Bolts stripped need to know replacement size.
Feb 7, 2021 at 8:18 AM
What size thread and size are the thermostat housing bolt?
2004 OLDSMOBILE SILHOUETTE
RENEE ROGERS
- MEMBER
- 1 POST
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good morning,
The bolts are 8 mm 1.25 pitch about 1 1/4 inches long.
https://www.2carpros.com/articles/replace-thermostat
https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars
Roy
Thermostat Replacement
Removal Procedure
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1. Remove the air cleaner and duct assembly.
2. Drain the coolant until the coolant level is below the thermostat.
3. Remove the crossover exhaust pipe.
4. Remove the radiator hose from the thermostat housing.
5. Remove the thermostat housing bolts and clean any sealer from the bolt threads.
6. Remove the thermostat housing and gasket.
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7. Remove the thermostat.
8. Clean the mating surfaces.
The bolts are 8 mm 1.25 pitch about 1 1/4 inches long.
https://www.2carpros.com/articles/replace-thermostat
https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars
Roy
Thermostat Replacement
Removal Procedure
imageOpen In New TabZoom/Print
1. Remove the air cleaner and duct assembly.
2. Drain the coolant until the coolant level is below the thermostat.
3. Remove the crossover exhaust pipe.
4. Remove the radiator hose from the thermostat housing.
5. Remove the thermostat housing bolts and clean any sealer from the bolt threads.
6. Remove the thermostat housing and gasket.
imageOpen In New TabZoom/Print
7. Remove the thermostat.
8. Clean the mating surfaces.
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Professional Diagram for 2CarPros Members
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Feb 7, 2021 at 8:26 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.