eds96ragtop

Recently i installed a rebuilt engine in my 96 z28. When I first put it in the engine ran great. about 50 miles on the motor later it developed this hideous miss. well i checked all the plug wires and they were fione so I moved to thinking I had a stuck valve or something. well I pull the valve cover from the engine today and it turns out the rocker arm on the #8 cylinder exhaust had come completly off the valve. it is still bolted on but just turned sideways. the rocker appears fine and the pushrod is not damaged but i was womdering where to go from here.

Should i put the rocker back on and set the lash and hope it works or what?

Thanks
Ed

1984camaroz28

Roller Rockers or stock rockers

Jason Dove

Well when that happened on my Roller rockers I destroyed a lifter, and damaged 3 of the rockers (the self-alligning tabs basically sheered off).

1984camaroz28

you did not tighten them right thats why they came off

eds96ragtop

Stock rockers........

I did not tighten them the engine came pre assembled.

Ed

RamAir95TA

There's a chance that when they tightened the rockers down that the tip was not oriented properly on the valve stem. Sounds like a build error.

eds96ragtop

but my question still remains should I just put it back on or should I even bother looking further into possible causes?

my94blackz

In any new engine your supposed to adjust the rockers after bout 50-60 miles then keed a check on them. The lifters wil get broke in changine your adjustment.

Blownbird355

How do you break in a hydralic roller lifter???????

cmillard

Hopefully nothing broke but you won't know until you try to put it back together., that's what I would do. If you fragged something you sure would have had a lot more problems by now. Re-install it and see if she makes any noise. When I had a rocker get loose several years ago I definitely could hear it.

Hope this helps,
-Christian