Notices

crimp test

Old 03-13-2004, 12:42 PM
  #1  
Y&R
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Mar 2004
Location: Charleston, SC
Posts: 992
Default crimp test

Had some free time this morning and performed my own version of Sportfishing/Marlin Mag's crimp test. I wanted to see if double crimps made any difference over one crimp and to determine approximately what the best pressure was required to achieve an optimal crimp. I only used 100lb Suffix mono and a decent pair of handheld crimpers on the 0.5-1.0 groove. The crimped end of the mono was wrapped around a pole and the other end I just held onto with a pair of gloves. After the first crimp rocketed off the mono back at me I donned a pair of safety glasses which I recommend any of you do if you're going to try this out.
As most would've guessed there wasn't any extra advantage to using two crimps over one ASSUMING the crimps were properly done. It took me about five mins to determine what was the best pressure to apply. I had a big problem with under crimping initially which caused the mono to slip tight against the pole and then break inside the crimp. I only overcrimped twice and once was when I squeezed as hard as I possibly could after being fed up with my crimps slipping. I was always worried about overcrimping but I found that it's much easier to undercrimp than overcrimp in my case. Anyway, I think it's good idea to perform a simple little crimp test like this to get an idea of a proper crimp job. Hope this helps someone.
Y&R is offline  
Old 03-13-2004, 01:13 PM
  #2  
Senior Member

 
Join Date: Mar 2003
Location: Quebec, Canada and Pirates Cove, OBX, NC
Posts: 20,170
Default RE: crimp test

You're a smart man . . . you have eliminated a weak link in your system . . . may save you a trophy :grin good strategy :grin
auguste is offline  
Old 03-13-2004, 03:31 PM
  #3  
Senior MemberCaptains Club Member
 
Join Date: Feb 2001
Location: Sanford N.C. USA
Posts: 1,329
Default RE: crimp test

I agree, if you don’t test your crimps you don’t know how strong they are. I found that burning the end of the mono to form a ball can prevent the line from slipping through the crimp. chip.
chip is offline  
Old 03-13-2004, 05:39 PM
  #4  
Y&R
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Mar 2004
Location: Charleston, SC
Posts: 992
Default RE: crimp test

I've thought about melting the tag end into a ball but I was worried about heating and damaging the main line too much. I guess that's another excuse to do more tests.
Y&R is offline  
Old 03-13-2004, 05:49 PM
  #5  
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: Feb 2003
Location: Hammond, LA
Posts: 17,418
Default RE: crimp test

Y&R melt the tag end with plenty of slack thru the sleeve before you crimp
while it's soft, stab it down on the end of your lighter & it'll make a nice stop
then, pull it back to the end of the sleeve & crimp
cgrand is offline  
Old 03-13-2004, 06:08 PM
  #6  
Y&R
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Mar 2004
Location: Charleston, SC
Posts: 992
Default RE: crimp test

Guess I would've thought of that eventually... . Thanks. By the way, if any of yall want to check out the article that SF and Marlin mag did on the crimp testing it was archived on one of their websites (maybe both).
Y&R is offline  
Old 03-13-2004, 08:37 PM
  #7  
Senior MemberCaptains Club Member

 
Join Date: Jan 2004
Location: Whiteville, NC
Posts: 412
Default RE: crimp test

I am pretty new to this, but I have been making rigs for tuna/dolphin/wahoo (50 lb. class). I have tested my crimps using a scale, and they hold up under 30lbs of pressure. I haven't actually tried to figure out whether they would give before the line failed. I figure that 30 lbs. should be sufficient considering my drag will be set in the 12 -15 lb range. Is that a logical conclusion? Or do I need to do more testing?
fowl intent is offline  
Old 03-13-2004, 08:39 PM
  #8  
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: Nov 2001
Location: Summerville, SC
Posts: 2,510
Default RE: crimp test

Good test, however the real test is impact loading. Try slipping a barbell weight over the line and dropping it onto a washer above the crimp. That will really tell you how it will hold up with the big bull starts shaking his head in midair!
tidester is offline  
Old 03-13-2004, 09:19 PM
  #9  
ccm
Senior MemberCaptains Club Member
 
