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-   -   Checking the camshaft bearing caps (http://www.scionxdforum.com/forum/showthread.php?t=1754)

TheJonas53 10-31-2013 07:40 PM

Checking the camshaft bearing caps
 
2 people I know have had issues with a rattle noise from the top of the engine which resulted in engine damage. It was confirmed to me that the camshaft bearing caps loosened. I am writing this up for info on how to torque your bearing caps if anyone is concerned about them and may be having a noise that is not related to the water pump and timing chain. It is a simple job that just requires a torque wrench and a new valve cover gasket.

Found a video on YouTube from someone with a 2010 Corolla and how he put the rocker arms back on after they popped off from over revving.
http://www.youtube.com/watch?v=BLdMWkzSwXk

The torque specs for the cam shaft bearing caps are 12 ft-lbs. Must be torqued in the sequence shown.
http://i114.photobucket.com/albums/n...73068156_n.jpg

The torque specs for the camshaft housing sub-assembly is 20 ft-lbs. Must be torqued in the sequence shown.
http://i114.photobucket.com/albums/n...57599556_n.jpg

Valve cover torque is 7 ft-lbs or 84 in lbs.

TheJonas53 12-14-2013 11:21 AM

Fixed. I dont know why the images got deleted.

TheJonas53 01-01-2014 06:22 PM

Updated first post with a video I found.


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