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Thread: hinge pin trouble.

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Old 07-10-2012, 10:06 PM   #1
Basher
 
Join Date: Mar 2012
Posts: 93
Default hinge pin trouble.

Im having trouble with my rear hinge pin coming loose every cpl laps. Anyone have a fix or areason why it keeps doing this ?
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Old 07-11-2012, 11:43 AM   #2
Racer
 
Join Date: Feb 2011
Posts: 114
Default Re: hinge pin trouble.

Totally common issue for the slash.
Will continue to happen as long as you use factory hinge pins.
Im sure there is more than one cure, I installed a STRC locknut hinge pin kit.
$16, Done.
Ive heard of guys putting threadlock/adheasive on the threads, wouldnt advise that, might need to remove it someday.
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Old 07-11-2012, 01:15 PM   #3
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Nitro stampede rear hinge pins is what I used in mine. Perfect length for the slash. They come with the alloy rear carriers. Uses a E clip on each end to keep it in place, haven't had any trouble losing them yet
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Old 07-11-2012, 01:41 PM   #4
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Default Re: hinge pin trouble.

I sanded the inside of the hinges until there was no binding to start to back out the screw, then placed a small dab of CA on the screw thread before threading them in, holds well & rear suspension feels "easier"
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Old 07-11-2012, 02:47 PM   #5
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Default Re: hinge pin trouble.

Common problem with Traxxas screwed hinge pin design. There are a couple of vendors that offer captured pin designs. You can also run a drill bit, or rotary tool bit (in a drill) through the pin hole on the bulkhead. Similar to sanding mentioned above. It serves 2 purposes: it frees up the hinge assembly, and it reduces the tendency for the pin backing out. I also used loc-tite for removable fasteners (it is blue stuff) as extra insurance. No issue removing the pins for maintenance, and now they come out when I want them too!
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Old 07-11-2012, 03:03 PM   #6
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Location: Charlotte NC
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I just use medium loctite, make sure its not a heavy bond just in case you need to work on it
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Old 07-11-2012, 05:47 PM   #7
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Default Re: hinge pin trouble.

STRC as mentioned above. Done and done. I had the same issue.

Last edited by Baja Bandido; 07-12-2012 at 01:55 AM.
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Old 07-11-2012, 07:13 PM   #8
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Join Date: Feb 2011
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Default Re: hinge pin trouble.

The strc stuff is pretty well finished. Highly polished and fits snug but smooth. No binding or stiction.
I would like to say Ive never lost an e clip, but Ive lost many. Bashing, not such a big deal, Raceing, huge deal.
Most race vehicles use captured pins and have for a while.
The problem with drilling/sanding is we are adding more play in an already sloppy,flexy,soft chassis.
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Old 07-11-2012, 07:16 PM   #9
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Default Re: hinge pin trouble.

Just had a thought, instead of drilling/sanding the plastic, try polishing the hinge pin.
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Old 07-11-2012, 07:45 PM   #10
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Location: San Gabriel Valley CA
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Default Re: hinge pin trouble.

Easy fix is to just put the hinge pin in from the opposite side its in now. I bet only one side gets loose right?
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Old 07-12-2012, 01:01 AM   #11
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Default Re: hinge pin trouble.

thanks for all the help ! and yes its just the same one comes loose every time.
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Old 07-12-2012, 03:11 AM   #12
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Location: San Gabriel Valley CA
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Default Re: hinge pin trouble.

Quote:
Originally Posted by DirtDevil View Post
thanks for all the help ! and yes its just the same one comes loose every time.
Thread it in from the opposit side and you'll be good to go. The free fix is the best fix imo lol.
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Old 07-12-2012, 11:10 AM   #13
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Join Date: Feb 2011
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Default Re: hinge pin trouble.

^^^^^point for that guy^^^^^
Same forces that loosen the right side, Tighten the left side.
Reverse the thread direction on the right side (put the pin in from the rear) and now its self tightening just like the left.

Touche Sir.........
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Old 07-12-2012, 10:32 PM   #14
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Join Date: May 2011
Location: El Cajon, CA
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Default Re: hinge pin trouble.

Had the same problem at first. Like the guys above, I just threaded it in from the other end. Works like a charm!
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