2000 Hyundai Accent Valve Seat Insert Replacement Procedure

2000 Hyundai Accent Valve Seat Insert Replacement Procedure

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1. Using the Valve Guide installer push rod, push the valve guide out toward the cylinder block with a press. 2. Machine the valve guide insert hole in the cylinder head to the specified oversize of the new valve guide. 1. Any valve seat insert that has been worn over the service limit should be removed at normal temperature after cutting away most of the insert wall, using valve seat cutters. 2. After removing the seat insert, machine the seat insert bore using a reamer or a cutter. Cut to the size shown in the table. 3. Heat the cylinder head to about 250° (480° and press in the oversize C F) seat insert. The oversize seat insert should be at normal room temperature for installation.

After installing a new valve seat insert, resurface the valve seat using the same procedure described in the first paragraph of “Valve Seat Insert” (above). VALVE GUIDE REPLACEMENT PROCEDURES The valve guide is installed using a press fit. Using a Valve Guide Installer (09221 – 22000) or suitable tool, replace the valve guide described in the following procedure. 3. Using the Valve Guide Installer or suitable tool, press fit the valve guide. Using the valve guide installer makes it possible to press fit the valve guide to a predetermined height. Install the valve guide from the top of the cylinder head. Note that intake and exhaust valve guides differ in length (42.7 mm [1.68 inch] for intake and 39.1 mm [1.54 inch] for exhaust).

After installing the valve guides, insert new valves and check the clearance. 5. Whenever valve guides are replaced, check for valve-to-seat contact, and recondition the valve seats as necessary DISASSEMBLY 1. Using the special tool, Valve Spring Remover and Installer, remove the retainer lock. Next, remove the spring retainer, valve spring, spring seat and valve. NOTE: Keep these parts in order so that they can be reinstalled in their original positions. 2. Remove the valve stem seals with pliers, and discard them. NOTE: Do not reuse the valve stem seals. INSPECTION VALVE SPRING 1. Check the valve spring free length and tension. If they exceed the service limit, replace the spring. 2. Using a square, test the squareness of each spring. If a spring is excessively out of square, replace it. Valve Spring Standard value: Free height: 42.03 mm (1.655 inch) Load: 24.7 kg at 34.5 mm Out of square: 1.5° less or