How can broken Rocker Shaft Spring Kit and Valve Stem Oil Seal be replaced without removing the cylinder head on Chevrolet Corvette?

Well-worn valve springs and valve stem seats that do not seat properly can be repaired with the head off and often do not need to be removed, but require two special tools and compressed-air source. Start by pulling out the spark plug and the valve cover, crank the engine in order to align the number one piston on the compression stroke. Then, you have to take out the rocker arms which are used for the number one cylinder and fit an adapter to the spark plug hole and attach a hose to it for an air compressor from a compressed air supply. Use compressed air to close the valves and make them stay in position; use shop rags to block all the spaces of the cylinder head round the valves to ensure that no part and tool fall in the engine. Simply strike lightly on top of the valve spring retainer to remove the check between the valve keeper and the spring retainer, then make use of a valve spring compressor to compress the spring and then remove the keeper using a small needle nose pliers or magnet. Pull out the valve spring and the retainer by pulling carefully to prevent the valve from being struck by the falling spring and bending. Take off the old valve stem seals and notice that the intake is always different from the exhaust, and put a rubber band or a piece of tape around the top of the valve stem so that it does not fall into the combustion chamber when you release the air pressure. Check the condition of the valve stem , it should not stick in the guide. Apply air pressure to keep the valve shut; replace the valve stem seals, the spring and retainer. Slightly compress the valve spring assembly to fit in the keepers and use a tiny amount of grease to fix them if required. Subsequently, if the keepers are comfortably seated, shut off the line of air and take off the adapter from the surface of the spark plug. Perform same procedure on the rest of cylinders with regards to firing order sequence; then install the rocker arm assembly and the valve covers. Last, engage the engine and look for traces of oil or strange sounds and rev the engine for not less than five minutes.

Genuine Chevrolet Corvette Valve Stem Oil Seal

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15 Valve Stem Oil Seals found

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Chevrolet Corvette Seal Kit,Exhaust Valve Stem Oil
Part Number: 12482062
$41.81 MSRP: $69.18
You Save: $27.37 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL KIT, Engine Valve; Valve Seal, Valve Spring
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2013 Chevrolet Corvette | 2 DOOR, 2 DOOR SPECIAL, CONVERTIBLE, NOTCHBACK | 8 Cyl 5.7L, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 7.0L
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Chevrolet Corvette Seal Kit,Intake Valve Stem Oil
Part Number: 12482063
$38.13 MSRP: $63.11
You Save: $24.98 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL KIT, Engine Valve; Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2013 Chevrolet Corvette | 2 DOOR, 2 DOOR SPECIAL, CONVERTIBLE, NOTCHBACK | 8 Cyl 5.7L, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 7.0L
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Chevrolet Corvette Seal, Exh Vlv Stem Oil
Part Number: 12689006
$5.23 MSRP: $8.65
You Save: $3.42 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Seal
- Replaces: 12645472
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2024 Chevrolet Corvette | 2 DOOR, 2 DOOR CONVERTIBLE, LT2 AWD CONVERTIBLE, LT2 AWD COUPE, Stingray Convertible, STINGRAY CONVERTIBLE, Stingray Coupe, STINGRAY COUPE, Z06 2 DOOR CONVERTIBLE, Z06 2 DOOR PLAINBACK | 8 Cyl 6.2L
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Chevrolet Corvette Seal, Int Vlv Stem Oil
Part Number: 12689007
$6.14 MSRP: $9.46
You Save: $3.32 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Seal
- Replaces: 12645473
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2024 Chevrolet Corvette | 2 DOOR, 2 DOOR CONVERTIBLE, LT2 AWD CONVERTIBLE, LT2 AWD COUPE, Stingray Convertible, STINGRAY CONVERTIBLE, Stingray Coupe, STINGRAY COUPE, Z06 2 DOOR CONVERTIBLE, Z06 2 DOOR PLAINBACK | 8 Cyl 6.2L
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Chevrolet Corvette Seal,Valve Stem Oil
Part Number: 10212810
$5.18 MSRP: $7.97
You Save: $2.79 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Valve; Valve Seal, Valve Seal Kit
- Replaces: 00460483, 460483
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Chevrolet Corvette | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
- 1985-1991 Chevrolet Corvette | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
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Chevrolet Corvette Seal Kit,Exhaust Valve Stem Oil
Part Number: 12457652
$18.08 MSRP: $29.92
You Save: $11.84 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL KIT, Engine Valve; Valve Seal
- Replaces: 12560189
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997-2001 Chevrolet Corvette | 2 DOOR, CONVERTIBLE, NOTCHBACK | 8 Cyl 5.7L
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Chevrolet Corvette Seal Kit,Valve Stem Oil
Part Number: 12533586
$24.27 MSRP: $37.35
You Save: $13.08 (36%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL KIT, Engine Valve; Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001 Chevrolet Corvette | 2 DOOR, CONVERTIBLE, NOTCHBACK | 8 Cyl 5.7L
- 1997-1998 Chevrolet Corvette | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
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Chevrolet Corvette Seal,Valve Stem Oil
Part Number: 10214034
$1.77 MSRP: $2.72
You Save: $0.95 (35%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Valve; Seal Ring, Valve Seal, Valve Seal O-Ring
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1991 Chevrolet Corvette | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
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Chevrolet Corvette SEAL ASM-EXH VLV STEM OIL
Part Number: 12668541
$4.89 MSRP: $8.10
You Save: $3.21 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023-2024 Chevrolet Corvette | LT6 CONVERTIBLE, LT6 COUPE | 8 Cyl 5.5L
View related parts
Chevrolet Corvette SEAL ASM-INT VLV STEM OIL
Part Number: 12668542
$4.89 MSRP: $8.10
You Save: $3.21 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023-2024 Chevrolet Corvette | LT6 CONVERTIBLE, LT6 COUPE | 8 Cyl 5.5L
View related parts
Chevrolet Corvette Seal, Exhaust Valve Stem Oil
Part Number: 12564852
Product Specifications
- Other Name: SEAL, Engine Valve; Valve Seal
- Replaces: 12558674
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1996 Chevrolet Corvette | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
View related parts
Chevrolet Corvette Seal, Exhaust Valve Stem Oil
Part Number: 10147883
Product Specifications
- Other Name: SEAL, Engine Valve
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 Chevrolet Corvette | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
View related parts
Chevrolet Corvette Seal, Exhaust Valve Stem Oil
Part Number: 10147882
Product Specifications
- Other Name: SEAL, Engine Valve; Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 Chevrolet Corvette | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
View related parts
Chevrolet Corvette Seal,Valve Stem Oil
Part Number: 10067412
Product Specifications
- Other Name: SEAL, Engine Valve; Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1990-1995 Chevrolet Corvette | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
View related parts
Chevrolet Corvette Seal Assembly, Valve Stem
Part Number: 10128383
Product Specifications
- Other Name: SEAL, Engine Valve; Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Chevrolet Corvette | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L

