NOTE: Follow the prescribed procedure exactly. To perform the following measurements, the valve lifters must be removed.
NOTE: Make sure the camshaft type is correct (specification).
NOTE: Bearing caps and camshaft journals must be clean and free of grease.
Lay a piece of Plastigage clearance gauge thread on the bearing cap.
- Install the camshaft in the cylinder head without lubricating it.
- Lay a Plastigage clearance gauge thread equal in length to the width of the bearing cap on the corresponding journal.
2. Install the camshaft bearing caps. Tighten the fastener in the sequence shown.
3.
NOTE: Do not knock on bearing caps.
Remove the camshaft bearing caps. Loosen the fastener in the sequence shown.
4. Carry out the measurement with a special tool.
- Compare the width of the Plastigage thread with the appropriate scale.
- The scale reading corresponds to the radial clearance in the bearing.
- If readings are out of specification, install a new camshaft.
Comments on this article