What tools and compressed air source are needed to replace broken valve springs or defective valve stem seals without removing the cylinder heads on Lincoln Town Car Overhead valve (OHV)engines?

To replace broken valve springs or defective valve stem seals without removing the cylinder heads, specific tools and compressed air are needed. Remove valve cover(s) and spark plug(s) from affected cylinder. Ensure piston is at Top Dead Center on compression stroke. Thread adapter into spark plug hole and connect air hose from compressed air source. If no air pressure, insert nylon rope into combustion chamber to prevent valve drop. Remove rocker arm, fulcrum, and pushrod for affected valve. Apply compressed air to hold valves in place. Alternatively, with rope, stuff rags into cylinder head holes, use valve spring compressor to compress spring, remove keepers, and disassemble valve components. Inspect valve stem for damage, lubricate it, and install new valve guide seal. Reassemble valve components, release air pressure or rotate crankshaft, and reinstall rocker arm(s), pushrod(s), spark plug(s), and valve cover(s). Start and run engine, check for oil leaks and unusual sounds from valve cover area.

What are the methods available to replace broken valve springs or defective valve stem seals without removing the cylinder heads on Lincoln Town Car Overhead cam (OHC) engine?

If the broken valve spring or defective valve stem seals are to be replaced without removing the cylinder heads, there are two methods that can be used. In both methods of repair, compressed air is usually required but if it is not obtainable, a length of nylon rope serves as a tool to keep valves from falling into the cylinder during operation. After removing the valve cover and positioning the cylinders at TDC, compressed air or rope is utilized to maintain the valve position. In this case, special tools compress the spring by using air hence allowing for the removal of the camshaft roller follower, keepers, spring retainer, and valve spring respectively. Valve stem seals are then fitted while components are reinstalled in reverse order. Alternatively, the camshaft and roller follower may be removed using a locally available valve spring compressor after which removal/installation follows a similar sequence.

Genuine Lincoln Town Car Valve Stem Seal

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12 Valve Stem Seals found

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Lincoln Town Car Seal - Valve Stem
Part Number: F4AZ-6571-A
$7.24 MSRP: $10.31
You Save: $3.07 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Valve Seal
- Replaces: F3AZ-6049-A, F4AZ-6049-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1993-2011 Lincoln Town Car | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R70W (AODE), 4-Speed Automatic Transmission 4R75E Livonia, 4-Speed Automatic Transmission AODEW/4R70E W/TSS, 4-Speed Automatic Transmission AODEW/4R70E W/TSS*S/V, 4-Speed Automatic Transmission AODEW/4R75E W/TSS S/V, 4-Speed Automatic Transmission NAAO AODEW/4R70W*S/VIL, 4AT 4R70W, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Lincoln Town Car Seal - Valve Stem
Part Number: E7ZZ-6571-A
$13.73 MSRP: $18.75
You Save: $5.02 (27%)
ADD TO CART
Product Specifications
- Other Name: Intake Valve Seal, Valve Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1982-1989 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD
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Lincoln Town Car Seal - Valve Stem
Part Number: E8AZ-6571-A
$13.73 MSRP: $18.75
You Save: $5.02 (27%)
ADD TO CART
Product Specifications
- Replaces: E43Z-6571-A, FOTZ-6049-K, F1HZ-6049-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1986-1990 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD
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Lincoln Town Car Seal - Valve Stem
Part Number: E5ZZ-6571-A
$13.73 MSRP: $18.75
You Save: $5.02 (27%)
ADD TO CART
Product Specifications
- Other Name: Valve Seals
- Replaced by: F2TZ-6571-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1990 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD
View related parts
Lincoln Town Car Seal - Valve Stem
Part Number: F2TZ-6571-A
$13.73 MSRP: $18.75
You Save: $5.02 (27%)
ADD TO CART
Product Specifications
- Other Name: Exhaust Valve Seal, Valve Seal
- Replaces: E5ZZ-6571-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1989-1990 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD
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Lincoln Town Car Seal - Valve Stem
Part Number: E6TZ-6571-A
$1.43 MSRP: $2.03
You Save: $0.60 (30%)
Product Specifications
- Other Name: Valve Seal
- Manufacturer Note: OHV
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1988-1989 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD
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Lincoln Town Car Seal - Valve Stem
Part Number: F1CZ-6571-A
Product Specifications
- Manufacturer Note: Intake & Exhaust
- Replaced by: 1S4Z-6571-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1982-1985 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD
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Lincoln Town Car Seal - Valve Stem
Part Number: E7ZZ-6571-B
Product Specifications
- Other Name: Exhaust Valve Seal, Valve Seal
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1982-1989 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD
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Lincoln Town Car Seal Valve Stem
Part Number: E7ZZ6571D
Product Specifications
- Other Name: Seal - Valve Stem
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1982-1989 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD
View related parts
Lincoln Town Car Seal Valve Stem
Part Number: E7ZZ6571E
Product Specifications
- Other Name: Seal - Valve Stem
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1982-1989 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD
View related parts
Lincoln Town Car Seal - Valve Stem
Part Number: F1AZ-6571-A
Product Specifications
- Other Name: Valve Seal
- Manufacturer Note: Intake & Exhaust
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1991-1994 Lincoln Town Car | 8 Cyl 4.6L | 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE
View related parts
Lincoln Town Car Seal - Valve Stem
Part Number: F1TZ-6571-D
Product Specifications
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1986-1989 Lincoln Town Car | 8 Cyl 5.0L | 4AT AOD

Lincoln Town Car Valve Stem Seal

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Lincoln Town Car Valve Stem Seal Parts Questions & Experts Answers

Seal - Valve Stem
F4AZ-6571-A
Q: What tools and compressed air source are needed to replace broken valve springs or defective valve stem seals without removing the cylinder heads on Lincoln Town Car Overhead valve (OHV)engines?
A:
To replace broken valve springs or defective valve stem seals without removing the cylinder heads, specific tools and compressed air are needed. Remove valve cover(s) and spark plug(s) from affected cylinder. Ensure piston is at Top Dead Center on compression stroke. Thread adapter into spark plug hole and connect air hose from compressed air source. If no air pressure, insert nylon rope into combustion chamber to prevent valve drop. Remove Rocker Arm, fulcrum, and Pushrod for affected valve. Apply compressed air to hold valves in place. Alternatively, with rope, stuff rags into cylinder head holes, use valve spring compressor to compress spring, remove keepers, and disassemble valve components. Inspect valve stem for damage, lubricate it, and install new valve guide seal. Reassemble valve components, release air pressure or rotate crankshaft, and reinstall rocker arm(s), pushrod(s), spark plug(s), and valve cover(s). Start and run engine, check for oil leaks and unusual sounds from valve cover area.
Seal - Valve Stem
E6TZ-6571-A
Q: What are the methods available to replace broken valve springs or defective valve stem seals without removing the cylinder heads on Lincoln Town Car Overhead cam (OHC) engine?
A:
If the broken valve spring or defective valve stem seals are to be replaced without removing the Cylinder Heads, there are two methods that can be used. In both methods of repair, compressed air is usually required but if it is not obtainable, a length of nylon rope serves as a tool to keep valves from falling into the cylinder during operation. After removing the valve cover and positioning the cylinders at TDC, compressed air or rope is utilized to maintain the valve position. In this case, special tools compress the spring by using air hence allowing for the removal of the Camshaft roller follower, keepers, spring retainer, and valve spring respectively. Valve stem seals are then fitted while components are reinstalled in reverse order. Alternatively, the camshaft and roller follower may be removed using a locally available valve spring compressor after which removal/installation follows a similar sequence.