Originally Posted by equis.zero
To everyone mentioning the plug: it's not that hole, it's leaking from the tiny hole right behind the solenoid.
I have replaced the bolt sail oring several times with no success.
I also tried replacing the seat retainer in the LPR, no luck with that.
I'll take a look at the HPR piston oring.
Thanks everyone for your suggestions.
I don't know if this will help at all...but I had a similar problem with my DM6....I had a leak near the solenoid between the noid and the on/off plug....I took it out, swapped out all the rings, lubed it up and put it back in....then I blue loctited the screw that holds it in place, and screwed it in hard so it in effect becomes a continuous flow plug.....it seemed to stop the leak....
Before I did this, my DM wouldn't even cycle, now it's cycling again....give that a whirl and see if that helps.....that is, if the leak is in the same place.