Alright well before I even got to do my "New Cobra Owner" introduction thread, I believe I have possibly spun a rod bearing, 3 Days into owning my new Termi. :cryying::mj: I know I know...
Here is the story:
Late Saturday night I took it out for a spin and gave it a few hard runs (did not pass 6k RPM) then I noticed the noise. I quickly then pulled over and tried to investigate exactly what it was, I did not get a drop in oil pressure, no strange colors or water in the oil dip stick, and it ran fine with the exception of that horrible noise. I even drove it 30+ miles back home. Next morning I tried to investigate the noise further but could not tell exactly where noise was coming from. I did some searching on here and found out about the dreaded head tick but it doesn't seem like the noise is coming from the valve train. Come Monday I decided to take it to the stealership to see if they can diagnose my problem but all I got was that they did a compression check and I have low compression on cyl #3 by 6%, They wanted me to pay $2200 just for them to pull the motor out and look further into it. I said f*ck that, paid a little over 100 bucks for the diagnostic and took it to a performance shop to see if I can get better luck there. At the performance shop the guy working there first wanted to rule out if it was the supercharger making that noise because thats where we thought the noise was coming from, so we took the belt of the pulley and started up the engine, the noise was still there. He told me it is definitely a bottom end issue, most likely a spun rod bearing. He told me the compression checks they do at the dealerships are done by some electronic device and its not a true compression check and also said 6% is not even enough to matter. With leaving me at a bottom end issue I am now looking into a complete rebuild but told me there are no cobra cranks available. I couldn't believe and decided to so some searching on my own and found all these short blocks for sale. I searched further into these forums and found plenty.
I am now thinking it might not even be a spun rod bearing, I personally think its a burnt exhaust valve, or a broken valve guide. I want to cut open my oil filter so I can eliminate the possibility of it being a spun rod bearing. How would you recommend me going about that without actually getting metal in it when cutting it. I already decided to have my close friends shop take the motor apart and find out exactly what the hell is making that noise. I already started bracing at the possibility of a rebuild. My friends shop works with a machine shop that can take care of all the machining work. If worst comes to the worst.
I would love to go ahead and attack this problem my self but come next week I'll be heading towards California as thats where I am being stationed.
Here is the video I took:
[video=youtube;VUnv8e615Zo]https://www.youtube.com/watch?v=VUnv8e615Zo[/video]
I hate being the one that caused this :nonono:, the previous owner took great care of this car, before this issue this car was immaculate! It was garaged and best part was it was right under 25k miles. I was loving the car. This was my ride to California now I have to buy a plane ticket. Oh well. I would love to hear some input from you guys, I know no one will know for sure in till the engine is opened up.
Thanks!
Here is the story:
Late Saturday night I took it out for a spin and gave it a few hard runs (did not pass 6k RPM) then I noticed the noise. I quickly then pulled over and tried to investigate exactly what it was, I did not get a drop in oil pressure, no strange colors or water in the oil dip stick, and it ran fine with the exception of that horrible noise. I even drove it 30+ miles back home. Next morning I tried to investigate the noise further but could not tell exactly where noise was coming from. I did some searching on here and found out about the dreaded head tick but it doesn't seem like the noise is coming from the valve train. Come Monday I decided to take it to the stealership to see if they can diagnose my problem but all I got was that they did a compression check and I have low compression on cyl #3 by 6%, They wanted me to pay $2200 just for them to pull the motor out and look further into it. I said f*ck that, paid a little over 100 bucks for the diagnostic and took it to a performance shop to see if I can get better luck there. At the performance shop the guy working there first wanted to rule out if it was the supercharger making that noise because thats where we thought the noise was coming from, so we took the belt of the pulley and started up the engine, the noise was still there. He told me it is definitely a bottom end issue, most likely a spun rod bearing. He told me the compression checks they do at the dealerships are done by some electronic device and its not a true compression check and also said 6% is not even enough to matter. With leaving me at a bottom end issue I am now looking into a complete rebuild but told me there are no cobra cranks available. I couldn't believe and decided to so some searching on my own and found all these short blocks for sale. I searched further into these forums and found plenty.
I am now thinking it might not even be a spun rod bearing, I personally think its a burnt exhaust valve, or a broken valve guide. I want to cut open my oil filter so I can eliminate the possibility of it being a spun rod bearing. How would you recommend me going about that without actually getting metal in it when cutting it. I already decided to have my close friends shop take the motor apart and find out exactly what the hell is making that noise. I already started bracing at the possibility of a rebuild. My friends shop works with a machine shop that can take care of all the machining work. If worst comes to the worst.
I would love to go ahead and attack this problem my self but come next week I'll be heading towards California as thats where I am being stationed.
Here is the video I took:
[video=youtube;VUnv8e615Zo]https://www.youtube.com/watch?v=VUnv8e615Zo[/video]
I hate being the one that caused this :nonono:, the previous owner took great care of this car, before this issue this car was immaculate! It was garaged and best part was it was right under 25k miles. I was loving the car. This was my ride to California now I have to buy a plane ticket. Oh well. I would love to hear some input from you guys, I know no one will know for sure in till the engine is opened up.
Thanks!
