Rocker arm failure - Diesel Forum

EVtech · 03-08-2009, 04:40 PM

o4 F-550, 6.0L Motor was making popping sound so I pulled valve covers. I found 1 broken rocker arm. It looks like it just broke in half. The fac. manual says to remove cyl head because head bolt has to come out to replace rocker arm, it also says the inward head bolts can't be installed with the head on the engine because the head bolts hit the body of the truck. Does that mean that I have to pull the engine to replace a rocker arm

BP6.0 · 03-08-2009, 05:20 PM

I have read of guy's pulling the heads with the cab on. When I had headstuds put in they pulled my motor out of the truck, the tech said that it was easier then lifting the cab.

ZMANN · 03-08-2009, 05:41 PM

what a pain! what did your stud job cost this rocker arm job seems like a good excuse for the studs

fordboyyfm · 03-08-2009, 06:19 PM

ford came out with a tool to do it, you have to take that injector out and a peice bolts in the hole with the injector hold down and pushes the valves down so you can take the rocker off the bracket.

OT · 03-08-2009, 08:22 PM

EV..if body/e.bay same as F250..dont have to pull e. Look at "My Photos" Good luck!

EVtech · 03-09-2009, 07:15 PM

Thanks for the answers. The special tool sounds like the way to go. I don't know where to get one but maybe I can make one.