Yesterday was cruise night at a town about 25 miles from my house. I fixed the intake manifold oil leak two weeks ago, but it still leaks a very small amount of oil from somewhere, so I check the oil before I drive it. It was running fine all day, and I didn't give it more than 1/4 throttle. Btw, I run Mobil 1 5W-30 full synthetic. When it is warm and idling, the oil pressure drops to around 12psi, but runs at 35psi when I'm driving.
On the way to the cruise night, my friend wanted me to pass him, so I floored it for the only time that night. Around 10 minutes after that, I could hear a squeeling noise, so I pulled over. It sounded like it was coming from under the intake manifold or under the driver's side valve cover. I checked the oil again, and it was full, so I left it, and towed it home today.
When I started it today, it didn't make the noise until it ran for around 10 seconds. I pulled the valve cover off, and adjusted all of the valves on the driver's side. When I started it up again, it was quiet for around 10 seconds again, then slowly got louder, so I shut it off.
It sounds like it is coming from cylinder #5, under the intake manifold. I think I'm going to pull it off tomarrow and see what the lifters look like. Hopefully I didn't spin a cam bearing. I think that it is something that reciprocates, because it is momentary, and makes more of a chirping sound. It is strange that it goes away after it sits, but comes back, almost like something isn't getting any oil.
Sorry for the long post, but I figure too much information is better than not enough. If anyone has any ideas or ways to figure out what it might be, I'd appreciate it. If there is something that I left out, just let me know.
On the way to the cruise night, my friend wanted me to pass him, so I floored it for the only time that night. Around 10 minutes after that, I could hear a squeeling noise, so I pulled over. It sounded like it was coming from under the intake manifold or under the driver's side valve cover. I checked the oil again, and it was full, so I left it, and towed it home today.
When I started it today, it didn't make the noise until it ran for around 10 seconds. I pulled the valve cover off, and adjusted all of the valves on the driver's side. When I started it up again, it was quiet for around 10 seconds again, then slowly got louder, so I shut it off.
It sounds like it is coming from cylinder #5, under the intake manifold. I think I'm going to pull it off tomarrow and see what the lifters look like. Hopefully I didn't spin a cam bearing. I think that it is something that reciprocates, because it is momentary, and makes more of a chirping sound. It is strange that it goes away after it sits, but comes back, almost like something isn't getting any oil.
Sorry for the long post, but I figure too much information is better than not enough. If anyone has any ideas or ways to figure out what it might be, I'd appreciate it. If there is something that I left out, just let me know.
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