Wednesday, December 8, 2010

Install a Value Cover 258 On a Jeep

In 1971 Jeep used the 258 straight-six engine built by AMC. The engine has a single valve cover located on an angle on the driver's side of the engine. The valve cover protects the top of the engine's head and valves. The original valve covers on the AMC engines were painted steel. Over time, the valve covers tended to rust. This could result in the valve cover leaking engine oil.

Procedures:
1. Pull the PCV valve out of the top of the valve cover. The valve simply presses into the top of the cover.
2. Remove the seven bolts that secure the Jeep's valve cover to the engine head with a socket and ratchet.
3. Pull the valve cover off the Jeep's engine head. Some of the gasket will peel off with the old valve cover. Make sure none of that gasket gets inside the engine head.
4. Scrape the gasket material left on the mating surface of the engine head off the head using a metal scraper. Make sure none of the gasket material gets into the Jeep's engine head.
5. Place the new valve cover gasket onto the engine head and line up the bolt holes.
6. Place the valve cover on top of the engine head and secure it using the seven bolts, socket and ratchet.

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