head bolt holes with compressed air.
  4. Check the cylinder head locating pins for proper installation location (a) 8.3 mm (0.327 inch).

 



 

  1. When properly installed with FRONT on the right side the tab on the cylinder head gasket should be located right of center or closer to the front of the engine.

 



 

  1. Install the NEW cylinder head gasket.

 



 

  1. Install the cylinder head.

 



 

  1. Install the NEW cylinder head bolts.

 



 

:
  1. Tighten the cylinder head bolts.
9.1.Tighten the M11 cylinder head bolts a first pass in sequence to 30 Nm (22 ft. lbs.).
9.2.Tighten the M11 cylinder head bolts a second pass in sequence to 90 degrees using J36660-A.
9.3.Tighten the M11 cylinder head bolts (1, 2, 3, 4, 5, 6, 7,) to 90 degrees and the M11 cylinder head bolts (9 and 10) to 50 degrees a final pass in sequence using J36660-A.
9.4.Tighten the M8 cylinder head bolts (11,12,13,14,15) to 30 Nm (22 ft. lbs.).
Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.
  1. Install the pushrods.
  2. Install the right exhaust manifold
  3. Install the coolant air bleed pipe.
  4. Install the oil level indicator.

Please ACCEPT my answer so I can get credit for my work.i don't receive commission unless you do ..I'm not always going to be giving you good news,so please don't let this stand in the way of you accepting my answer.it does not cost you more money.we will still be able to communicate.. Bonuses and positive feedback are appreciated!if you are not satisfied with my answer,please do not leave bad feed back,i will gladly opt out and let another expert handle the question.if i have sent any diagrams,please print them.they will only stay on here for an hour or so.PLEASE ASK IF YOU NEED MORE HELP

Tim's Auto Repair, mechanic
Category: Chevy
Satisfied Customers: 13014
Experience: Have owned a repair shop for 25 yrs.
Tim's Auto Repair and 11 other Chevy Specialists are ready to help you

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