Valve Clearance Check

WARNING: This page is about a different variant/trim than selected.

For information on Ford Color Coded Illustrations refer to OEM Color Coding .

Special Tool(s) / General Equipment

Feeler Gauge

Check

Refer to: Valve Cover .
NOTE: Turn the engine clockwise only, and only use the crankshaft bolt.

NOTE: Before removing the camshafts, measure the clearance of each valve at base circle, with the lobe pointed away from the tappet. Failure to measure all clearances prior to removing the camshafts will necessitate repeated removal and installation and wasted labor time.

Use a feeler gauge to measure the clearance of each valve and record its location. Use the General Equipment: Feeler Gauge

Courtesy of FORD MOTOR COMPANY
NOTE: The number on the valve tappet only reflects the digits that follow the decimal. For example, a tappet with the number 0.650 has the thickness of 3.650 mm.

NOTE: The nominal clearance is:
- intake: 0.25 mm (0.01 in)
- exhaust: 0.30 mm (0.0115 in)
NOTE: The acceptable clearances after being fully installed are:
- intake: 0.23-0.28 mm (0.009-0.011 in)
- exhaust: 0.27-0.33 mm (0.010-0.013 in)
Select the closest tappet size to the ideal tappet thickness available and mark the installation location.
NOTE: Select tappets using this formula: tappet thickness = measured clearance + the existing tappet thickness - nominal clearance.

If any tappets do not measure within specifications, install new tappets in these locations. Refer to: Valve Tappets .