Help! PF9ss Issues

[user10]

Couple of useless points here. First, I'm not too impressed with the Dremel press. It's not a consistent pinpoint precision machine, at least mine isn't. Half of it is plastic. There's an obvious deviation from straight in the drill bit stroke as the lever is pulled. So, I've learned to find where the deviation is at minimum during the stroke and go that route. Also, there are several brass adjusting screws, that can easily be missed, that should be adjusted to gain the straightest stroke path as possible. There are at least three of them, I think.
Moreover, I've learned to sand each side of the jog slightly to help it lay perfectly flat as possible.
Next, was to stop using the Dremel station altogether, and use a decent drill press.

OP, if I were you, I'd sand the top of the housing, as you said you would. The height of the housing *may have something to do with it being a Gen 5 housing. A trick to gain more cruciform engagement was to switch from a Gen 3 housing to a Gen 4/5, so maybe housings after Gen 3 sit a little more proud, thus giving you some issues.

I would, however, like to hear more about why slides can get hung up and not return to battery more smoothly when the trigger is held to the rear. As far as I suspect, it has something to do with the verticle extension on the safety, but those two should operate smoothly together whether the trigger is pulled or not.

Edit: Google says when the trigger is held rearward, the verticle extension is at a higher point, thus increasing friction against the safety plunger.

I watched every video I could find on proper dremel press setup. I tightened every bolt, checked level, got the right bits, taped my jig and did EVERYTHING right, and still- the left hole is angled on BOTH frames!! No red jig material came up when I used the dremel press either, so my holes should be good. My pinholes seem to align as I can easily put the pin through just the frame when going from right-to-left. I am no longer using the dremel press. I have ordered a new housing and we will see if that fixes the problem.. Might have to get another one of my old pf9ss and try again with my trusty old hand drill.

 

[user10]

I remember reading somewhere (MGB forum?) that a traditional drill press could crack the frame due to the high torque / low speed. Whereas by contrast, the Dremel in the workstation was high-speed and wouldn't crack the frames. Can anyone out there confirm or refute this?

As I said in my resource video (linked above), I think it helps A LOT to minimize the plunge travel AND use a foot pedal / switch to avoid any lateral movement of the bit.

Your vid, MGBS pin jedi video were the ones I used. Oh and this guy on rumble? I think. He made a tutorial on tightening the bolts for first time quality.

 

[user10]

Someone correct me if I'm wrong here, but the rear rails will determine if the slide is too low on the trigger housing or too high away from it as well as relationship to the frame. The rear rails may be the entire problem here.

I had some spare rails and put those in. The problem was still there unfortunately.

 

[Racer88]

the left hole is angled on BOTH frames!!

That's weird. Did you use the same jig? Or new jig for each frame?

I have ordered a new housing and we will see if that fixes the problem..

Will be interesting. My bet is that the problem is still there. Keep us posted!