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Spun camshaft

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Old 06-19-2016, 10:43 PM
  #16  
bigrpowr
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Originally Posted by A418t81
Yeah, more 07s and it seems to either be more related with having some miles on the car, making a lot of torque, or even both. Mine happened on the dyno once the car started making 700 wtq and at 49k miles. That said, there are plenty of stock, low mileage cars that it happened to as well, so who really knows. There are multiple accounts of it happening to a car as soon as they get E85 tunes, or big turbos that make a lot of torque.



It's behind me because I had the failure, I paid the $8500 out of pocket, and now it's fixed. It isn't an easy failure to deal with either. My car was gone for 2.5 months.




Pinning permanently fixes the issue. I don't expect to ever have that problem again.
is it common to spin the cam with E85 or it just become's more possible ? i've been planning on going to an E85 tune, but will certainly reconsider if this is a normal failure from running it.
Old 06-19-2016, 11:14 PM
  #17  
A418t81
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No, it's not common in general or to E85. Like I said, there is a very weak correlate to high torque cars spinning the cam. In my car I ran E85 for a year with no issue, but when I put it on the dyno to squeeze more power out, the torque went up 30-40 ft/lbs and it happened then....right as I reached 700 wtq. My buddy and tuner has an 07 with upgraded VTGs that has made as much as 780 wtq, and has never had an issue.

I would still recommend E85 tuning. It absolutely transforms the car. They are monsters on ethanol.
Old 06-19-2016, 11:38 PM
  #18  
bigrpowr
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Originally Posted by A418t81
No, it's not common in general or to E85. Like I said, there is a very weak correlate to high torque cars spinning the cam. In my car I ran E85 for a year with no issue, but when I put it on the dyno to squeeze more power out, the torque went up 30-40 ft/lbs and it happened then....right as I reached 700 wtq. My buddy and tuner has an 07 with upgraded VTGs that has made as much as 780 wtq, and has never had an issue.

I would still recommend E85 tuning. It absolutely transforms the car. They are monsters on ethanol.
roger that. we usually weld the cam gears on our V8 diesels when we go over 1500tq , just a safety measure. my plan with this car was to make 600 ish hp .. i just really dont feel like being forced to tear this motor apart.

how did you find a reliable source of E85 ?
Old 06-20-2016, 12:58 AM
  #19  
A418t81
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They sell it at the pump. I don't tune my cars ever on the ragged edge for actual E85. I usually have a gallon or two of pump mixed in. This accounts for any variation in E85 mixture at the station and affords a degree of safety.
Old 06-20-2016, 01:05 AM
  #20  
bigrpowr
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Originally Posted by A418t81
They sell it at the pump. I don't tune my cars ever on the ragged edge for actual E85. I usually have a gallon or two of pump mixed in. This accounts for any variation in E85 mixture at the station and affords a degree of safety.
cool. i wasnt aware of the tuning side adjustment. figured i needed a relatively consistent mix. i have a station about 20 miles away , i'll just buy it in bulk there. thanks !
Old 06-20-2016, 02:31 AM
  #21  
A418t81
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It depends on how you've tuned it. There isn't actually much power to be had on actual E85 as compared to say E60. I'm usually around E60-70 when I tune the car and I have the timing backed down slightly from maximum once the tuning is complete. This will allow fluctuations in ethanol content while not adversely affecting the motor. I don't even run the pump gas totally out when I switch from pump back to E85. No need
Old 06-20-2016, 09:41 PM
  #22  
bigrpowr
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Originally Posted by A418t81
It depends on how you've tuned it. There isn't actually much power to be had on actual E85 as compared to say E60. I'm usually around E60-70 when I tune the car and I have the timing backed down slightly from maximum once the tuning is complete. This will allow fluctuations in ethanol content while not adversely affecting the motor. I don't even run the pump gas totally out when I switch from pump back to E85. No need
thanks a ton. i haven't talked to todd at protomotive about it yet because i havent swapped the injectors , figured i would roll over to it after the tune only power wore off , which wont take long .
Old 06-21-2016, 07:08 PM
  #23  
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Just got the CEL on my car last week. Being hopeful and ordered the actuator for replacement...if it persists after the install then I to have fallen victim to the spun camshaft.

2008 car...76k miles on the clock.
Old 06-21-2016, 08:55 PM
  #24  
estrellajon
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Originally Posted by Turboslut
Just got the CEL on my car last week. Being hopeful and ordered the actuator for replacement...if it persists after the install then I to have fallen victim to the spun camshaft. 2008 car...76k miles on the clock.
Good luck . Let us know. I'm confident the actuator will fix it
Old 06-22-2016, 11:52 AM
  #25  
CincyScott
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Originally Posted by estrellajon
Good luck . Let us know. I'm confident the actuator will fix it
Sometimes the sleeve corrects itself too. I think both Therock88 and ibanezgod both have had the light come on and then go off. Ibanezgod's came back, but DC's has stayed off.
Old 06-22-2016, 01:30 PM
  #26  
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Yea the sleeve continues to spin until the oil feed holes aren't blocked anymore. That said, there's nothing to prevent it from continuing to turn and then obstructing the holes again.
Old 06-22-2016, 02:44 PM
  #27  
Ibanezgod
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Originally Posted by CincyScott
Sometimes the sleeve corrects itself too. I think both Therock88 and ibanezgod both have had the light come on and then go off. Ibanezgod's came back, but DC's has stayed off.
yup, made it 7700 miles.

Originally Posted by A418t81
Yea the sleeve continues to spin until the oil feed holes aren't blocked anymore. That said, there's nothing to prevent it from continuing to turn and then obstructing the holes again.
what damage can occur if the sleeve doesn't correct itself or corrects itself afte a period of time/mileage? Any idea? It's obviously not good for the engine, but doesn't seem to be catastrophic. Aren't there multiple holes?
Old 06-22-2016, 05:02 PM
  #28  
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Yeah I have parked my car until I swap the actuator, but I dont feel right potentially starving some component of oil that was designed to be awash in it, if the CEL remains after the swap.


Originally Posted by Ibanezgod
yup, made it 7700 miles.



what damage can occur if the sleeve doesn't correct itself or corrects itself afte a period of time/mileage? Any idea? It's obviously not good for the engine, but doesn't seem to be catastrophic. Aren't there multiple holes?
Old 06-22-2016, 10:27 PM
  #29  
bigrpowr
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Originally Posted by Turboslut
Yeah I have parked my car until I swap the actuator, but I dont feel right potentially starving some component of oil that was designed to be awash in it, if the CEL remains after the swap.
smart move.
Old 06-24-2016, 07:50 PM
  #30  
xxdachosen1xx
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Well after driving a Macan S around for nearly 3 1/2 weeks I finally received my car back and although I must say I did thoroughly enjoy the Macan S I was ready to get my car back. All I have to say is thank god for my Hendrick Guard aftermarket warranty coverage, they covered the repair 100% outside of the deductible which was only $150 out of my pocket (total was ~$8500). I originally paid $2500 for the powertrain aftermarket warranty 4 years 50k miles. Obviously the warranty has paid for itself almost 4 times over. The claim was seamless and they didn't blink an eye when it came time to pay the dealership, I'm thoroughly impressed in Hendrick guard warranty.

They also let me keep the old camshaft just incase I have this failure in the future I can have the old cams pinned, but I doubt I will have the issue in the future being that both sides have been replaced.


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