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One day, I was driving down the road and my car started making a terrible noise.
It sounded something like a baseball card taped to your kid's bike and slapping against the spokes, only much worse. I wanted to shut her down and pull over right there, but couldn't until i got out of the bad curves. I found a driveway to pull into but had to use power to get it up the slope. It was running fine, only sounding like it was tearing itself apart. I had my wife start it up while I was listening for a location. It was so loud I couldn't even begin to tell where it was coming from.
I've been meaning to replace the valve seals because she was burning lots of oil. I know it is the valve seals because she was still getting 33-38 mph and had perfect results on both a direct compression check and a differential compression check.
So I started taking it apart and quickly found the problem.
As soon as i removed the timing belt cover, I discovered the timing belt was very loose. I then realized that the tensioning pulley had broken off of it's plate and was just sitting in there. The noise was a result of the slack side of the timing belt violently slapping against the cover. There was evidence of this on the cover itself.
I have since removed the cylinder head. One reason is because I wanted to do work to the valve seals. The other reason was because I wanted to check to make sure that the loose timing belt hadn't caused any contact between the valves and pistons. There is no such damage. I lucked out! Also at 130K, the cylinder walls are in excellent shape. I'll have her up and running in no time!
It sounded something like a baseball card taped to your kid's bike and slapping against the spokes, only much worse. I wanted to shut her down and pull over right there, but couldn't until i got out of the bad curves. I found a driveway to pull into but had to use power to get it up the slope. It was running fine, only sounding like it was tearing itself apart. I had my wife start it up while I was listening for a location. It was so loud I couldn't even begin to tell where it was coming from.
I've been meaning to replace the valve seals because she was burning lots of oil. I know it is the valve seals because she was still getting 33-38 mph and had perfect results on both a direct compression check and a differential compression check.
So I started taking it apart and quickly found the problem.
As soon as i removed the timing belt cover, I discovered the timing belt was very loose. I then realized that the tensioning pulley had broken off of it's plate and was just sitting in there. The noise was a result of the slack side of the timing belt violently slapping against the cover. There was evidence of this on the cover itself.
I have since removed the cylinder head. One reason is because I wanted to do work to the valve seals. The other reason was because I wanted to check to make sure that the loose timing belt hadn't caused any contact between the valves and pistons. There is no such damage. I lucked out! Also at 130K, the cylinder walls are in excellent shape. I'll have her up and running in no time!
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