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Old 04-29-2009, 10:32 AM   #1
1994Saturn
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1994 SL2
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Happy DOHC Tightening sequence Valve Cover

A picture of the order of the tightening sequence for the Aluminum DOHC valve cover. This does not apply to the plastic valve covers... Tighten to 89 in-lbs..



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Old 04-29-2009, 10:42 AM   #2
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2000 SC2
Default Re: DOHC Tightening sequence Valve Cover

Yep.

http://www.differentracing.com/tech_.../camcover.html

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Old 04-29-2009, 10:44 AM   #3
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2000 SC2
Default Re: DOHC Tightening sequence Valve Cover

Quote:
Originally Posted by Low Saturn View Post
And thare actually is a sequence for the comosite covers as well, its the same as the aluminum ones. At least thats what the FSM says.

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Old 04-29-2009, 11:33 AM   #4
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1998 SC2
Default Re: DOHC Tightening sequence Valve Cover

This is the pattern for the 11 bolt composite cover.

Intake
9 5 6 10
3 1 2
8 4 7 11
Exhaust

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Old 10-29-2009, 06:44 PM   #5
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1996
Mad Help - Snapped Valve Cover Bolt

I replaced my leaking valve cover seals today, and discovered that the cause of the leak was due to the injector wiring harness being previously trapped under the valve cover seal! Unbelievable.

Unfortunately, I snapped the number 1 bolt before my torque wrench reached 89Lbs. It snapped clean off at the top of the head, so I can't grab it with a vise-grip. What is the best method for removing the remaining piece of the bolt?

1996 Saturn SW2 DOHC - Phenolic Valve Cover, Original Bolts.

Last edited by squeeker; 10-29-2009 at 06:50 PM.. Reason: Add info

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Old 10-29-2009, 10:14 PM   #6
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1998 SC2
Default Re: DOHC Tightening sequence Valve Cover

The torque spec is 89in-lb. That might be why it broke.

How far down in the head is the broken bolt?

You can drill a small hole in the end of it and use an easyout on it if you are good with a drill. The other approach is to cut a slot in the end of it with a Dremel tool and take it out with a small screw driver. If you cleaned out the holes before you installed the bolt it will come out easy. You might nick the head with the Dremel but you can patch it up with JB Weld, or a dab of RTV. Whatever you do not break off an easyout in the bolt as they are almost impossible to remove.

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Old 04-26-2011, 01:51 PM   #7
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1994 SC2
Default Re: DOHC Tightening sequence Valve Cover

Quote:
Originally Posted by OldNuc View Post
The torque spec is 89in-lb. That might be why it broke.

How far down in the head is the broken bolt?

You can drill a small hole in the end of it and use an easyout on it if you are good with a drill. The other approach is to cut a slot in the end of it with a Dremel tool and take it out with a small screw driver. If you cleaned out the holes before you installed the bolt it will come out easy. You might nick the head with the Dremel but you can patch it up with JB Weld, or a dab of RTV. Whatever you do not break off an easyout in the bolt as they are almost impossible to remove.

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I almost got tripped up by that damn Inch pound spec - i read the directions 3 times - luckily when putting the cover back my buddy caught it - close call

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