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 Post subject: Valve cover install, verifying rocker placement
PostPosted: Sun May 03, 2015 12:59 pm 
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Location: Boise, Idaho
You all think this procedure is worth doing?

I'm sure I'm not the first to think of this, but I bet this little procedure will help some folks.
To make sure you didn't knock one of the rockers off the valve stem when you install it, try the following.

Torque cover bolts 11 and 16 to 7nm, and then torque #1 to 25nm. This makes sure you don't have to take the timing cover off just to torque one bolt. You can guess how I figured this out :banghead: You probably want to finger tighten down the other two corner bolts as well.

Install the timing cover to spec, or you can skip some of the bolts if you like, but don't skip anything that is blocked by the timing components.

Install the timing belt set properly (I had a lot of doubt that I had knocked a rocker off, so I only torqued the cam gears to 70) , but nothing else after setting the cover on top of the engine. This way if a rocker is off, you can be back at it in ten minutes.

Turn the engine over a few times BY HAND to settle or finish knocking off any cliff hangers.

Now, I used a 5/8th inch piece of fuel line that was about 3 ft long as I found it seats down in where the injectors go easily, and is easy to get a decent seal. The end needs to be cut really flush being the only real trick. A little tape on the end can make it fit even tighter if you don't want to have to push down on the line for a seal. Now, each two rotations of the crank should allow you to easily blow air through the line twice. Paying special attention to how easily you can blow air through will hopefully help you identify a %50 reduction of air flow, or if you knocked of two adjacent rockers, you won't be able to move any air. Pull the intake side CAC hose, and you should be able to hear air blow through there when the intake valve opens, and then you'll hear air blow up out of another pistons' injector hole when you hopefully have the exhaust valves open for that piston (it whips around through the exhaust manifold). Repeat for each piston. Took me about 5 mins to have piece of mind that I won't put everything back together just to have a rocker off.

If everything sounds good, and you don't feel twice the resistance. or hear half the flow on any intake vs intake, or exhaust vs exhaust (of another piston), then you can finish buttoning it up with more piece of mind.

:POPCORN:

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