Head Bolt torque

Tiny
DRAGONMIST1034
  • MEMBER
  • 2002 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
Im replacing my head gasket I am needing to know the tork on the head bolts
Friday, September 17th, 2010 AT 6:49 PM

22 Replies

Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Doesnt specify if these are torque to yield, I recommend replacing them either way. This is the specs on torque

Cylinder Head Bolts-Long

First pass 63 Nm (46 ft lb)

Second pass 90 °

Cylinder Head Bolts-Short

First pass 58 Nm (43 ft lb)

Second pass 90 °
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Friday, September 17th, 2010 AT 7:11 PM
Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Also, torque from the center outwards. Start with the middle, and work your way torwards both ends evenly.
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Friday, September 17th, 2010 AT 7:13 PM
Tiny
AEF43
  • MEMBER
  • 3 POSTS
  • 1997 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 5,600 MILES
I recently asked for the torque ratio and sequence for the cylinder head bolts on a 1997 chevrolet cavalier 4 cylinder 2.2 liter engine. I did recieve the info but is that the sequence if I am standing right in front of the car looking at the head. I don't want to do it upside down if you know what I mean. Thank You!
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Friday, March 27th, 2020 AT 12:40 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Hit replay to question so you keep all in one place


https://www.2carpros.com/forum/automotive_pictures/99387_Graphic1_699.jpg

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Friday, March 27th, 2020 AT 12:40 PM (Merged)
Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
  • 2000 CHEVROLET CAVALIER
  • 147 MILES
Can I reuse head bolts.
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No, they are tty or torque to yields.

Replace with new

Roy
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
JAY4CARS1
  • MEMBER
  • 34 POSTS
ALWAYS replace the head bolts.
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
AEF43
  • MEMBER
  • 3 POSTS
  • 1997 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 56,000 MILES
I need the torque ration on the 10 cylinder head bolts on the vehicle specified above will you please help. Thank You!
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
TOOOMANYTOYS
  • MECHANIC
  • 513 POSTS
Tighten bolt 1 to 63 Nm (46 ft. lbs.) .
Tighten bolt 2 to58 Nm (43 ft. lbs.) .
Tighten bolt 3 to 58 Nm (43 ft. lbs.) .
Tighten bolt 4 to 63 Nm (46 ft. lbs.) .
Tighten bolt 5 to63 Nm (46 ft. lbs.) .
Tighten bolt 6 to58 Nm (43 ft. lbs.) .
Tighten bolt 7 to58 Nm (43 ft. lbs.) .
Tighten bolt 8 to 63 Nm (46 ft. lbs.) .
Tighten bolt 9 to63 Nm (46 ft. lbs.) .
Tighten bolt 10 (stud bolt) to 58 Nm (43 ft. lbs.) .
Use a torque angle meter and tighten all the cylinder head bolts an additional 90 ° in sequence


https://www.2carpros.com/forum/automotive_pictures/462613_head_1.jpg

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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
LEARNINGEVERYDAY
  • MEMBER
  • 2 POSTS
  • 1995 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 30,000 MILES
Hello!
Apparently the 95 2.2 L aluminum engine head was poorly designed causing a more often than not coolant leak; usually from the driver side, front corner of the head.

Over the year that I have owned it; the head gasket has leaked from the driver side, front corner of the head, about a teaspoon per day. Research would tell anyone to not buy this vehicle-but since I received it as a gift I don't mind putting some money into it. The vehicle has 50,000 Km, and still smells new inside.

Today though I noticed something new, while revving the motor a little there are what looks like air bubbles coming from the leak, along with the usual few drops of coolant.

I plan to change the head gasget myself, but until I do, would tightening the one external corner head bolt or all five external head bolts 1 mm (or to the specified torque?) Help in stopping the leak? I am weary of this, for many obvious reasons.

I sicerely thank you for any responses.
Roy
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Tightening down may help but the gasket is shot and the amount it will help will be hardly noticable.

Put on a new gasket.

Dont torque down that corner or youll warp the heads and no amoutn of gaskets will help.
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
LEARNINGEVERYDAY
  • MEMBER
  • 2 POSTS
Thank you Blackop555 for your fast response!
I appreciate my free question. If and when I use this site again I will be happy to give a donation.
Roy
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
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Glad to help.

Have a great day and I hope you dont hesitate to post back if you ever have another problem.
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
DANDINKINS
  • MEMBER
  • 7 POSTS
Just to let you know I bought a '95 brand new had the head gasket replaced under recall at 100,000 miles at 387,000 the head gasket still leaks, I just clean out the sparkplug about once a month put fresh antifreeze in an good to go.
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
TIGRILLO1
  • MEMBER
  • 1 POST
  • 1993 CHEVROLET CAVALIER
Engine Mechanical problem
1993 Chevy Cavalier 4 cyl All Wheel Drive Automatic

I have a '93 Chevrolet Cavalier 2 doors. But the cylinder head, I don't know how much pressure do the bolts have to have
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
BLACKOP555
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Check out your 02 sensors if you getting bad gas mileage by the way. When antifreeze burns in the exhaust it leaves a coating on the o2 sensors causing them to read lean, and resulting in the computer throwing more gas in the mixture to comphensate.
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

See pics for torques & sequence.

mark (mhpautos)


https://www.2carpros.com/forum/automotive_pictures/61395_Graphic_53.jpg




https://www.2carpros.com/forum/automotive_pictures/61395_torques_1.jpg

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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Check out your 02 sensors if you getting bad gas mileage by the way. When antifreeze burns in the exhaust it leaves a coating on the o2 sensors causing them to read lean, and resulting in the computer throwing more gas in the mixture to comphensate.
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
DANDINKINS
  • MEMBER
  • 7 POSTS
Mine just leaks on the outside of the engine but I have replaced the 02 sensers. Right now I need to replace two fuel injectors so I am not getting very good milleage, but normally I will be around 32 mpg in town 34-37 on the hwy. I dont care what anybody says this has been a great little car it is showing it milleage a bit but would not be afraid to drive it anywhere. I drive it for work now between 600 and 700 miles a week.
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Friday, March 27th, 2020 AT 12:41 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
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Good thing its leaking on the outside, that should affect performance at all!
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Friday, March 27th, 2020 AT 12:41 PM (Merged)

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