Caterpillar — Cylinder Head Grounding Stud - Inspect/Clean/Tighten
Maintenance
From a Caterpillar owner's manual covering: 3054E, 3056E, C12. Check it applies to your exact model before use.
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Procedure
- Inspect the wiring harness for good connections.
- Tighten the cylinder head grounding stud at every oil change.
- Clean the cylinder head grounding stud and the terminals with a clean cloth.
- If the connections are corroded, clean with a solution of baking soda and water.
- Keep the stud and strap clean and coated with MPGM grease or petroleum jelly.
Specs & values
- Ground wires and straps should be combined at engine grounds. All grounds should be tight and free of corrosion.
Source: Caterpillar owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.