Cam bolts came loose
07-31-2011, 12:56 PM
#41
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Looks like a crack to me! When I first seen the picture and was reading the post I said to myself, what the heck are they talking about when it has a big crack in the lifter bore. You better have somebody look at that. If it is spread open it's a dang crack. And I just noticed something else. The lifter looks like it is cocked in the bore and not straight down. And the roller looks like it is broken off the lifter also. I could be wrong but it looks a little more serious to me than what you think it might be. Good luck and keep us informed.
Last edited by Chicken Coupe; 07-31-2011 at 01:01 PM.
07-31-2011, 02:43 PM
#42
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Yeah I'm going to pull the intake off and look again in the next couple days. I spoke with a local company that builds engine blocks and they said if the it's smooth then it's a crack and if it's unlevel then it's a casting mark.
From what I understand since the other lifter is completely on the cam lobe it would be hard to see how one lifter would be off the lobe. The photo angle makes it hard to tell and there is really no way of knowing without being there and seeing the block they say. At least this is my understanding from the guy I talked to.
I also hear it can be repaired but I'd assume it would just be easier to get a new block and swap the parts over.
I'm just hoping for the best here.
From what I understand since the other lifter is completely on the cam lobe it would be hard to see how one lifter would be off the lobe. The photo angle makes it hard to tell and there is really no way of knowing without being there and seeing the block they say. At least this is my understanding from the guy I talked to.
I also hear it can be repaired but I'd assume it would just be easier to get a new block and swap the parts over.
I'm just hoping for the best here.
07-31-2011, 02:48 PM
#44
Looks like a crack to me! When I first seen the picture and was reading the post I said to myself, what the heck are they talking about when it has a big crack in the lifter bore. You better have somebody look at that. If it is spread open it's a dang crack. And I just noticed something else. The lifter looks like it is cocked in the bore and not straight down. And the roller looks like it is broken off the lifter also. I could be wrong but it looks a little more serious to me than what you think it might be. Good luck and keep us informed.
07-31-2011, 02:49 PM
#45
Yeah I'm going to pull the intake off and look again in the next couple days. I spoke with a local company that builds engine blocks and they said if the it's smooth then it's a crack and if it's unlevel then it's a casting mark.
From what I understand since the other lifter is completely on the cam lobe it would be hard to see how one lifter would be off the lobe. The photo angle makes it hard to tell and there is really no way of knowing without being there and seeing the block they say. At least this is my understanding from the guy I talked to.
I also hear it can be repaired but I'd assume it would just be easier to get a new block and swap the parts over.
I'm just hoping for the best here.
From what I understand since the other lifter is completely on the cam lobe it would be hard to see how one lifter would be off the lobe. The photo angle makes it hard to tell and there is really no way of knowing without being there and seeing the block they say. At least this is my understanding from the guy I talked to.
I also hear it can be repaired but I'd assume it would just be easier to get a new block and swap the parts over.
I'm just hoping for the best here.
07-31-2011, 06:03 PM
#46
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How are you so confident the block is fine? I want to think it is but there are a number of people saying it's cracked. I don't remember thinking anything was out of place when I pulled the valley cover off to look the first time.
I plan on taking another look to see what the lifter looks like, if it's on the lobe, which I would think it would be I'll be a little more comfortable retorquing the cam bolts and running the car.
I plan on fixing the problem with the cam and driving it. Just sucks hearing something that I initally though was a simple fix could turn into an expensive nightmare
Trust me I want to think you're right, I've just had multiple people say "yep, it's cracked" which I guess is easy for someone to say who knows nothing about a motor looking at the pics on their computer screen. This is Corvetteforum guys saying it's a cracked block as well as the ones who initally pointed out the flaws.
Thanks for your input, I do appreciate it
Thanks I'll have it up and running by the end of the week... And hopefully it stays running
I plan on taking another look to see what the lifter looks like, if it's on the lobe, which I would think it would be I'll be a little more comfortable retorquing the cam bolts and running the car.
I plan on fixing the problem with the cam and driving it. Just sucks hearing something that I initally though was a simple fix could turn into an expensive nightmare
Trust me I want to think you're right, I've just had multiple people say "yep, it's cracked" which I guess is easy for someone to say who knows nothing about a motor looking at the pics on their computer screen. This is Corvetteforum guys saying it's a cracked block as well as the ones who initally pointed out the flaws.
Thanks for your input, I do appreciate it
Thanks I'll have it up and running by the end of the week... And hopefully it stays running
07-31-2011, 07:12 PM
#49
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That area that looks like a crack is actually the jagged edge of the window, there is not a crack at all on the lifter bore. The lifter is riding completely on the cam lobe just on the edge like the lifter to the left is.
What a relief, now to get this thing all back together so I can enjoy this T-Rex cam!
What a relief, now to get this thing all back together so I can enjoy this T-Rex cam!
08-01-2011, 07:50 PM
#51
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Thanks for the correct guidance! I got the cam bolts retightened and am now in the process of putting everything back together. Two of the bolts cam out a few threads and the other was barely tight at all.
My recommendation would be to use ARP bolts bc this comp plate wasn't as great as I had anticipated.
Hopefully I can get the majority of the work done tomorrow morning and have it running by the end of Wednesday.
What a pain, I guess it could have been worse though, my motor is still in one piece.
My recommendation would be to use ARP bolts bc this comp plate wasn't as great as I had anticipated.
Hopefully I can get the majority of the work done tomorrow morning and have it running by the end of Wednesday.
What a pain, I guess it could have been worse though, my motor is still in one piece.
08-02-2011, 01:05 PM
#53
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No it worked, just not as well as I had hoped. If I was going to do it again I'd just buy the ARP bolts and put a good amount of thread locker on them.
The tabs were a pain. Once tightening the bolts you can't get even the thinnest flat head screwdriver under them. If they were pre-bent a little that would have made it 100x nicer.
The tabs were a pain. Once tightening the bolts you can't get even the thinnest flat head screwdriver under them. If they were pre-bent a little that would have made it 100x nicer.
08-02-2011, 04:53 PM
#56
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It's all back together, just took it out for a ride and everything looks good. Oil pressure is there and no check engine light. Now to get the final tune in and see what she's got!
