![]() ![]() When trying to start the engine now, and while trying to keep it running, it does sound like the timing is WAY off - it spits through the carb and also the exhaust. So now I am thinking it is not a head gasket. I ran the engine with the radiator cap off, no bubbles in the coolant. No sign of coolant in the oil, or oil in the coolant. In addition, no steam out of the tail pipe. This happened suddenly, immediately after the oil change.Īt first, I was thinking bad head gasket, but in my 45 years of wrenching, I've never had a head gasket fail this suddenly, usually they go gradually. (I know, I know, how could it be a coincidence, but I swear I didn't do anything that could cause this!) I cannot figure out for the life of me what I did - I am thinking it is just a coincidence and something failed internally. I have done hundreds of oil changes and have never had a problem before. It has never done this before, and as I said, was running great before the oil change. And, I have never seen the coolant temps rise so rapidly - I can't keep it running long or it will overheat. If I let off the throttle, it slows down to barely running, extremely rough, and then dies. I have to hold the throttle half way to the floor to keep it running, and it is REALLY rough. Of course, I turned it off before it completely overheated. Extremely rough, and would overheat quickly. When I got the vehicle down off the ramps, it was a little difficult to start, and when it did, it ran really BAD. I changed the oil, lubed the 10 front suspension zerks, replaced the filter, etc. When I came home, I pulled up on car ramps so I could change the oil. The engine ran beautifully, good power, smooth running, etc. Yesterday, I drove the vehicle, on a 50 mile round trip. I am the second owner, the vehicle was given to me by my brother in law. It has 310,000 miles on it, and has been overhauled twice, the last time was 30,000 miles ago. If you are repairing or rebuilding an engine, O'Reilly Auto Parts carries freeze plug sets with the correct sizes for many engine types to help you make a confident, lasting repair.I have a 1977 El Camino with the straight 6 250 cubic inch straight 6 engine. The new plug is then inserted into the hole and tapped into place using a rubber mallet or a specially designed installation tool. When replacing an engine expansion plug, the old plug is typically removed by prying it out with a suitable tool. Engine expansion plug kits are available for engine repair or rebuilding purposes, and usually include multiple plugs of different sizes to accommodate various openings in the engine. Expansion plugs can also suffer from corrosion that can lead to pinholes and allow coolant to leak. Freeze plugs are made to allow for this expansion, and often pop out of the engine block or cylinder head when water freezes inside the water channel. When water freezes, it expands, which can crack or otherwise damage your engine block and require a costly repair. If the coolant-to-water ratio in your engine is incorrect, it is possible that water can freeze inside the engine block's water jackets during cold weather. Engine freeze plugs are also designed to help prevent damage to the engine block caused by coolant freezing inside the engine. During the manufacturing of the engine, these plugs are installed in various locations that were originally intended to facilitate the casting process. Related CategoriesĪn engine expansion plug, also known as an engine freeze plug, seals off openings in the engine block or cylinder head that are necessary during the manufacturing process, but are not intended to be permanent. Fuel Filter And Pressure Regulator Assembly
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