225 oiling

**timk** · 10-13-2016, 01:16 AM

Hope some one can help me.I have a buick 225 dauntless v6 oddfire in a jeep my problem is the right head was not getting any oil up to it,so I read and found out that they oil through a port in the front of the block and up a port in the head and into the first rocker pedestal and in to the rocker arms shaft.I took the head off and found that oil port was completely plugged I ran a drill bit through it ( the exact same size) and cleared it of the soft materiel that was in it.Then I bought a new rocker shaft rockers and pedestals assembly and put it in, now the head oils to much and pools oil up over the valve stems and it gets into the cylinders and smokes.I noticed that the rocker arm pedestal that is closest to the fire wall also has the same oil port.One of the questions I have is this a return port back to the crank case or is it just there. Seems like there is no place for the oil to return to the crank case util it gets high enough to flow through the passage ways that are up higher on the head.Or maybe there was some kind it restrictor that I drilled out. The other head dose not push oil out of the rocker shaft through the rockers like this head dose,I have read that the pedestals are interchangeable are the bolts that hold the pedestals down also interchangeable could that be the problem, the oil dose enter the supply pedestal around the pedestal bolt. Please help !

**Dr. Frankenbuick** · 10-13-2016, 03:51 AM

Check the Chassis Service Manual we have for 1967 in the Reference section of this site. There is a complete section on the 225 including the rocker arms and oiling system. There is a specific procedure for installing the rocker shafts according to the notch on the end. It can be backwards if done improperly. The picture of the oiling system for the 300/340 in the same manual is very similar to your 225.

**timk** · 10-13-2016, 04:40 AM

Thanks for responding.The notch is toward the front of the engine (fan)on the right head and facing the back (fire wall) on the left head.Dose the hole in the head on the back pedestal lead back to the crank case so the oil in the rocker shaft has a place to go other then just out the rocker oiling holes into the head valley and out the 2 large pathways (front and back) of head to the crank case.I am wondering if the back pedestal hole is restricted if it is a path back to the crank case.

**Dr. Frankenbuick** · 10-13-2016, 08:05 AM

The rear passage to the rockers just dead ends at the head gasket. This way you can swap heads and still have an oil path to the rockers. Only the large passages return the oil to the crankcase. The manual shows the notch on the right (passenger) side rocker in the front of the engine pointing up and to the fender. While the notch on the left (driver) side rocker is shown in the rear of the engine pointing up and to the fender. The shaft notch can correct front or back on the correct side but still be upside-down.