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Discussion Starter #1
A local diesel shop said they would put studs in, drive the truck up to operating
temp and retorque for 4 hrs shop time. I asked if this included setting the valve
lash and the guy said he can do it without taking the rockers off. Is this possible
or should I run? I dont see how they could be torqued properly, but then I dont
know much.
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I really don't know.:confused013:
I have read that you have to take a few rockers off, not many.:stirpot:
 

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I really don't know.:confused013:
I have read that you have to take a few rockers off, not many.:stirpot:
you dont need to remove the rockers to set valve lash. mopar1973 man gave a good write up on the whole process.
Valve Lash Adjustment

as far as the head studs what the shop said makes sense, although you can easily do all of this yourself, you done need to be a rocket scientist to swap head studs and set valve lash.
 

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Discussion Starter #4
you dont need to remove the rockers to set valve lash. mopar1973 man gave a good write up on the whole process.
Valve Lash Adjustment

as far as the head studs what the shop said makes sense, although you can easily do all of this yourself, you done need to be a rocket scientist to swap head studs and set valve lash.
I was talking about getting the rockers out of the way so you could
operate the torque wrench properly. It seems like the rockers under the
cowl would be in the way???? But hey, I've never done it. I just did
injectors for the first time and put on a new Super B and downpipe.
PITA! Sounds like a jet. Have not romped on it yet (well a little). Got
to get those studs in, have read how to do it. I just dont know what
happens to other parts if I pull some rockers off. LOL, but I dont
need springs and rods shooting off into the bushes! I do remember
from physics for torque to be applied it needs to be in a straight line
and not off to the side like with a crows foot because then you are
adding in a lever force.
 

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It is fine to torque with a crowfoot, but you need the proper equation to work out the proper adjustment. My dad used it quite a bit when he was building his plane, as several fasteners could only be reached using this method.


M1 = M2 x L1 / L2
M1 is the torque setting of the wrench.
M2 is the actual torque applied to the nut
L1 is the normal length of the wrench
L2 is the extended length of the wrench (Length of wrench + length of adapter)
Attaching the crowsfoot at 90 degrees on the torque wrench will not change the torque value enough to matter.
Using a "solid" extension will not change the torque value enough to matter. (Torque is still being applied in the same axial plane.)

Torque = Force x Radius
 

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can you use a crowsfoot on those 12pt nuts on the top of the studs?

when i did mine i had to remove the intake rocker to be able to get a socket and torque wrench on the nut.. the exhaust rocker wasnt in the way.

hope this helps
 
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you really cannot do studs without removing the rockers. However youc an do studs without having to adjust valve lash. When you remove the rocker arms you remove the center moutning point on the pedestal that they sit on. This in no way effects how the rocker arms are set. If you did a turbo and injectors you can do studs yourself.
 
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