[ironmansd]

Right now I am doing studs on my 05, the usual ARP's OEM gaskets, heads machined and checked for cracks.
I am almost done and about to put the cab on when I read this http://www.powerstroke.org/forum/6-...lp-6-0-problem-after-head-stud-install-3.html
Basically saying that you have to position the crank dowel pin to the 6 o'clock position or you will bend a valve in cylinder 5 or 8
I have read a few threads of people doing studs and never saw anything about it until then, does everyone position the crank correctly but just not mention it? Or does it not bend valves as often as they make it sound

I tried to see where the crank was but couldnt find a mark on the pulley
I guess the problem is that the lifters are over pumped and extend the valves into the piston when tightened down, but what would cause them to be so high? also my truck has been sitting for about a month, so would that be enough time for them to compress back down? I took some pics of the rockers. apparently #5 is the one that most commonly bends valves.
The closest rocker is pressing a valve down but it doesnt seem like much, in comparison to the other one that isnt opening at all.
I am suppose to be putting the cab back on tomorrow but I would be beyond pissed if i have to take everything back off to do it again.
Any help would greatly appreciated

 

[toren302]

I am guessing you haven't started it yet from the post and the looks of the pic. If you are worried about it bar the motor over by hand several times. IF there is no binding you should be ok to start it. I have done tons of these and never put the dowel in the 6 position.

Also now that it is back together and not to piss you off more but the pushrods have been updated to shorter versions to eliminate the bending valve issue. Honestly if you turn the motor over by hand and there is no binding at all then I would start it. Also when spinning over by hand have the GP or injectors out.

The reason the valve doesn't appear to opening as much is most likely due to the lifters not being pumped up yet.

 

[JD_MILLS]

It's possible that you did. I didn't reposition mine and bent one. Didn't know I did until I started it. So when I studded my 6.4 I made sure to.

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[ironmansd]

Okay thanks, ill make sure I can turn it over by hand first, also are the pushrods something that can be changed with the cab on and without pulling the head studs? I have to put the cab on because it is at my uncles warehouse and they need the room back, but my injectors won't be here until mid next week so the head wont fully be back together until then, I could change them out while I wait for injectors to get here if it is possible

 

[JD_MILLS]

The push rod is what will bend. But I never raised the cab on mine. And in order to change the push rod you'll have to remove the nut from the stud.

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[toren302]

There is a tool to remove the rods with the bolts/studs still in place but it is expensive. Like I said bar it by hand SEVRAL times over and see if it binds up if not you should be OK. Also do you know how much the machine shop took off of the heads??? If not call and find out. If they cant provide that info then good luck it is a crap shoot on if there is enough piston to valve clearance.

 

[ironmansd]

I will call the shop tomorrow but i used the machine shop that a local diesel shop takes their 6.0 heads to, they should know the 6.0 head well, I don't know why I didn't think of it earlier but I took pics when I dissembled everything
my understanding is that it usually bends in the #5 cylinder which should be the drivers side back cylinder and it appears to be far enough down to not cause any issues :woot:

 

[snowmakerdrew]

I will call the shop tomorrow but i used the machine shop that a local diesel shop takes their 6.0 heads to, they should know the 6.0 head well, I don't know why I didn't think of it earlier but I took pics when I dissembled everything
my understanding is that it usually bends in the #5 cylinder which should be the drivers side back cylinder and it appears to be far enough down to not cause any issues :woot:

I thought passenger side was odd? And that would make it the 3rd cylinder as it goes drivers side 2,4,6,8 passenger 1,3,5,7. This is what I was always told for the 6.0.

 

[sinner6.0L]

even if you have the rocker arm removal tool it's still a pain in the ***. You have to watch the fulcrum ball as it wants to stay attached to the pedestal and could potentially fall into the engine. Also those black plastic rocker arm retaining clips are guaranteed to break.