I don't think the rocker should slide off...

[OldGray320i]

How tight should they be on the shaft? I've got some that move a little, some not at all, and one that is sliding down the shaft.

I should think the keepers would not allow any movement...

thanks.

[Gruelius]

if it aint broke dont fix it. pretty sure thats how they are on mine too.

[digger]

the clips help stop the rockers sliding along the length of the rocker shaft....

[jlevie]

The rockers will slide under the clips, but the clips keep the rockers over the valve stems.

[OldGray320i]

The rocker arm is sliding nearly off the valve stem, and really close to the cam lobe and the other rocker. If I allow that to continue, I'm going to wind up with a broken arm at some point.

Is my clip bad?

And, why is it with some clips the rocker arm moves not at all, some some just a little bit (and obviously with the one, I can push it rocker and clip as an assembly...)?

They should all be one way or the other, no (i.e. all of them move just a bit or none of them move)?

[Cabriolet]

pics plz,
did your rocker shaft(s) move? are you missing the bracket that holds the shafts in place?
#6?

[OldGray320i]

99% certain #6 is in place, but will get some pics tomorrow.

I "fixed" the issue a couple days earlier (i.e. slid the rocker - #1 intake - back over and repositioned the clip) but it's reoccurred - so maybe #6 is not there. However, if it were missing, wouldn't I have other rockers move also?

A couple others "wiggle" in the clip, but don't move.

[nando]

either the clip is missing, or it's worn out. the rockers shouldn't be able to move appreciably.

also make sure the keyway (#6) that holds the shafts in place is present.

[paperplane94]

what about #12?

[OldGray320i]

Pulled the valve cover today, and #5 intake was off it's rocker, so to speak. #1 intake, the previous culprit, was fine.

Turns out that a couple of my #12's were on wrong. Head was recently rebuilt, and when the machine shop put it back together they put a couple on "backwards".

Checked all 12 to see that the "knife edge" was in the slot on the rocker shaft, I don't anticipate any more issues (famous last words).

Thanks all!