How can broken Rocker Shaft Spring Kit and Valve Stem Oil Seal be replaced without removing the cylinder head in V8 engine on Chevrolet Colorado?

Valve springs and valve stem seals can be thereby changed without removing the cylinder head, these two components need two special tools and a compressed air supply. Start with the spark plugs and the valve covers, turn the crankshaft until the #1 piston is on the top in the compression stroke. Take off the rocker arms of the number 1 piston, screw an adapter in the spark plug hole and attach an airline from the source of compressed air. Put compressed air to the cylinder to close the valves and then use the shop rags to block the cylinder head holes around the valves to avoid dropping of the parts and tools in the engine. They should be tapped lightly with the palm of your hand to break the seal and then they require the use of valve spring compressor to compress the spring while the keepers can be removed by using small needle-nose pliers or by use of magnet. Take out the valve spring and retainer using strictly the pressure of air to keep the valve shut in order to prevent damaging it. Take out the old valve stem seals-take note that the intake and exhaust seals differ, secure a rubber band or tape around the top of the valve stem to prevent it from falling into the combustion chamber when you release the air pressure. Although this valve is relatively simple, there are several things you have to look at the valve stem, which should not bind in the guide. Reduce air pressure to hold the valve closed, then install the new valve stem seals up to the specified thickness, without clamping them up against their topped guide. Place the spring and retainer on the valve, press the assembly just enough to fit the keepers into place and drop a small quantity of grease if one is needed to hold the keepers into place. Pull the air hose off and remove the adapter from the spark plug hole and then follow the same procedure for all the rest of the cylinders, always sticking to the firing order and basically going through all of the puffs while bringing each of the pistons to the TDC on the compression stroke. Last, bolt on the rocker arm assemblies and the valve covers and crank the engine, inspecting for mainative oil leakage and other odd noises and should let the engine run for at least five minutes at idle and then bring up to its high end rpms.

Genuine Chevrolet Colorado Valve Stem Oil Seal

Engine Valve Seal

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

8 Valve Stem Oil Seals found

View related parts
Chevrolet Colorado 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:
- 2009-2012 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 8 Cyl 5.3L
View related parts
Chevrolet Colorado Seal Kit,Valve Stem Oil
Part Number: 19207664
$29.95 MSRP: $49.58
You Save: $19.63 (40%)
Ships in 1-2 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:
- 2015-2022 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXT CAB - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 4 Cyl 2.5L, 6 Cyl 3.6L
View related parts
Chevrolet Colorado 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:
- 2009-2012 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 8 Cyl 5.3L
View related parts
Chevrolet Colorado Seal,Valve Stem Oil
Part Number: 12596994
$10.55 MSRP: $17.45
You Save: $6.90 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Valve; Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2006 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 4 Cyl 2.8L, 5 Cyl 3.5L
View related parts
Chevrolet Colorado Seal, Valve Stem Oil
Part Number: 12668832
$3.19 MSRP: $5.08
You Save: $1.89 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Valve; Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2017-2022 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXT CAB - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 6 Cyl 3.6L
View related parts
Chevrolet Colorado Seal Kit, Vlv Stem Oil
Part Number: 12693552
$22.90 MSRP: $37.89
You Save: $14.99 (40%)
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 Colorado | CREW CAB - 5'2" BOX, LS CREW CAB - 5'2" BOX, LS CREW CAB-5'2" BOX(I), LT CREW CAB - 5'2" BOX, LT CREW CAB-5'2" BOX(I), LTZ CREW CAB-5'2" BOX, SPORT CREW-5'2" BOX(NA) | 4 Cyl 2.7L
View related parts
Chevrolet Colorado Seal,Valve Stem Oil
Part Number: 90410741
$6.07 MSRP: $9.70
You Save: $3.63 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Valve; Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2022 Chevrolet Colorado | CREW CAB - 5'2" BOX, CREW CAB - 6'2" BOX, CREW CAB LS - 6'2" BOX, CREW CAB LT - 6'2" BOX, EXT CAB - 6'2" BOX, EXTENDED CAB - 6'2" BOX, LS CREW CAB - 5'2" BOX, LS EXTENDED CAB - 6'2" BOX, LT CREW CAB - 5'2" BOX, LT EXTENDED CAB - 6'2" BOX | 4 Cyl 2.8L Diesel
View related parts
Chevrolet Colorado Seal,Valve Stem Oil
Part Number: 12596995
$9.08 MSRP: $14.47
You Save: $5.39 (38%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL, Engine Valve; Valve Seal
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2012 Chevrolet Colorado | CREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP | 4 Cyl 2.9L, 5 Cyl 3.7L

