Cam bolts came loose
07-26-2011, 06:18 PM
#1
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Cam bolts came loose I just put a cam in my 99 C5 and I'm assuming I didn't clean the bolts enough prior to putting the thread locker on and they came loose. Oops, guess I'll learn from this one.
Anyway, I was wondering if I need to remove the rockers to move the cam or if I can just turn the motor and slowly try to move it forward. I don't want to damage anything, basically the lifters are riding on the front of the lobes rather than in the middle.
I have a pic but it's kind of hard to see, I took the intake manifold off and looked under the cover.
Anyway, I was wondering if I need to remove the rockers to move the cam or if I can just turn the motor and slowly try to move it forward. I don't want to damage anything, basically the lifters are riding on the front of the lobes rather than in the middle.
I have a pic but it's kind of hard to see, I took the intake manifold off and looked under the cover.
07-26-2011, 06:26 PM
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Hopefully there isn't any damage... The best thing to do really is take the valve covers off and loosen all the rockers and take the pr's out, than flick the cam over a cuple times so you get get the lifters up and try to push it back in while slowly turning it. Than I would pull the cam and check for damage
Do you think it'll stay where you put it? 
07-26-2011, 08:02 PM
#6
Sounds to me like he's expecting to move the cam forward and have it stay in that position without any mechanical intervention. If he's just putting the bolts in, why worry about where the cam is? Just put the bolts in and torque them, the cam will move to the correct (and only) position it can.
07-26-2011, 08:08 PM
#7
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I'd think it wouldn't torque properly since the lifters would be putting pressure on the cam. So that's why I was going to move the cam to the correct position then torque the bolts. The cam won't easily move forwards or backwards with the pressure on it from the valvetrain.
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07-26-2011, 08:09 PM
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Sounds to me like he's expecting to move the cam forward and have it stay in that position without any mechanical intervention. If he's just putting the bolts in, why worry about where the cam is? Just put the bolts in and torque them, the cam will move to the correct (and only) position it can.
07-26-2011, 08:11 PM
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I'd think it wouldn't torque properly since the lifters would be putting pressure on the cam. So that's why I was going to move the cam to the correct position then torque the bolts. The cam won't easily move forwards or backwards with the pressure on it from the valvetrain.
07-26-2011, 08:30 PM
#12
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Oh it won't move, they are going to have to be loosened. It's not a big deal though.
Anyone heard anything about this:
http://www.thunderracing.com/shop-by...984.html#P8469
Anyone heard anything about this:
http://www.thunderracing.com/shop-by...984.html#P8469
07-26-2011, 08:33 PM
#13
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Oh it won't move, they are going to have to be loosened. It's not a big deal though.
Anyone heard anything about this:
http://www.thunderracing.com/shop-by...984.html#P8469
Anyone heard anything about this:
http://www.thunderracing.com/shop-by...984.html#P8469
07-26-2011, 08:38 PM
#14
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Torqued them to 26 lb ft with a torque wrench. Put loctite red thread locker on the bolts.
I didn't spray the bolts off with brake cleaner or anything though, I think that's what caused the problem. I just cleaned them off with a new rag and put the loctite on them. I should have used some sort of cleaner on them so the loctite would hold better.
I didn't spray the bolts off with brake cleaner or anything though, I think that's what caused the problem. I just cleaned them off with a new rag and put the loctite on them. I should have used some sort of cleaner on them so the loctite would hold better.
07-26-2011, 08:39 PM
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Torqued them to 26 lb ft with a torque wrench. Put loctite red thread locker on the bolts.
I didn't spray the bolts off with brake cleaner or anything though, I think that's what caused the problem. I just cleaned them off with a new rag and put the loctite on them. I should have used some sort of cleaner on them so they loctite would hold better.
I didn't spray the bolts off with brake cleaner or anything though, I think that's what caused the problem. I just cleaned them off with a new rag and put the loctite on them. I should have used some sort of cleaner on them so they loctite would hold better.
07-26-2011, 08:44 PM
#16
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Buy that Comp lock plate, it comes with new bolts and is only 8.50. I'm sure if you clean the stock bolts good you'll be fine. I just ended up being one of the few who had the problem, I'm just glad I found out before anything serious happened. This is not an uncommon problem.
07-26-2011, 08:47 PM
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Buy that Comp lock plate, it comes with new bolts and is only 8.50. I'm sure if you clean the stock bolts good you'll be fine. I just ended up being one of the few who had the problem, I'm just glad I found out before anything serious happened. This is not an uncommon problem.
07-26-2011, 08:51 PM
#18
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Car threw a code for the cam position sensor. So I took the intake manifold off to see the sensor, which looked fine, then I pulled the cover off top of the motor and saw the lifter sitting off center and knew what had happened.
Sucks but live and learn I guess. Sure won't ever happen again I can tell you that much
Sucks but live and learn I guess. Sure won't ever happen again I can tell you that much
07-26-2011, 08:53 PM
#19
I broke a stock bolt getting it to torque last month. ARP sells the cam bolt kit for 15 bucks and the bolts are much better than oe quality. With the arp's you can actually feel the bolt tighten and torque whereas with the stockers they tighten up but have a stretching feeling to them compared to the arps.