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Neal
Neal, Auto Mechanic
Category: Oldsmobile
Satisfied Customers: 8349
Experience:  Experienced in most makes. Many years in family business.
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1998 oldsmobile silhouette: the head gasket..removing..garage

Resolved Question:

how do you change the head gasket on a 1998 oldsmobile silhouette with out droping the motor... I need all the info on removing all the parts to get to the head and then to put it back on.... I have garage experiance but this job is turning into more then I have the knowledge so I am expanding out and getting assistance if at all possible on this please help at all possible to get this job done...
Submitted: 5 years ago.
Category: Oldsmobile
Expert:  Neal replied 5 years ago.

I'm Neal and I am here to assist you. Only accept when you are happy with my assistance. If I can't help I will open your Question to other experts.

 

Here is the entire step by step procedure for both sides.

 

LEFT

 


REVISED CYLINDER HEAD BOLT INSTALLATION
(Vehicles with 3.1L VIN J, or 3.4L VIN E engines only.)

This article has been updated with TSB 02-06-01-003B, 4/15/08
This bulletin is being revised to include a Notice advising that the cylinder head bolts are NOT TO BE RE-USED. Please discard Corporate Bulletin Number 02-06-01-003A.

REMOVAL PROCEDURE

View & Print Options
07_gc98uvan2_6-125b.png



1. Perform an engine compression and leak down test.
2. Raise and support the vehicle.
3. Drain the engine coolant from the cooling system.
4. Drain the engine oil.
5. Lower the vehicle.
6. Remove the upper intake manifold.
7. Remove the lower intake manifold.
8. Remove the valve rocker arms and pushrods.
9. Remove the exhaust crossover pipe.
10. Remove the right engine mount strut bracket.
11. Remove the oil level indicator tube.
12. Remove the engine left side spark plug wires from the spark plugs.
13. Remove the engine left side spark plugs.
14. Remove the engine left side exhaust manifold.
15. Remove the engine left side cylinder head bolts.
16. Remove the engine left side cylinder head.

View & Print Options
08_gc98uvan2_6-126a.png



17. Remove the engine left side cylinder head gasket.
18. Clean the following areas:
^ The gasket sealing surfaces on the cylinder head, cylinder block, and intake manifolds.
^ The cylinder block bolt threads.
^ The cylinder head bolts.

19. Clean and inspect the cylinder head.

INSTALLATION PROCEDURE

^ TOOLS REQUIRED
- J 36660 Torque Angle Meter

View & Print Options
09_gc98uvan2_6-126b.png



1. Install a new engine left side cylinder head gasket.

View & Print Options
10_gc98uvan2_6-127a.png



2. Install the engine left side cylinder head over the locator pins and over the gasket.

Notice: This component uses torque-to-yield bolts. When servicing this component, do not re-use the bolts. New torque-to-yield bolts must be installed. Re-using used torque-to-yield bolts will not provide proper bolt torque and clamp load. Failure to install NEW torque-to-yield bolts may lead to engine damage.

View & Print Options
04_02-06-01-003020101-001.png



3. Install the NEW cylinder head bolts.
- Tighten the NEW cylinder head bolts to 60 Nm (44 lb ft) in the order shown. Use the J 36660-A torque angle meter in order to rotate the cylinder head bolts an additional 95 degrees

4. Install the engine left side exhaust manifold.
5. Install the engine left side spark plugs.
6. Install the engine left side spark plug wires to the spark plugs.
7. Install the oil level indicator tube.
8. Install the right engine mount strut bracket.
9. Install the exhaust crossover pipe.
10. Install the valve rocker arms and pushrods.
11. Install the lower intake manifold.
12. Install the upper intake manifold.
13. Fill the engine with new engine oil.
14. Fill the cooling system with engine coolant.

REVISED CYLINDER HEAD BOLT INSTALLATION
(Vehicles with 3.1L VIN J, or 3.4L VIN E engines only.)

This article has been updated with TSB 02-06-01-003B, 4/15/08
This bulletin is being revised to include a Notice advising that the cylinder head bolts are NOT TO BE RE-USED. Please discard Corporate Bulletin Number 02-06-01-003A.

REMOVAL PROCEDURE

View & Print Options
07_gc98uvan2_6-125b.png



1. Perform an engine compression and leak down test.
2. Raise and support the vehicle.
3. Drain the engine coolant from the cooling system.
4. Drain the engine oil.
5. Lower the vehicle.
6. Remove the upper intake manifold.
7. Remove the lower intake manifold.
8. Remove the valve rocker arms and pushrods.
9. Remove the exhaust crossover pipe.
10. Remove the right engine mount strut bracket.
11. Remove the oil level indicator tube.
12. Remove the engine left side spark plug wires from the spark plugs.
13. Remove the engine left side spark plugs.
14. Remove the engine left side exhaust manifold.
15. Remove the engine left side cylinder head bolts.
16. Remove the engine left side cylinder head.

View & Print Options
08_gc98uvan2_6-126a.png



17. Remove the engine left side cylinder head gasket.
18. Clean the following areas:
^ The gasket sealing surfaces on the cylinder head, cylinder block, and intake manifolds.
^ The cylinder block bolt threads.
^ The cylinder head bolts.

19. Clean and inspect the cylinder head.

INSTALLATION PROCEDURE

^ TOOLS REQUIRED
- J 36660 Torque Angle Meter

View & Print Options
09_gc98uvan2_6-126b.png



1. Install a new engine left side cylinder head gasket.

View & Print Options
10_gc98uvan2_6-127a.png



2. Install the engine left side cylinder head over the locator pins and over the gasket.

Notice: This component uses torque-to-yield bolts. When servicing this component, do not re-use the bolts. New torque-to-yield bolts must be installed. Re-using used torque-to-yield bolts will not provide proper bolt torque and clamp load. Failure to install NEW torque-to-yield bolts may lead to engine damage.

