Not sure if anyone else has had this happen...
The rockers in these motors are a little different than normal k20 vtec rockers, they are aluminum and i broke one...
Notice the spring laying in the head
in the next pic notice the pin hanging out the side of the rocker, hitting the cam cap on the right.
Turns out there is a c-clip inside the pin bore that holds everything together. They are not closed off solid like the older steel rockers.
here the c-clip came out, the washer, spring, and small vtec pin came out. the long pin you see there is the middle pin that normally sits in the middle vtec rocker.
i noticed something wrong b/c I had a slight missfire at idle and every now and then i'd get a hard misfire (i guess the pin was catching the head and popping the intake valve open) the missfire at idle was due to the right rocker and the vtec rocker being stuck together, so that one of the valves on that cylinder was always in vtec.
Of course honda wont warranty it due to there being an intake on it..
New rocker will be here tomorrow, and I put some supertech springs and retainers in it today.
Good news is that standard k20 springs, retainers and spring seats work just fine.
The rockers in these motors are a little different than normal k20 vtec rockers, they are aluminum and i broke one...

Notice the spring laying in the head
in the next pic notice the pin hanging out the side of the rocker, hitting the cam cap on the right.

Turns out there is a c-clip inside the pin bore that holds everything together. They are not closed off solid like the older steel rockers.
here the c-clip came out, the washer, spring, and small vtec pin came out. the long pin you see there is the middle pin that normally sits in the middle vtec rocker.
i noticed something wrong b/c I had a slight missfire at idle and every now and then i'd get a hard misfire (i guess the pin was catching the head and popping the intake valve open) the missfire at idle was due to the right rocker and the vtec rocker being stuck together, so that one of the valves on that cylinder was always in vtec.
Of course honda wont warranty it due to there being an intake on it..
New rocker will be here tomorrow, and I put some supertech springs and retainers in it today.
Good news is that standard k20 springs, retainers and spring seats work just fine.