Chevrolet Colorado Valve Stem Oil Seal

The Chevrolet Colorado Valve Stem Oil Seal helps to protect the engine by preventing excessive lubricant from flowing into the cylinders so that the truck burns fuel cleanly and maintains compression. Sitting snugly around each valve stem, a Valve Stem Oil Seal meters a thin film of oil on its way toward the guides while blocking larger flows that would cause smoke, fouled plugs, and lost efficiency. As the camshaft pushes the valves open via either the pushrod arrangement of an OHV head or the direct action of an OHC configuration, the seal experiences constant heat and movement, and the lip being flexible keeps contact with the moving stem to retain the pressure. Even when miles are added up and valve lash is increased, a good Valve Stem Oil Seal still controls the lubrication process, preventing the burnt and distorted valves that can be seen when parts are overheating and float is devastating them. In Chevrolet mid-size pickups such as the Colorado, the Valve Stem Oil Seal is applied in conjunction with robust valve springs rated near 70 to 90 pounds of seat pressure to avoid the kind of misfires that can occur with weak sealing and oil fouling. Regular Valve Stem Oil Seal inspection with top end service helps to avoid costly valve or piston damage that occurs when oil contamination increases wear and risks float at high revs in Chevrolet Colorado models.

Each OEM Chevrolet Colorado 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 Colorado Valve Stem Oil Seal Parts Questions & Experts Answers

Seal,Valve Stem Oil
12596994
Q: How can broken Rocker Shaft Spring Kit and Valve Stem Oil Seal be replaced without removing the cylinder head in V8 engine on Chevrolet Colorado?
A:
Valve springs and valve stem seals can be thereby changed without removing the Cylinder Head, these two components need two special tools and a compressed air supply. Start with the spark plugs and the valve covers, turn the crankshaft until the #1 piston is on the top in the compression stroke. Take off the Rocker Arms of the number 1 piston, screw an adapter in the spark plug hole and attach an airline from the source of compressed air. Put compressed air to the cylinder to close the valves and then use the shop rags to block the cylinder head holes around the valves to avoid dropping of the parts and tools in the engine. They should be tapped lightly with the palm of your hand to break the seal and then they require the use of valve spring compressor to compress the spring while the keepers can be removed by using small needle-nose pliers or by use of magnet. Take out the valve spring and retainer using strictly the pressure of air to keep the valve shut in order to prevent damaging it. Take out the old valve stem seals-take note that the intake and exhaust seals differ, secure a rubber band or tape around the top of the valve stem to prevent it from falling into the combustion chamber when you release the air pressure. Although this valve is relatively simple, there are several things you have to look at the valve stem, which should not bind in the guide. Reduce air pressure to hold the valve closed, then install the new valve stem seals up to the specified thickness, without clamping them up against their topped guide. Place the spring and retainer on the valve, press the assembly just enough to fit the keepers into place and drop a small quantity of grease if one is needed to hold the keepers into place. Pull the air hose off and remove the adapter from the spark plug hole and then follow the same procedure for all the rest of the cylinders, always sticking to the firing order and basically going through all of the puffs while bringing each of the pistons to the TDC on the compression stroke. Last, bolt on the rocker arm assemblies and the valve covers and crank the engine, inspecting for mainative oil leakage and other odd noises and should let the engine run for at least five minutes at idle and then bring up to its high end rpms.

Related Chevrolet Colorado Parts

Browse by Year

2024 Valve Stem Oil Seal 2023 Valve Stem Oil Seal 2022 Valve Stem Oil Seal 2021 Valve Stem Oil Seal 2020 Valve Stem Oil Seal 2019 Valve Stem Oil Seal 2018 Valve Stem Oil Seal 2017 Valve Stem Oil Seal 2016 Valve Stem Oil Seal 2015 Valve Stem Oil Seal 2012 Valve Stem Oil Seal 2011 Valve Stem Oil Seal 2010 Valve Stem Oil Seal 2009 Valve Stem Oil Seal 2008 Valve Stem Oil Seal 2007 Valve Stem Oil Seal 2006 Valve Stem Oil Seal 2005 Valve Stem Oil Seal 2004 Valve Stem Oil Seal