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Rocker arm torque specs... advice?

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Old 05-14-2010, 06:04 AM
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Rocker arm torque specs... advice?
While I'm doing my injectors I'm putting in new pushrods. What are the torque specs for the rocker arms? Is it 20 ft/lbs or 120 ft/lbs?

Also, any advice on installing the pushrods?
 
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Old 05-14-2010, 06:45 AM
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Good question. Subscribing.

I am doing head studs and springs/pushrods So all the torque specs we can get would be helpful.
 
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Old 05-14-2010, 07:21 AM
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That small of bolt will NOT take 120 FOOT POUNDS...
I'll try to look at my manual later if I remember...
 
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Old 05-14-2010, 08:01 AM
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Make sure the motor is clocked at the point on the CPS to the line on the crank shaft balancer..
 
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Old 05-14-2010, 08:55 AM
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Where's Travis and Cody? They just did pushrods in theirs...

Originally Posted by Action4478
Make sure the motor is clocked at the point on the CPS to the line on the crank shaft balancer..
What will that do?
 
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Old 05-14-2010, 09:00 AM
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Manual says it important, keeps from bending the push rods & or valves at start up..
 
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Old 05-14-2010, 09:04 AM
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From the manual :


CAUTION: Failure to follow the next step of this procedure could result in bent valves, causing severe engine damage.

Rotate the engine until the mark on the crankshaft damper is at 11 o'clock to prevent valve damage when installing the intake rocker arm and exhaust rocker arm.

Install push rods.

Install the intake rocker arm or exhaust rocker arm.

Install the two rocker arm bolts. Tighten rocker arm bolts evenly to 27 Nm (20 lb-ft).

Install the valve cover gasket.

Connect the engine harness electrical connectors to the valve cover gasket.

Connect the electrical connectors to the fuel injectors and glow plugs.

Install the valve cover and bolts. Tighten bolts to 11 Nm (97 lb-ft).

Connect the vacuum pump hose to the vacuum pump.

Install the intake duct bracket and the two retaining nuts.

Install the crankcase breather assembly and the two retaining screws.

Install the intake duct tube assembly, the two retaining bolts and the clamps at the turbocharger and air cleaner. Connect battery ground cable.


--------------------------------------------------------------------------------
If I had to guess , it might not be necessary depending on how long you wait to start the engine
 
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Old 05-14-2010, 10:35 AM
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Awesome. Thanks Rick.
 
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Old 05-14-2010, 11:17 AM
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Yes oh yes. I totally forgot about that one. Thanks.
 
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Old 05-14-2010, 11:24 AM
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I'm gonna be bumping it over several times after doing the Injectors, so I'll try to install the pushrods first with the mark at 11 0'clock.
 
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Old 05-14-2010, 12:31 PM
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Put the pushrods in there while the engine is at 11:00 then spin it.
Better safe than sorry.
 
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Old 05-14-2010, 08:52 PM
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Yep, I agree. I'll probably have my buddy helping me out do the pushrods while I'm tearing down the injectors.
 
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Old 05-15-2010, 12:50 AM
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An explanation of the 11 oclock position and why would be nice for the knowledge banks.
Anyone have an idea?
My best guess is that the lifters are all in a certain position that does not allow them to move without that pressure on them?

I like neals idea of turning it over by hand after install.
 
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Old 05-15-2010, 05:45 AM
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Cool, I learned something today.
I never knew about the 11 o'clock deal.
I always rotate the motor to take the load off the rockers/rod I am working on.
 
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Old 05-15-2010, 07:05 AM
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Originally Posted by Action4478
From the manual :


Install the valve cover and bolts. Tighten bolts to 11 Nm (97 lb-ft).
Warning That's a typo there. The valve cover bolts should be in INCH pounds.

Also, the torque on the injector hold down bolts are 120 lb-in (INCH again).
 
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