Join Date: Jan 2003
Location: chatham, mass.
Posts: 489
Default RE: crimp test

What are you using for a crimper? the cheap ones aren't worth it. You could do a better job with a rusty pair of pliers. A good crimper will run you at least $75. and more likely 200.
ccm is offline  
Old 03-13-2004, 10:37 PM
  #10  
Y&R
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Mar 2004
Location: Charleston, SC
Posts: 992
Default RE: crimp test

Fowl Intent,
Your rigs are going to undergo greater than 50lbs of pressure when a fish strikes and/or makes a sudden long run assuming the fish is relatively large. The leader has to be able to absorb that initial shock. IDEALLY, the leader should maintain it's full breaking strength after being crimped. Are you using 50# mono leaders? That's extremely light, especially for wahoo. That's as heavy line class as a lot of guys use on their reels. I've used 50# wire for live baiting but nothing ever that light offshore in terms of mono leaders. I guess you could do it but I feel like you'd get cut off a bunch.

Tidester,
I think your test is good to determine if you've undercrimped but doesn't accurately portray the forces at play when a fish is hooked. The barbell acts directly on the crimp by pushing it down but the tests I conducted are more characteristic of a fish on the end of the line with the exception that I'm creating the force and not the pole. To kind of blend our two experiments together. The best thing to do would be thread the leader through the weight and crimp. Then drop the weight. That way the most pressure is applied on the loop and the crimp. In either case, I think the difference b.w the test I performed and the blended version of our tests together is fairly minimal.


CCM,
You're telling me I need to get a bench crimper to do reliable crimps? Personally, for someone who doesn't fish in marlin tourneys, I think a bench crimper is a waster of time and money seeing how I can do effective crimps with my crimpers that you can currently purchase at Boaters World online for $35. I think as long as the crimper is smooth all the way through the motions so you can apply even, consistent force and also has the necessary grooves for your sized crimps and mono, then I don't see why I need to spend an extra $40 or $165. I think the most important factors beside the two mentioned above are the leader and sleeve diameters. If you're using really heavy mono leaders it's a different story and a bench crimper would probably be worth it but since I'm only using 100-200# I don't think it's necessary.
Y&R is offline  
Old 03-14-2004, 12:12 AM
  #11  
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: Feb 2003
Location: Hammond, LA
Posts: 17,418
Default RE: crimp test

a bench crimper is usually only needed in tackle shops and for professional charter operators...

a cup to cup hand crimper and double barrel sleeves are the way to go for the rest of us
cgrand is offline  
Old 03-14-2004, 08:25 AM
  #12  
Senior MemberCaptains Club Member

 
Join Date: Jan 2004
Location: Whiteville, NC
Posts: 412
Default RE: crimp test

Y&R,

I am using leader of 100 & 120 lb. flourocarbon, attached via albright/bimini twist to 50 lb mono. 100 lb swivel crimped to end of the leader to attach rigs. The crimps aren't failing at 30 lbs, I just don't have any way to test beyond that weight with any measure of accuracy. I will look for a heavier scale, in the meantime any other suggestions?
fowl intent is offline  
Old 03-14-2004, 08:31 AM
  #13  
Member
 
Join Date: Jan 2004
Location: southport nc
Posts: 33
Default RE: crimp test

fowl intent,

where do you fish out of? i from whiteville but live in southport now.

john
never hesitate is offline  
Old 03-14-2004, 11:42 AM
  #14  
Y&R
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Mar 2004
Location: Charleston, SC
Posts: 992
Default RE: crimp test

