Valve Guide: Service and Repair

Valve guides, replacing

Cylinder heads on which the valve seat surface can no longer be refaced or cylinder heads that have been refaced down to the minimum dimension cannot be repaired further.

- press worn valve guides out from camshaft side with tool 10-206
- valve guides with shoulder (service version) must be pressed out from combustion side
- coat new guides with oil and press into cold cylinder head to the shoulder from camshaft side with tool 10-206
- ream valve guides by hand with reamer tool 10-215
- use proper cutting lubricant
- reface valve seats

CAUTION! Once guide shoulder is seated do not use more than 1 ton pressure or guide shoulder may break.