Mekanik Posted January 14, 2011 Share Posted January 14, 2011 How the hell does this happen? This is about my 50th head gasket job on a 6.0L and I’ve NEVER had any problems like this before. I always double check the placement of the push reds, rockers and valve bridges, even on this one but obviously not good enough. Has anyone else here done this? I wonder if I were to crank the engine over before I put the oil rails on if I would have caught it, because the compression didn’t sound right when I went to start this truck after I got it together. Quote Link to comment Share on other sites More sharing options...
joshbuys Posted January 14, 2011 Share Posted January 14, 2011 did it once on a head gasket job, done tons previously without a problem, but once did basically the same thing on cylinder 8 exhaust rocker, had to put a new rocker on it! OOPS!! Quote Link to comment Share on other sites More sharing options...
Mekanik Posted January 14, 2011 Author Share Posted January 14, 2011 Me too; the tip came apart and luckily I was able to find the little ball on the end and the retainer. What did you do differently to prevent it from happening again? Quote Link to comment Share on other sites More sharing options...
eastendpowerstroke Posted January 15, 2011 Share Posted January 15, 2011 After my first and only bent pushrod, I allways turn the motor by hand with a breaker bar after the rockers are on and before I install the oil rails at least two times around. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted January 15, 2011 Share Posted January 15, 2011 Got ya beat, I spin it 16 times. Seriously, I leave the glow plugs out and watch each valve set open and close. Spind so much that it will prime the oil filter pad. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted January 15, 2011 Share Posted January 15, 2011 Quote: Spind so much that it will prime the oil filter pad That must be a Southern term. Quote Link to comment Share on other sites More sharing options...
jimmy57 Posted January 15, 2011 Share Posted January 15, 2011 I totally get it. You spinded it so much so you could tell if it was fixin' to break anything. If you don't do this you could be taking it back apart d'rectly. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted January 15, 2011 Share Posted January 15, 2011 Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted January 15, 2011 Share Posted January 15, 2011 The only spinding I do is to access the torque converter studs. Never had a problem. Of course that does not apply when doing head gaskets. The only problem like this we have ever encountered in our shop was then the clown we used to work with pulled heads off with the injectors and rockers still in the heads and re-installed them that way. Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted January 15, 2011 Share Posted January 15, 2011 We had one tech that, without fail, would bend a pushtube every time... The lastfew years he was with us he would call me to install his pushtubes for him... Quote Link to comment Share on other sites More sharing options...
joshbuys Posted January 15, 2011 Share Posted January 15, 2011 We had one tech that, without fail, would bend a pushtube every time... The lastfew years he was with us he would call me to install his pushtubes for him... I bent 2 pushrods 1 time - can't even count how many head gaskets I had done prior to this without issue, and without clocking the motor to the 6 o'clock position, since then, every motor gets clocked to the 6 o'clock position, and I haven't had a problem since!! Quote Link to comment Share on other sites More sharing options...
mchan68 Posted January 16, 2011 Share Posted January 16, 2011 We had one tech that, without fail, would bend a pushtube every time... The lastfew years he was with us he would call me to install his pushtubes for him... Awwwww how cute Jim. Do you have to hold his hand and change his diapers too? Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted January 16, 2011 Share Posted January 16, 2011 Mike... a goodly part of my job is "babysitter".... also in my repertoire are putting out fires and taking one for the team... Quote Link to comment Share on other sites More sharing options...
2006 Posted January 16, 2011 Share Posted January 16, 2011 I always spin the engine over several times by hand after the first stage of torquing the head gaskets. I make sure all the valves open and make sure theres a little slack in the rocker when the valve is closed. Never had a problem since. Don't want to install a e-series engine and find out later you missed positioning a bridge or pushrod. Quote Link to comment Share on other sites More sharing options...
Mekanik Posted January 16, 2011 Author Share Posted January 16, 2011 The only problem like this we have ever encountered in our shop was then the clown we used to work with pulled heads off with the injectors and rockers still in the heads and re-installed them that way. I've seen that move. The guy saved a ton of time by not removing the rockers from the heads. The truck ran terrible and three new injectors didn't even make a difference. About a week later the truck was fixed when he replaced three pushrods that were bent like crazy. for the record I ALWAYS turn the crank to the propper position before re-installing the heads. Quote Link to comment Share on other sites More sharing options...
cbriggs Posted January 17, 2011 Share Posted January 17, 2011 I had a bridge not sit onto one of the valves recently. The top valve stem was in the pocket, but the bottom valve stem was on the edge of the bridge. Same deal, I heard it when I was cranking so I ran relative compression and found it. No other damage caused. Quote Link to comment Share on other sites More sharing options...
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