Hey everyone had to remove the head on my i6 200. Had some exhaust bolts break off in it and had to have them machined out. Will be picking the head up tomorrow. Now when I removed it i just took out the bolts holding the head on and lifted it out. After reading around and such it seems I should have removed the rockers and taken the push rods out. Im guessing in order to reinstall the head i have to removed the rods and the rockers. If im wrong let me know. I also need to know the sequence and torque amount for the head bolts and the torque amount for the rockers if i need to remove them. thanks!
Yes.....remove the rocker arm assembly and the push rods. I don't know the head torque sequence or foot pounds, but am sure somebody will post it up for you. I recommend getting some guide bolts to help you set the head down correctly onto the engine and to hold the head gasket in place.
Here is your rocker arm tightening procedure: http://1bad6t.com/Maverick/repair/engine_repair_08.html
Here are all the torque specs and when you scroll down you will find the torque sequence you need to follow for re-installing the head. http://classicinlines.com/SmallSixSpecs.asp#TorqueSpecs
Ok just to make sure I have the rocker tightening sequence correct. - I make a mark/line at the tdc mark when it reaches the "pointer". - Make two more marks equally spaces from that mark. - Starting at the tdc mark start with rocker on the 1 cylinder - then turn the engine clockwise to the next mark, "b", and do cylinder 5's rocker - turn again and do the next rocker in the sequence. etc If this is correct let me know! Also if anyone has the head tightening sequence thatd be helpful too!
You most likely have hydraulic lifters and non-adjustable rocker arms so there is nothing to adjust. Just bolt on the rocker assembly and tighten to specs...no sequencing or turning of the engine required at all. If you have adjustable rockers then follow this procedure for adjusting the valves. http://classicinlines.com/ValveAdj.asp
Then the Ford manual is wrong for what I posted? I don't think it is a matter of adjusting, just tightening them when the lifter is on the base circle. Which is the reason for the engine rotation. But I am not an inline six guy. Take Gene's advice over mine! And the article you posted says to rotate the crank.
The Ford manual article is talking about adjusting the rocker arm adjusting nut...no I6 Mavericks from the factory came with adjustable rockers. Now if someone had installed adjustable rockers at some point then the article has some validity.
ok thanks! Im glad i dont have to do all of that stuff. Less work for me! For the steps for tightening im guessing thats do the sequence tightening them all to 40-45, then do them all to 55-60, and so on. Also If anyone is interested I came up with an easy way to install the head by yourself since it is quite heavy. I put a tie down strap (the kind you tighten by pulling) from each hood hinge on the body then put the back of the head resting on that. got the front lined up then slowly lowered the rear on to the guide pin.4
The Manual is talking about torquing down the rocker shaft...not adjusting valves. "When the rocker arm is reinstalled on the engine, the proper valve setting is obtained by tightening the rocker arm to a specified limit. With the lifter fully expanded, if the camshaft lobe is on a high point, it will require excessive torque to compress the lifter and obtain the proper setting. Because of this, when any component of the valve system has been removed, a preliminary valve adjustment procedure must be followed to ensure that when the rocker arm is reinstalled on the engine and tightened, the camshaft lobe for that cylinder is in the low position."
Yep. This way the lifters position will allow you to torque the rocker arm bolts to spec. Without doing it this way you will reach the torque limit before the bolts are tight.
