5-101.bk Page 35 Friday, March 17, 2006 11:05 AM Refer to Figure 5-42. 4. Grind a groove around inside circumference of valve seat insert. This groove should be approximately 0.030 inch (0.762 mm) deep. 1. Using depth measurement tool (1), measure distance from cylinder head surface (2) to point on insert where groove will be ground. This point should be approximately 0.060 inch (1.524 mm) below any angular face on valve seat insert. Use care not to damage any machined surface of the cylinder head. 5. Attach collet to T-handle and shaft assembly. 6. Position collet in valve seat insert so ridge of collet will be inside groove. Turn T-handle to fully expand collet. 1 2 Refer to Figure 5-44.
7. Position lifting bridge (3) under crank handle (2). Turn crank handle clockwise to remove insert. 8. Release insert from collet (4) by slightly turning T-handle (1). 200299a Figure 5-42 — Valve Insert Depth Measurement Refer to Figure 5-43. 2. Install grinding wheel (2) into grinder (4) and set depth of grinder base (1) to dimension found in preceding step. 3. Secure base to grinder by tightening hex- head screw (3). 4 1 2 3 200300a Figure 5-44 — Removing Valve Insert Figure 5-43 — Setting Depth of Grinder Page 5-35 200 BENCH PROCEDURES 1. Depth measurement tool 2. Cylinder head surface 1. T-handle 2. Crank handle 3. Lifting bridge 4. Collet 1. Grinder base 2. Grinding wheel 3.
Hex-head screw 4. Grinder