Fowl Intent,
Sorry I misread your first post. I thought you were saying that you used only 50lb leaders. I'm more or less using the same setup you've got. Anyway, if you want to be super precise get a bigger scale but if you just want to know if your crimps are up to the task just perform the same test I conducted to see if the leader breaks before the crimp slides. If the crimp slides then you know that you undercrimped. If the leader breaks INSIDE the crimp then you overcrimped. If the leader breaks OUTSIDE the crimp then you obtained a good crimp. I don't think you need a super expensive pair of crimpers unless you really want them. Just like Cgrand said, "a cup to cup hand crimper and double barrel sleeves are the way to go for the rest of us." Mine is the exact same one as the Billfisher Deluxe Hand Crimper except it's got a red handle and sold by a different company. Works well and doesn't cost half your soul to the devil just to squeeze a piece of metal and some mono.
Y&R
Y&R is offline  
Old 03-14-2004, 12:31 PM
  #15  
Senior MemberCaptains Club Member

 
Join Date: Jan 2004
Location: Whiteville, NC
Posts: 412
Default RE: crimp test

Y&R, Thanks for the info, I will test my crimps as you suggested.

John, I usually trailer my boat to Holden Beach, but want to test the waters this year out of the Wilmington area. Always looking for someone to help with expenses on my boat, or vice versa.
fowl intent is offline  
Old 03-14-2004, 12:35 PM
  #16  
Member
 
Join Date: Jan 2004
Location: southport nc
Posts: 33
Default RE: crimp test

give me a call i keep my boat in the water year round. offshore is starting to warm up and should just get better. 800-888-3707.

john
never hesitate is offline  
Old 03-14-2004, 12:40 PM
  #17  
Senior MemberCaptains Club Member

 
Join Date: Jan 2004
Location: Whiteville, NC
Posts: 412
Default RE: crimp test

Will do John. Look forward to it.
fowl intent is offline  
Old 03-14-2004, 03:13 PM
  #18  
Senior MemberCaptains Club Member
 
Join Date: Jul 2003
Location: UK
Posts: 408
Default RE: crimp test

Here's a link to a short article that I wrote on crimping correctly. It may be of help to some of you

http://www.leadertec.com/crimp_techniques.html

Spike
Captain Spike is offline  
Old 03-14-2004, 03:50 PM
  #19  
Senior MemberCaptains Club Member
 
Join Date: Mar 2002
Location: NC
Posts: 1,033
Default RE: crimp test

Ah, a subject finally pretty familiar to me. I use one of the fancy bench crimpers pretty much exclusively in the BBC, Boys Scout, and the other high dollar blue marlin tournaments. Other than that, as a lot have said, I'll use a few pairs of hand crimps and a lot of practice.

The crimp is only rarely going to break on the strike as you have zillions of yards of stretch and drag in the HOH from the line itself. Plenty of shock absorber 99% of the time. If you break someting at the leader on a strike you oughta get an ass whippin' as there was a major wrong done by someone!

Most of the problem comes at the wire. No rod to help, no line in the water to stretch. Just you, your gloves and your Aftco. This is where you'll max out your gear. When the 300 pound rat male marlin is going nuts back and forth right off the transom [showing you zero respect I might add], that's when you will have a failure. When the tuna is doing the death circle and you tell the gaff man "ok, I'm gonna bring him around this time, head shot only"...and you put the heat to him to stop him from making one more loop, that's when you are maxing out the gear.

I like the test results. Personally, when I am doing something like bluefin fishing, I'll double hand crimp. Just gives me more confidence on the wire I guess when wiring something bigger than usual, not to mention they are pretty green at the boat anyway.

Like a lot have said, knowledge of what you are doing goes a long way. As a good wire man, you gotta know when too much is too much and also when you can dig your heels into the corner of the pit and say "Hell no I don't think so." Y&R, I don't know you from Adam but I gotta say it's stuff like you did that will put more fish in your boat while the other guys are scratching their heads ready to go pound AJ's on the reef!!!!!

Pretty Work!
TB
Tom Bare is offline  
Old 03-14-2004, 06:36 PM
  #20  
ccm
Senior MemberCaptains Club Member
 
Join Date: Jan 2003
Location: chatham, mass.
Posts: 489
Default RE: crimp test

Definately dont need a bench crimper. The problem with the cheap crimpers is that after a while the spaces are out of the tolerance and your crimps slip. Pay once now or twice later.
ccm is offline  

Thread Tools
Search this Thread