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      08-19-2018, 01:33 AM   #1
e70jane
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Talking E70 N62 Rocker Arm Fallen

Been chasing a hesitation problem for the past 6 months. Multiple CAN faults and cel are present. Stealership replaced negative battery cable and ibs but no difference. Searched all over for a short but couldn't find any. Replaced alternator, pointless. Checked Vanos, all working. Replaced driver side Valvetronic actuator due to fluctuating ohms value on multimeter, wasn't the problem. Finally, what I hoped not to perform, replace eccentric shaft sensors. So today I removed the driver side valve cover and removed eccentric sensor. Nothing unusual, connector and beneath the square metal plate was free of oil. However, I discovered a fallen rocker arm. Now I'm quite confident that all along, this was the culprit! Now, how bad of a job would it be to reinstall the rocker piece?
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      08-22-2018, 11:42 PM   #2
e70jane
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This is the part that fell off and was bouncing around inside the valve cover.


Is the AGA tool a must to put this part back in place?
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      08-24-2018, 10:33 AM   #3
heatmizr
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Wow!! Had no idea these could just fall off!
Following...
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Last edited by heatmizr; 08-24-2018 at 01:05 PM.
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      08-26-2018, 02:28 AM   #4
GMWNashville
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You can put them back in you just need to turn the motor over to a point where the cam puts as little tension as you can on that rocker and use a pick. It's a pain in the ass and you need to be careful but it can be done. Interesting that it tossed one out on its own though-I've only seen that happen during reassembly for repairs that they come out...
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      09-25-2018, 03:14 PM   #5
e70jane
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Quote:
Originally Posted by GMWNashville View Post
You can put them back in you just need to turn the motor over to a point where the cam puts as little tension as you can on that rocker and use a pick. It's a pain in the ass and you need to be careful but it can be done. Interesting that it tossed one out on its own though-I've only seen that happen during reassembly for repairs that they come out...
I already put it back on but before I start it up, I will first change the oil from 10w40 (euro formula) back to 5w30. I'm wondering if the thicker oil was the cause for the lash adjuster to freeze up, hence the rocker arm falling off. I inspected the spring and all looks fine, nothing broken. I'm also hoping and praying to god it's not a bent valve. Any case, wish me luck..
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      09-25-2018, 04:21 PM   #6
heatmizr
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Doubtful that the oil caused it, how much difference can there be between those two similar spec oils?
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