Stuck lifter/ keep bending pushrods - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 02-27-2012, 06:10 AM Thread Starter
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Stuck lifter/ keep bending pushrods

Hello all, I have recently replaced the head gaskets and installed ARP studs on my 05 six liter. The install went fine with no issues. After I got everything back together I fired the truck up and it wasn't running right so I chaulked it up to air in the fuel and oil system and let it run for a little while. I Looked across the forums for what the issue could be and figured it must be a bent pushrod. After pulling the passenger side valve cover off I found the 3rd cylinder back exhaust pushrod was bent. I purchased 2 new because of one other posts (he bent one of the new ones). I straightened the old bent one and and attempted to roll the motor over to see if the lifter was stuck. The old one bent again. So I figured the old one was already compromised so I installed one of the new ones and only tightened the rocker down enough to put pressure on the lifter to try and bleed it down. After tighting it in increments over about an hour and leaving it over night I tried rolling the motor over again and it bent the new pushrod. I'm at a loss. Other than pulling everything apart and removing the offending lifter I don't know what else to do. I've looked in the hole were the pushrod goes and I can see the lifter. There isn't anything in there, other than the lifter and I've put a magnet down there and the lifter moves up and down in its bore. Any help would be much appreciated. Thanks
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post #2 of 5 Old 02-27-2012, 06:42 AM
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Sounds like you're trying to do heart surgery via the rectum. Gotta pull the head to see why the lifter is stuck. Hopefully, the lifter didn't destroy the lobe on the crank.


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post #3 of 5 Old 02-27-2012, 12:20 PM
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You have to put the dowel pin on the crankshaft pulley at 6 o'clock. Had the same issue. It is just a circular hole between two of the bolts that hold on the balancer. Very hard to see. Use a mirror.


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post #4 of 5 Old 03-02-2012, 06:20 PM Thread Starter
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Thanks for the idea! I continued further up the rectum...(via borescope in the pushrod hole) and found that the slot the pushrod goes through in the headgasket was slightly bent on one side and that was mis-aligning the pushrod (i.e. it was going towards the rear of the motor instead of to the lifter). I got the new pushrod (total about 6 bucks) and saved myself the 168 it would've cost to get a new headgasket. Thanks angain for the idea.
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post #5 of 5 Old 03-02-2012, 11:48 PM
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