AR05.30-P-4511AV Check/Remove/Install Valve Guides

Inspecting, Removing, Installing Valve Guides






Remove
1 Remove valves

Inspection
2 Inspect valve guide,

NOTE: Inspect valve guide if the measurements obtained are not within the stated tolerances, Replace valve guide.

Machining
3 Machine valve seat ring in cylinder head

NOTE:
- Observe tool manufacturer's operating instructions, maintain dimensions in accordance with checking and machining dimensions.
- If the measurements after machining are less than the specification, Replace valve seat ring.

Inspection
4 Measure seat width

NOTE: Correct valve seat width if necessary.

5 Insert valve and inspect for leaks

NOTE: Grind valve with valve grinding compound before installation.

6 Measure valve set-back to cylinder head

NOTE:
- If measurement is less than minimum dimension no further correct valve clearance compensation is possible; replace valve seat ring or cylinder head.
- The valve must always be replaced after installing a new valve seat ring.

Install
7 Install valves.