Remove a rocker cover and measure one.
rocker arm stud is pulling out. how can i get it back in
You have to much lift on the camshaft lobe, They make a long slot rocker arm that looks like a stock rocker arm but it will not cut into the stud. The slot is where the rocker arm fits over the stud. If you are not haveing coil bind problems with the valve springs are broken springs then you can keep the cam that's in it and just use the long slot rocker arms are roller rockers to fix you problem.
No, It does not change the ratio of the rocker arm. ( lift or duraration ) They are designed to keep from cutting into the rocker arm stud if you have a 500 lift or more camshaft that's it.
== == The problem was a broken Rocker Arm Stud. Replaced rocker arm stud.
For the 1989 Chevy S-10 with the 2.5 liter engine, the torque setting for the rocker arm bolt is 22 ft. lbs. The torque setting for the rocker arm cover is 75-inch lbs.
Rocker arm stud nut or bolt 17 to 23 foot lbs
you have to remove the pressed in studs ,and tap the hole with the proper thread size for the threaded stud. this may require drilling the heads with the proper size drill, for the tap size you need. you must make sure that the new threaded studs are bigger than the pressed in ones, or you won't be able to thread the stud holes.
They are 7/16 on the short end and 3/8 on the long end.
drill a small hole through the stud boss,stud and tap a pin through both boss,stud. This is called stud pinning, you can get a kit from napa for about 20.00 bucks comes with studs,drill bit.
The function of a rocker arm is to control a valve in an engine. The rocker arm is a lever that rocks.
8mm-10mm typically
It could be a worn stud or worn nut. If it's really bad, you may need to install a new stud. If a new nut doesn't fit tight, you could try putting a jam nut on top of the rocker nut.