Symptoms
Oil weeping from the rocker cover, sump or manifold joints, or a tired head gasket on a high-mileage engine.
The fix, step by step
- RockAuto lists gasket sets for the 1967 Patrol 4.0 (head gasket set, valve-cover, sump, intake/exhaust manifold and full engine sets), so routine resealing is easy.
- Clean the mating faces, use new gaskets, and torque in the sequence from the workshop manual.
- When SNLC rebuilt a 1964's P engine, he also rebuilt the single-barrel Hitachi carburettor with a quality kit; do the carb at the same time if it's leaking or flooding.
Tools & part numbers
- Torque wrench
- scraper
- feeler gauges for valve lash
Where to buy the parts
Cylinder head gasket set, 1967 Patrol 4.0LRockAuto ↗Amazon ↗
Valve cover gasket, 1967 Patrol 4.0LRockAuto ↗Amazon ↗
Oil pan gasket, 1967 Patrol 4.0LRockAuto ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Nissan Patrol 60 Series parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.