If you are asking how to do this, it is not easy, it is very complex and takes a long time. The big points: Drain the coolant, disconnect battery, take off the intake manifold, take of the exhaust manifold, remove the head, clean the head and check for warp and cracks, clean the block and remove all debris from cylinders, install gasket, put head back on, put manifolds back on, replace coolant, change oil, connect the battery. You may have issues with bolts that break or strip out the block, you should send the head in to be checked, the valves and springs should be checked and those seals replaced, you need special tools and reference materials.
SOURCE: 2003 saab 9-5 replaced head gasket because of overheat
disconnect computer and drive it ,if it drives ok then nothing wrong with it,after test drive put your hand held plug in gizmo under wheels and drive over it for what use it is.Skimmed head and new head bolts ?you must have more money than sense didnt you check it with a straight edge first??then clean it with a flat bed sander.head bolts ?? more expense .only expense should have been head gasket and antifreeze with a tube of instant gasket.Have you put all the little vac pipes back on that open the flaps on the air con and left the one off on the valve between the inlet and exhaust manifolds.Also did you remove and grind in the valves ??
SOURCE: replacement of a head gasket on 2.5 liter nissan altima 2002
frajogag: First off, be aware that these bolts are "torque to yield" bolts (streach bolts). What this means is that instead of torqueing the head bolts to a specific torque specification, they are torqued down to a set spec and then tightened by rotating the bolts a certain angle, like 90 degrees. and all of them are turned the same amount.
This means that the shanks of the bolts must be checked to make sure they are not too thin (or the bolt has already stretched beyond limits and is prone to snap if used)
Here is how you check the bolts. Measure the bolt using a micrometer, at the base, or within the first 13mm from the end where it threads in. Then go to about 10mm before the threads end heading toward the top of the bolt. There should not be more than a 0.23mm (.0091 inch) or less difference or the bolt should be discarded.
Torque the bolts down to 98.1Nm ( 72.ft lb)
Looking at the head from the side, so you are looking at the full length from side to side, I will number the head bolts in this fashion.
#1 & 2 are directly in front of you and in the center of the cylinder head crossing it width wise.
#3&4 are to the left of #1&2, / #5&6 are to the right of #1&2
#7&8 are to the left of #3&4 / #9$10 are to the right of #5&6
Now, you have the sequence.
After the initial pull, back off all the bolts in the same sequence and then retorque them to 36 Nm ( 28 ft lb)
Using a torque angle wrench or having the ability to accurately judge turning angles. Rotate (clockwise) to a 75 degree angle. do this to all the bolts using the sequence I had provided.
Rotate the bolts (clockwise) 75 degrees again on all bolts in the same sequence. The proceedure is complete!
SOURCE: replace a head gasket for a 2002 intrepid
go to the parts store and get a chiltons or a haynes manual
SOURCE: had to replace upper and lower intake gaskets
You may have had some water migrate into the cylinder through one of the intake runners causing a spark plug to foul. You will need to remove the spark plugs to see which one is fouled.
SOURCE: how i can change head gasket on chevy malibu 2002
Description below, but What is important is headgasket failure IS NOT the fault of the gasket, even though that is where the condition manifests...SOMETHING in steel is wrong, and at minimum warped and at worst: cracked. if you just change the gasket, you will fail again soon. Resurface the head you will have a reliable repair(prefer both because of slight compression change via mill cut of the head). this is the time to look at the valves, seats, guide looseness and valve seals.
So, the highlights of the project: you drain the coolant, remove all obstructing brackets (draw a map to get them back, or take lots of pics).
Then you pull the intake, valve cover(s), push rods and rockers, as needed, disconnect the exhaust manifold, or sometimes just the pipe, unbolt it and pull it off. there are more details, but all stuff needs to be disconnected in a manner that you can get it all back the exact same....
What is important
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