View Full Version : Interchangeability: Screw, locking, hinge pin: differences?
September 15, 2000, 07:35
I'am new to Fals and reciently recieved a parts kit and Imbel reciever. In the kit, the hinge pin was screwed together. I am having trouble seperating the two parts of the pin. The possibilities are that some dirt or rust has siezed the threads (Ican deal with this) or that there is more to this pin than I thought. The male part of the pin has a large slot that a quater could fit for turning, however, the female part has a small hole in the center and what appears to be a slotted screw in the bottom of the hole. Before I crank down and get serious on them and possibly damage the pin, I would like to know if this small screw is part of the male half of the pin or a set screw to lock the two halfs together. Any help would be appreciated.
[ August 05, 2001: Message edited by: gary.jeter ]
[ August 07, 2001: Message edited by: EMDII ]
NZ L1A1 Collector
September 15, 2000, 07:41
Pinch the the "slotted screw" halfs together before you start to unscrew the male section it should unscrew then.
The two halfs are designed to stop the screw unscrewing when the rifle is in use.
Rifle, 7.62 mm, L1A1 Collector & Researcher.
[This message has been edited by NZ L1A1 Collector (edited September 15, 2000).]
Mike in GA
September 15, 2000, 08:02
You must be refering to the bifurcated sex-bolt assembly, right? http://www.fnfal.com/forums/wink.gif
Mike in GA
September 15, 2000, 08:02
[This message has been edited by Mike in GA (edited September 15, 2000).]
September 15, 2000, 08:35
Kevin, I've read your reply to this before, about pinching the pin together. Do your rifles have longer pins? Mine don't protrude from the hole at all. Mine does require a little bit of extra force, then I feel it pop free, sort of like a detent ball might feel.
hsp223, definitely DO NOT put a quarter in one side and a screwdriver in the other. It's the same part. I push in on the smooth side with my big fat thumb, and crank with a quarter on the other side.
September 15, 2000, 11:41
Kevin, just how do you pinch the two halfs together? Like ByronF says, mine don't protrude from the hole, in fact they are about 3/16 below the surface. Is there a special tool for this? A pair of tweezers might work but I think they would not be strong enough to pinch the sides and there is no place for them to grab. The top of the "slotted screw" is flat. Perhaps I can just push straight down on the "slotted screw" with back end of a drill bit and twist the other end at the same time.
September 15, 2000, 13:33
The screw head side has the the piece that prutudes. I've had several that were a pain to seperate. I soaked them in mineral spirits overnight and then soaked in WD40. I did need to hold the other side with pliers and unscrew it.
Dan at VOW
September 15, 2000, 14:32
Sorry to tell you guys this, but us inch owners have got a longer screw, through the hinge pin that is. FN used one that had a longer shaft, but switched over to the shorter model, can't remember when, but the longer one is marked as obsolete. Dan
September 18, 2000, 10:22
You mean you have a LONGER SEX BOLT?! http://www.fnfal.com/forums/biggrin.gif Damn, talk about sex bolt envy http://www.fnfal.com/forums/wink.gif. Actually I believe I've figgured out the problem. The threads have siezed. I can see about 3/8 inch of thread on the base of the male bolt. this means that I could screw it in a little over 3/8 of an inch to seat the male and female halfs together. This would allow the slotted end to come nearly flush with the outside of the female head and thus allow it to lock in place. I just have to do some judicious soaking in liquid wrench, maybe alittle heating to get the two halfs apart. Thanks all.
August 05, 2001, 10:32
moved to FAQ
vBulletin® v3.8.7, Copyright ©2000-2013, vBulletin Solutions, Inc.