Valve Adjustment Procedure

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that's got to suck. my first question would be how did it break? after that you would probably need to get a whole *new* stand. as that looks like one of them parts that's machines as a set, and would not work so well with half a set from here and the other half from there.
 
well, crap, I don't know how it broke. The bolt that holds that side down is still there so I think that maybe the PO broke it and instead of getting a new piece just put the bolt back in and called it good. If I have to replace the whole stand then that is going to be a PITA. You don't think that the two peices would match if they were from different vehicles? I have limited mechanics skills, how hard is it to just replace the stand? Would I have to take apart the whole rocker shaft assembly? Thanks.
 
Do you know if you have an F135 or an F145 engine? I know I've got a pile of stands for the F145 and I can send you one for the cost of shipping. On the F135, I am not so sure, but I am sure they are different. My gut tells me you have an F135, becuase I don't remember that slot you drew in the F145 stand, but I do seem to remember it on the F135. PM me Monday night if you haven't located one by then.

Mark
 
red66toy said:
It's the original engine so I would guess a F135, not 100% sure though. Anyway I can tell? Thanks for the help, I will get back to you.
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Dometop valvcover with ribs, or flat top? 3 intake runners that seem to be equal diameter all the way from the plenum, or do the runners taper out?

Better yet, does it look like this!
SideEngine.webp
 
I can only think that happened from overtightening the bolt. It looks like a different bolt than the original is in there, too (has an indented center, rather than flat, like the other bolt).
 
Yes, but you can do it. And make sure you have a proper torque wrench.
 
Looking at the FSM, all I have to do to get it off is to remove the rockerstand bolts? The only thing that freaks me out is the springs on the shaft, i seem to have bad luck with taking apart things that contain springs. :D Is there anything that you would recommend replacing while the assembly is off? Thanks.
 
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Maybe someone with more specific knowledge of a 135 F can help more than I can, since I haven't yet pulled mine apart, but I would just suggest cleaning the oil passages while you have things off. As far as replacing the rocker stand, I think those two bolts are the only things. And the springs are held on with clips that are pretty basic. I did once manage to lose a clip, however. :doh:
 
Good call on the oil passages, there is probably 40 years worth of gunk in there. The more I look at the exploded veiw of the parts, the more I think I can do it( famous last words :D ). There are bushings for the rocker arms but at $8 ea from $OR, I am going to keep the ones in there. :)
 
I think I'd leave them alone, too.
 
Just had mine apart last winter.
Don't let the rocker springs spook ya, they aren't under much pressure.
The oil fitting which connects the two shafts has a spring in it that you need to keep an eye on but not too bad. Kinda like a small toilet paper roll.
Brog
 
Thanks man for the encouragment. I just thought of this though, what about the valve springs? Once I take the whole rocker assembly off won't they all spring up and close the valves? How would I get them back to their correct positions? Thanks, just trying to cover all the bases. :)
 
When you slide it all back together, the rocker arm assemblies will stop approximately 3/4" before the stands reach the head. Just slowly tighten the bolts on both halves evenly and lower the assemblies down to the head. The valves will re-compress. I think you are ready!

Mark
 
Here is just an update. I finally found a stand and I put it in a couple days ago. It was super easy to do. Thanks Mark for help with the stand. Here is the old stand. :eek:
 
That belongs inside a cowbell, hanging from your bumper! :flipoff2:
 
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