Bosch diesel injection pump problem

[SoloTech]

My problem is that I've found the remainder of an o'ring inside the governor assembly and have no idea where it came from.

The pump is a BOSCH PE6P120A320RS7138-10.
Originally, the pump was spewing oil out of a small hole, just behind the engine stop linkage. I patched the hole, then removed the 22mm oil filler bung to see what had caused the oil spill, discovering the partial o'ring.

I still have no idea what caused the hole to be punched through.
Would any have any info?
Thanks.

 

[thepumpguysc]

The 22mm plug is sealed w a large paper ring..
The shut off shaft is sealed w an oring..
The 22 mm is not an oil fill..it’s access to the gov flyweights during calibration..

 

[SoloTech]

Would removing the governor housing get me access to the shut off shaft? I'm not sure what it looks like, not having removed the housing previously. I still can't find what popped the hole in the first place.

Also, as there's a fair amount of oil that flew out of that hole, do I refill from there? I read that there should be around 500mls of oil in there.

Thank you for any help.

 

[thepumpguysc]

What hole r u talking about.??
The pump is fed by engine oil.. there’s no need to put oil in it..
You’ll never get the cover off.. it’s a sequence..
Look at the shut off lever and shaft..u see the clip.?? they wear and need to be replaced..
See if u can see the other side of the shaft.
The clip may have come off..

 

[SoloTech]

Thanks again.

I've included a pic of the hole, next to the engine shutoff linkage.
Except for a small round metal piece on the control rail, I can't see what would have caused it.

 

[thepumpguysc]

I see it now.. the pump will have to be removed and sent to a diesel fuel inj shop.. to be repaired.. the hole came from something inside the gov trying to get out..
Don’t run it, for fear of a catastrophic failure.!!

 

[SoloTech]

I checked the circlip behind the linkage. It's still in place. I'll get a replacement for it.

 

[SoloTech]

I see it now.. the pump will have to be removed and sent to a diesel fuel inj shop.. to be repaired.. the hole came from something inside the gov trying to get out..
Don’t run it, for fear of a catastrophic failure.!!

Yes, I thought that might be the case. Was hoping to avoid a big bill. Looks like I'll be biting the bullet after all.

 

[thepumpguysc]

Start saving your pennies..