460 oiler problem

[Sstreeprollc]

Hey anyone who’s an expert on 460s. Have plenty of experience building. But I am stumped on this. Rebuilt a 460 bottom up with all oem parts. Saw runs great. The only problem is I can’t get oil to the hole that pushes to the bar. It leaks out or pumps out of the bottom of clutch. I have new oem pump. Oil hose and gaskets. Case was used but in great condition. I’ve blown air through the wholes and tried two different pumps. It’s the third saw I built from bottom up this past winter. Any suggestions would be great. Haven’t even been able to run a tank through it.
Help please kind folks.

 

[atpchas]

Did you perhaps not install the sealing ring that goes between the pump and the crankcase?

 

[Sstreeprollc]

The sealing ring? Are you talking oil seal? I’m looking up schematics to see if I missed a part. What does it look like?

 

[Sstreeprollc]

Did you perhaps not install the sealing ring that goes between the pump and the crankcase?

After looking it up, that is installed. I can’t understand why it’s only pumping out of the bottom. I can blow air through the oiler hole and no clogs. At a loss.

 

[atpchas]

I'd remove all the parts outboard of the pump/worm (drum, clutch, washer) and jury rig some way to drive the worm with a drill. With luck, source of oil will become apparent.

 

[muddy42]

As above, get everything really clean before the experiment, this helps show where the oil is getting to. Or just run the saw in an upright position.

Also instead of air, shoot WD40 oil through all the pipes and the pump itself, when installed. This might show where the oil is going.

Did you replace the worm gear, these are known to fail.