Speedline Maxima filler barrel thread size

[ralfstc]

Hi folks,

 

I came across a 1941 Maxima in slightly sorry shape. Amongst other things, the internal thread in the barrel that engages with the jam nut/collar is damaged. I was wondering if one of our resident geniuses might know the thread size so I can pick up a thread chaser?

 

Many thanks,

 

Ralf

[FarmBoy]

2 hours ago, ralfstc said:

Hi folks,

 

I came across a 1941 Maxima in slightly sorry shape. Amongst other things, the internal thread in the barrel that engages with the jam nut/collar is damaged. I was wondering if one of our resident geniuses might know the thread size so I can pick up a thread chaser?

 

Many thanks,

 

Ralf

Parker used non standard taps. 
 

 

[ralfstc]

12 minutes ago, FarmBoy said:

Parker used non standard taps. 

I'd heard that. But what is it? What other options do I have?

 

The filler was glued in, and the threads have the nasty stuff clogging them up.

 

It was not done neatly.

[VacNut]

Send it to a Farm. Boy, will they do a good job restoring the threads…

[VacNut]

What color is the barrel? If the seat has been damaged, you may need to source a replacement barrel

[FarmBoy]

32 minutes ago, VacNut said:

What color is the barrel? If the seat has been damaged, you may need to source a replacement barrel

If a barrel isn't available or practical, you can bore out the back end, sleeve it and cut a new seat and threads. 

Most likely the threads are just dirty.  Try a stiff bottle brush of just the right size to clean them out.  I'd guess a rosin based sealant or just decomposing jamb nut.

[ralfstc]

Well, Farmboy was certainly looking like a good option, and I've heard many excellent things 🙂 In this case, though I was incredibly lucky. A good bit of careful work with an exacto knife chipping away at the stuff and then using the jamb nut as a thread chaser on the body (1/2 turn in, 1/4 turn back, remove and clean and start again) and it went together. 

 

It could have been rosin based sealant since it did seem to soften a little with (a lot) of heat, but the darn stuff was everywhere.

 

The pen body is now sitting on the kitchen counter full of water to see if anything leaks . . . .

 

Thanks for your thoughts!

 

Ralf

[VacNut]

The pen is from 1941. Could the pen have been modified by a trained pen technician during the war?

I have a Silver Max that was “professionally” converted to a push button filler with a j-bar. I assumed they couldn’t find a replacement speedline filler so the tech converted the feed and section to accept a sack. It is so well done I left it as-is.

The great thing is the sack kept the ink from touching the barrel, so the transparency is excellent!!

[ralfstc]

I like the idea of the transparency. In the same lot as this pen was a 1935 Slender (I think, I need to double check) that I don't think was ever inked. The sac was soft and pliable, the filler was perfect shiny chrome and the barrel is beautiful. It's quite something to see them as they were meant to be.

 

As for the maxima, somebody has stripped off all the trim, I assume because they knew about the filler issue and decided to turn it into a parts pen. I'm well on the way to reversing that-- it fills really well and seems to keep it all inside!