Ford 1S7Z-6571-A
Valve Seals, Brown/Gray

Valve guide seals need service with clean practices to stop foreign matter from getting into oil or coolant chambers since this causes engine failure. Start the process by hoisting the vehicle in NEUTRAL gear and removing camshafts first. Mark each valve tappet before replacement because its number value represents the fraction digits after the decimal point (0.650 becomes 3.650 mm thick). The next step involves connecting compressed air at 7 to 10 bars (100-150 psi) to the No. 1 cylinder while ensuring air supply continuance until the valve spring, retainer and collet installation. This prevents the valve from entering the cylinder. Valve Spring Compressors along with compressed air should be used to compress the valve spring before removing the valve collet using grease and a small screwdriver then the valve spring retainer and spring. You need the Valve Stem Oil Seal Remover together with the Slide Hammer for proper removal and disposal of the valve stem seal. The valve stem seal installation begins with placing the sleeve and using the Valve Stem Oil Seal Installer with the valve collet properly in position to install the new valve stem seal. Use Valve Spring Compressors and mount the valve spring before implementing the valve spring retainer and collet by applying grease for assistance. The compressed air supply needs disconnection before performing the removal and installation sequence of remaining cylinders. Clean engine oil should be applied onto the valve tappets before inserting them back into place with the camshafts.

Begin any repairs on valve stem seals by establishing cleanliness to block foreign substances from entering oil or coolant passages because failure could damage the engine system. The vehicle installation on a hoist in NEUTRAL position allows for camshaft removal. Mark the valve tappets to maintain original positions because tappet numbers equal their thickness measurement digits after the decimal point (0.650 tappet thickness equals 3.650mm). You should only disconnect compressed air from the No. 1 cylinder once all valve parts including spring, retainer, collet are fully installed to keep the valve from entering the cylinder. The process requires compressed air followed by use of Valve Spring Compressors to pressurize the spring before extraction with a screwdriver and multi-purpose grease for removing the valve collet. Finishing the operation with spring and retainer placement. The Valve Stem Oil Seal Remover together with the Slide Hammer tool should be used to extract and throw away the outdated valve stem seal unit. Begin by inserting the valve stem seal installation sleeve followed by a use of the Valve Stem Oil Seal Installer which must properly set the valve collet in place. The valve spring installation requires you to replace the spring and retainer before compressing and securing the collet with grease through screwdriver usage. The compressed air supply must be disconnected during the repeated procedure on each cylinder. Before installation place the valve tappets in clean engine oil then put them into position with the camshafts.

The repair and service of the valve guide seals starts with proper cleanliness to stop foreign substances from entering oil or coolant channels that result in complete engine breakdown. The service requires positioning the vehicle on a hoist and setting the vehicle neutral while removing camshafts. When using existing camshafts and valve tappets, mark original locations because the numerical code behind the decimal point indicates the precise size (example: 0.650 shows 3.650 millimeters of dimension). The compressed air supply at 7-10 bars (100-150 psi) must be connected to cylinder No.1 spark plug holes until the valve spring retainer installation to protect the valve from entering the cylinder. Compressed air should be applied to the cylinder before using Valve Spring Compressors to squeeze the valve spring while removing the valve collet with a small screwdriver and multi-purpose grease. The valve spring retainer and spring should then be installed. The Valve Stem Oil Seal Remover partnered with the Slide Hammer allows the technician to remove the current valve stem seal before disposing of it. Begin by placing the valve stem seal installation sleeve before using the Valve Stem Oil Seal Installer to install the new valve stem seal while checking the proper positioning of the valve collet. The valve spring must be reinstated using the Valve Spring Compressors before valve spring retainer and collet installation with required applications of multi-purpose grease. After disconnecting compressed air supply, continue the removal and installation actions for the other cylinders. Place clean engine oil on valve tappets followed by reinstallation of the camshafts.

Valve Spring Compressors.

Repeat the removal and installation steps for the remaining cylinders.