My timing belt broke yesterday on my 2004 Elantra while I was going 65mph. No noise, car just shut off. I have 152k mile on the car. I tried several things today and want to post my results to see what advice i can get.
Today I replaced the timing belt, following a YouTube video. Never done it before, but i lined the camshaft/crankshaft marks up like the video said to do. In the video the guy was just replacing a belt, but mine broke..so i ended up having to separately turn the top and bottom gear to get the marks lined up, then I put the timing belt on. I think i did it right. The car started up after that but sounded horrible and shut off on its own. I then tested the compression of each cylinder. These are the readings I got: 155, 140, 150, and 0. So then as another test, I removed the fuel injector plug to the cylinder that read 0 compression, and started the car up again. it ran better, but was still really rough and sounded bad and felt like it was going to cut off.
I'm looking for advice on what to do next. I have no idea how to inspect the valves or open the head and whatnot. I did see that I can get a used cylinder head on ebay for about $300 after shipping. Is this something I should look into? Or could there be more damage beyond just the cylinder head? Or based off my description would it be better to try and repair what i've got?
One thing to note - I figured i might have valve damage and what not so I didnt fully replace everything I took off when i was putting the new timing belt on. I left the alternator, water pump, power steering, and AC pulleys disconnected. I figured running the car for 10 seconds wouldnt hurt anything. Does anyone know if this could affect my results in any way? I'm pretty sure i have some damage given that I have 0 compression on one of the cylinders...but just want to make sure leaving all that stuff disconnected wouldnt cause issues or skewed results. I know I shouldnt run the car for long w/o the water pump running, but i just wanted to see if it would even start with the new timing belt on.
What should my next steps be? I'd really like to keep the car, but dont want to spend a fortune on it.
Today I replaced the timing belt, following a YouTube video. Never done it before, but i lined the camshaft/crankshaft marks up like the video said to do. In the video the guy was just replacing a belt, but mine broke..so i ended up having to separately turn the top and bottom gear to get the marks lined up, then I put the timing belt on. I think i did it right. The car started up after that but sounded horrible and shut off on its own. I then tested the compression of each cylinder. These are the readings I got: 155, 140, 150, and 0. So then as another test, I removed the fuel injector plug to the cylinder that read 0 compression, and started the car up again. it ran better, but was still really rough and sounded bad and felt like it was going to cut off.
I'm looking for advice on what to do next. I have no idea how to inspect the valves or open the head and whatnot. I did see that I can get a used cylinder head on ebay for about $300 after shipping. Is this something I should look into? Or could there be more damage beyond just the cylinder head? Or based off my description would it be better to try and repair what i've got?
One thing to note - I figured i might have valve damage and what not so I didnt fully replace everything I took off when i was putting the new timing belt on. I left the alternator, water pump, power steering, and AC pulleys disconnected. I figured running the car for 10 seconds wouldnt hurt anything. Does anyone know if this could affect my results in any way? I'm pretty sure i have some damage given that I have 0 compression on one of the cylinders...but just want to make sure leaving all that stuff disconnected wouldnt cause issues or skewed results. I know I shouldnt run the car for long w/o the water pump running, but i just wanted to see if it would even start with the new timing belt on.
What should my next steps be? I'd really like to keep the car, but dont want to spend a fortune on it.