Longoni wood pin shaft problem

[Dean_H]

Hi everyone,

I have a problem. I own a Longoni Sorrento model butt, and a Longoni Black Fox butt. Both Longoni butts use a wood pin, meaning that the shafts are male and the butts are female, your basic wood pin shaft cues.

I have 5 shafts for the cues. All shafts are wood pin except the one I got from Tiger cues which is phenolic. One out of the four wood pin shafts fits comfortably in the butt. The other three shafts have the pins swollen a little bit ( it is now winter time ) and I am afraid of using because I don't want to damage the threads in the butt part of the cue. I am not sure if I should wait for summer time to use the other shafts, or If I should do a light sand of the wood pins? Has anybody else experienced this problem?

Thanks,

Dean

 

[billiard dave 7]

If they fit before, they may need slight sanding. I used graphite powder to keep it from happening again.

 

[3kushn]

I'm going to assume they're fine until you reach the unthreaded portion. At that point it gets tight. If so lightly sand only the unthreaded area, check then sand again.

If its tight in the threaded area its the same procedure but you should be even more anal. I'd take the easy route. Very lightly sand the OD and check to see if there's even a minute change. If not I'd fold some 400 and only sand the minor diameter trying not to sand the flanks of the thread. Check after minor sanding for any improvement. If non then go after the flanks.

What I'm trying to do is find where the problem is. Its probably the unthreaded area but if not very light sanding other specific parts of the thread geometry will tell you where else the problem might be. After that's determined then you concentrate there only.

If you should go too far and its too loose, you can always go back an build it back up with liquid type super glue. Light coat sand check light coat sand check..... a lathe would be best for this or if you have some way to hold and spin the shaft. All is not lost if you sand too much. Just go light and check often.

 

[Dean_H]

Longoni wooded thread shaft

Thanks Billiard Dave and 3Kushn,

@Billiard Dave I will look into graphite powder

@3Kushn it fells tight in the threaded area, it makes a tight squeaky sound when I try to screw in the shaft. I will try to get 400 Grit sand paper and lightly sand the non threaded area first to see if that helps.

In a Longoni Forum thread they were talkling about using bar soap as a lubricant on the shaft thread.

One of the Longoni Shafts used to screw in fine before, the other two are brand new.

 

[3kushn]

Thanks Billiard Dave and 3Kushn,

@Billiard Dave I will look into graphite powder

@3Kushn it fells tight in the threaded area, it makes a tight squeaky sound when I try to screw in the shaft. I will try to get 400 Grit sand paper and lightly sand the non threaded area first to see if that helps.

In a Longoni Forum thread they were talkling about using bar soap as a lubricant on the shaft thread.

One of the Longoni Shafts used to screw in fine before, the other two are brand new.

I'd be more inclined to try bar soap than graphite powder. Graphite works well as a lubricant but messy. Be careful. Test on something else first then make a decision.

I've heard that G10 pins are abrasive. Maybe the Tiger shaft kicked up some burs in the butt threads?? Just a wild guess here. Don't know if Tiger uses G10 or not.

Edit: If you've determined that it tight before the unthreaded portion is engaged then leave that alone.