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Broken rocker arm is lost inside valve cover!
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=82755		 Page 1 of 1
Author:  pjigar [ Mon Aug 03, 2015 11:34 pm ]
Post subject:  Broken rocker arm is lost inside valve cover!
I have searched and read numerous posts on broken rocker arms. Every post lead me to believe that broken rocker arms would be found sitting under the valve cover. I just opened valve cover for my Libby (to install ARP studs) and to my surprise I found a broken and lost rocker arm on intake #4 far back towards the firewall! I looked around the valve for broken rocker but I can't find it. I am going to try and fish valve cover intake ports tomorrow. But in the mean time, has anyone ever had this kind of issue? Would I need to open head to find the broken rocker arm? I hope not. I am already too deep in to engine than I have ever been with any of my cars.
Author:  pjigar [ Tue Aug 04, 2015 12:44 am ]
Post subject:  Re: Broken rocker arm is lost inside valve cover!
Another relevant information: I was getting code for bad #4 glow plug before I took the valve cover off.
Author:  geordi [ Tue Aug 04, 2015 1:46 am ]
Post subject:  Re: Broken rocker arm is lost inside valve cover!
Are all the valve stems at exactly the same height? Where are you located?

It is a possibility that any bits of the rocker are now in the oil pan, some of the passages are small, but that is where they all go. I can try to examine the spare (destroyed) head that I have outside tomorrow to see what (if anything) can be determined about where the parts might go... What is missing and how big might it be?

If you need assistance, I can potentially come and work on it for you, but glow plug issues should not be ignored. I'm in the process of finishing replacement of an entire engine b/c of a broken plug. This is a very serious issue.
Author:  flash7210 [ Tue Aug 04, 2015 6:00 am ]
Post subject:  Re: Broken rocker arm is lost inside valve cover!
There are several oil drain passages that the rocker could have fallen into but Im pretty sure the rocker is too big to make it all the way down into the pan.
It probably got knocked off when you removed the valve cover.
A magnetic retriever tool will help.
Author:  pjigar [ Tue Aug 04, 2015 10:29 am ]
Post subject:  Re: Broken rocker arm is lost inside valve cover!
flash7210 wrote:

It probably got knocked off when you removed the valve cover.


You were right. I knocked off a rocker behind the block next to the firewall. Thank you for the tip.
Author:  pjigar [ Tue Aug 04, 2015 10:31 am ]
Post subject:  Re: Broken rocker arm is lost inside valve cover!
geordi wrote:
Are all the valve stems at exactly the same height? Where are you located?

It is a possibility that any bits of the rocker are now in the oil pan, some of the passages are small, but that is where they all go. I can try to examine the spare (destroyed) head that I have outside tomorrow to see what (if anything) can be determined about where the parts might go... What is missing and how big might it be?

If you need assistance, I can potentially come and work on it for you, but glow plug issues should not be ignored. I'm in the process of finishing replacement of an entire engine b/c of a broken plug. This is a very serious issue.


Thanks for the ideas. Glow plug is not broken it is just out electrically. I have all glow plugs out safely and being replaced with 7V metal plugs. And as I said in earlier post, I found the knocked off rocker behind the block.
Author:  olypopper [ Tue Aug 04, 2015 11:20 am ]
Post subject:  Re: Broken rocker arm is lost inside valve cover!
Pjigar, you are lucky. I chased rocker arm needles into the oil pan on my Libby!
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