A question for the group-
I'm in the process of pulling my 97 80 series engine apart for a rebuild. Before I pulled the crankshaft out I noticed something that I thought was strange. Once the timing cover is off the crankshaft has (from front to back) a timing chain gear, rotor "gear" read by a sensor I believe, and the oil pump gear. Both the timing chain gear and the rotor are keyed into the crank and don't move, but the oil pump drive gear spins freely with the crank sitting still.
I took the timing chain gear and rotor off the crank and the oil pump gear just pulled off. No pins or keys to hold it in place. Can someone that has taken these engines apart tell me if this is normal or not? If it is supposed to be this way I'd also like to know why?
When I spin the crank by hand I can see that there is enough drag to move the gear along, but if I put my finger on it with very little pressure it stops spinning. It seems that the oil pump and power steering would need something with a little more push to keep them going.
Any assistance would be appreciated.
I'm in the process of pulling my 97 80 series engine apart for a rebuild. Before I pulled the crankshaft out I noticed something that I thought was strange. Once the timing cover is off the crankshaft has (from front to back) a timing chain gear, rotor "gear" read by a sensor I believe, and the oil pump gear. Both the timing chain gear and the rotor are keyed into the crank and don't move, but the oil pump drive gear spins freely with the crank sitting still.
I took the timing chain gear and rotor off the crank and the oil pump gear just pulled off. No pins or keys to hold it in place. Can someone that has taken these engines apart tell me if this is normal or not? If it is supposed to be this way I'd also like to know why?
When I spin the crank by hand I can see that there is enough drag to move the gear along, but if I put my finger on it with very little pressure it stops spinning. It seems that the oil pump and power steering would need something with a little more push to keep them going.
Any assistance would be appreciated.
