Anyone that regularly service this engine might be able answer the following. I hope. I got a call in to the local JD dealer service department but don't much confidence in them as they couldn't even find a bad spark plug recently.
- Does the oil pressure oil relief spring needs some pressure on it? Current measure just above minimum spec'd free length but sits in place loose.
- What is the relief hole maximum depth?
Also note the oil pressure switch is new but is appears to switching at around 15 psi instead of the 4-6 psi the service manual specs.