View & Print Options
04_02-06-01-003020101-001.png



3. Install the NEW cylinder head bolts.
- Tighten the NEW cylinder head bolts to 60 Nm (44 lb ft) in the order shown. Use the J 36660-A torque angle meter in order to rotate the cylinder head bolts an additional 95 degrees

4. Install the engine left side exhaust manifold.
5. Install the engine left side spark plugs.
6. Install the engine left side spark plug wires to the spark plugs.
7. Install the oil level indicator tube.
8. Install the right engine mount strut bracket.
9. Install the exhaust crossover pipe.
10. Install the valve rocker arms and pushrods.
11. Install the lower intake manifold.
12. Install the upper intake manifold.
13. Fill the engine with new engine oil.
14. Fill the cooling system with engine coolant.

RIGHT

 



REVISED CYLINDER HEAD BOLT INSTALLATION
(Vehicles with 3.1L VIN J, or 3.4L VIN E engines only.)

This article has been updated with TSB 02-06-01-003B, 4/15/08
This bulletin is being revised to include a Notice advising that the cylinder head bolts are NOT TO BE RE-USED. Please discard Corporate Bulletin Number 02-06-01-003A.

REMOVAL PROCEDURE
1. Perform an engine compression and leak down test.
2. Raise and support the vehicle.
3. Drain the engine coolant from the cooling system.
4. Drain the engine oil.
5. Lower the vehicle.
6. Remove the upper intake manifold.

View & Print Options
12_gc98uvan2_6-128a.png



7. Remove the lower intake manifold.
8. Remove the valve rocker arms and pushrods.
9. Remove the exhaust crossover pipe.
10. Remove the engine right side spark plug wires from the spark plugs.
11. Remove the engine right side exhaust manifold.
12. Remove the engine right side cylinder head bolts.
13. Remove the engine right side cylinder head.
14. Remove the engine right side spark plugs.

View & Print Options
13_gc98uvan2_6-128b.png



15. Remove the engine right side cylinder head gasket.
16. Clean the following areas:
^ The gasket sealing surfaces on the cylinder head, cylinder block, and intake manifolds.
^ The cylinder block bolt threads.
^ The cylinder head bolts.

17. Clean and inspect the cylinder head.

INSTALLATION PROCEDURE

^ TOOLS REQUIRED
- J 36660 Torque Angle Meter

View & Print Options
14_gc98uvan2_6-129a.png



1. Install a new engine right side cylinder head gasket.
2. Install the engine right side spark plugs.

View & Print Options
15_gc98uvan2_6-129b.png



3. Install the engine right side cylinder head over the locator pins and over the gasket.

Notice: This component uses torque-to-yield bolts. When servicing this component, do not re-use the bolts. New torque-to-yield bolts must be installed. Re-using used torque-to-yield bolts will not provide proper bolt torque and clamp load. Failure to install NEW torque-to-yield bolts may lead to engine damage.

View & Print Options
04_02-06-01-003020101-001.png



4. Install the NEW cylinder head bolts.
- Tighten the NEW cylinder head bolts to 60 Nm (44 lb ft) in the order shown. Use the J 36660-A torque angle meter in order to rotate the cylinder head bolts an additional 95 degrees.

5. Install the engine right side exhaust manifold.
6. Install the engine right side spark plug wires to the spark plugs.
7. Install the exhaust crossover pipe.
8. Install the pushrods and valve rocker arms.
9. Install the lower intake manifold.
10. Install the upper intake manifold.
11. Fill the engine with new engine oil.
12. Fill the cooling system with engine coolant.

Customer: replied 5 years ago.
its not allowing me to view all of the info right just has an x on the page when i click stuff
Customer: replied 5 years ago.
also i need the step by step in detail of how to remove this stuff to get down to the head... with out dropping the motor out...
Expert:  Neal replied 5 years ago.

If you cannot enlarge the images, let me know if there is a particular one that you need to see enlarged and I will send it another way. Try increasing the zoom on the page to see if that allows you to see them better.

 

That is the step by step, Is there a particular component you are talking about?

Customer: replied 5 years ago.
im in the motor and the timing cover looks like it hides a head bolt and theres no room to take it out.There is no room to take the timing cover off.
Expert:  Neal replied 5 years ago.
The timing cover does not need to come off. I'm not sure what is holding you up. Are you sure it is a head bolt?
Customer: replied 5 years ago.
There is like an L shaped ear that lays across the head. Its made of aluminum and it looks like it attaches to the timing chain cover. What is it and how I remove it.
Expert:  Neal replied 5 years ago.
I am not sure, is it one of the accessory brackets?
Neal and 3 other Oldsmobile Specialists are ready to help you
Customer: replied 5 years ago.
it sets under the alternator i dont have the motor tipped but it looks as if its right against the head it dosent look like it connects to any thing
Expert:  Neal replied 5 years ago.
Try removing the alternator to get a better look.
Customer: replied 5 years ago.
i have the alternator off the power steering intakes valvecover on back coil packs off also
Expert:  Neal replied 5 years ago.

I just can't picture what you are talking about.

 

I will opt out and see if another expert can help.

Customer: replied 5 years ago.

I just looked at a total exploded view of the motor they aren't showing it on there either... so youve busted your but on this so your still getting paid I certainally thank you for your time and effort I just cant seem to figure out why its their but isn't listed it makes no sense....

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