Chevrolet Corvette Valve Stem Oil Seal

Chevrolet Corvette Valve Stem Oil Seal is designed to keep combustion chambers free of rogue lubricant by metering tightly the oil that hugs each valve guide. Sitting snugly around the valve stem, the Valve Stem Oil Seal lets just enough slick film pass through to reduce metal-to-metal wear but keeps excess that tends to slip past the valve and into the cylinder, foul plugs and raise emissions. In every generation of Corvette small block or LS-series engine, the Valve Stem Oil Seal works in conjunction with springs and guides to ensure the compression is stable as the cam, lifters, pushrods, and rocker arms cycle each intake and exhaust valve. Early elastomer umbrella designs depended on the support of the stem itself, but later positive Valve Stem Oil Seals that are fixed to the guide provide a tighter press fit to withstand the higher rpm and heat of modern Chevrolet performance motors. Classic Corvette fans still find umbrella seals on old heads. The main difference is that umbrella seals float with the valve and so they are only there to deflect the oil splash, while positive seals grip the guide and use a precisely sized lip to meter the flow, giving Chevrolet drivers cleaner burn, steadier idle, and longer catalyst life. Because the Valve Stem Oil Seal is exposed to constant heat, worn units can even harden, allowing oil to leak, smoke to emerge, and engine vacuum to drop, indicating the need to refresh every hardworking Valve Stem Oil Seal.

Each OEM Chevrolet Corvette Valve Stem Oil Seal we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Corvette Valve Stem Oil Seal Parts Questions & Experts Answers

Seal Kit,Intake Valve Stem Oil
12482063
Q: How can broken Rocker Shaft Spring Kit and Valve Stem Oil Seal be replaced without removing the cylinder head on Chevrolet Corvette?
A:
Well-worn valve springs and valve stem seats that do not seat properly can be repaired with the head off and often do not need to be removed, but require two special tools and compressed-air source. Start by pulling out the spark plug and the valve cover, crank the engine in order to align the number one piston on the compression stroke. Then, you have to take out the Rocker Arms which are used for the number one cylinder and fit an adapter to the spark plug hole and attach a hose to it for an air compressor from a compressed air supply. Use compressed air to close the valves and make them stay in position; use shop rags to block all the spaces of the cylinder head round the valves to ensure that no part and tool fall in the engine. Simply strike lightly on top of the valve spring retainer to remove the check between the valve keeper and the spring retainer, then make use of a valve spring compressor to compress the spring and then remove the keeper using a small needle nose pliers or magnet. Pull out the valve spring and the retainer by pulling carefully to prevent the valve from being struck by the falling spring and bending. Take off the old valve stem seals and notice that the intake is always different from the exhaust, and put a rubber band or a piece of tape around the top of the valve stem so that it does not fall into the combustion chamber when you release the air pressure. Check the condition of the valve stem , it should not stick in the guide. Apply air pressure to keep the valve shut; replace the valve stem seals, the spring and retainer. Slightly compress the valve spring assembly to fit in the keepers and use a tiny amount of grease to fix them if required. Subsequently, if the keepers are comfortably seated, shut off the line of air and take off the adapter from the surface of the spark plug. Perform same procedure on the rest of cylinders with regards to firing order sequence; then install the rocker arm assembly and the valve covers. Last, engage the engine and look for traces of oil or strange sounds and rev the engine for not less than five minutes.

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