Valve Guides

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They have a little snap ring to limit the depth inserted in into the head.

Overview

* 13212-H0112 GUIDE-VALVE INTAKE $8.08 
* 13213-H0113 GUIDE-VALVE EXHAUST $8.25 

The original guides (13212-H0110) were bronze. Someone said the newer part numbers are "steel" with improved wear characteristics.

Inspection

With the valve off the seat, move the valve side-to-side parallel with rocker arm.

The service specification (maximum allowed play) is:

• At the valve stem end, 7.9 thousands (0.0079 inch)
• At the valve head, 1.2 thousands (0.0012 inch)

Also see: Valve Spring Removal