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MIP CVD's are driving me nuts

Posted: Sun Mar 18, 2007 2:03 pm
by shodog
I have MIP CVD's on both my Son's and my T3's. I have a 19 turn motor and I have a 10Turn cranking out the speed. The problem is that I keep shearing the roll pins on the axles. I was out running them yesterday with my son and both our right side pins are sheared. Is there anything out there thats tougher?

Posted: Sun Mar 18, 2007 2:15 pm
by scr8p
hmm, i've never had that happen. maybe you could knock out what's left of the pin, and find some titanium round bar to use as a roll pin. cut it to length, and press it in.

Re: MIP CVD's are driving me nuts

Posted: Sun Mar 18, 2007 4:35 pm
by aconsola
shodog wrote:I have MIP CVD's on both my Son's and my T3's. I have a 19 turn motor and I have a 10Turn cranking out the speed. The problem is that I keep shearing the roll pins on the axles. I was out running them yesterday with my son and both our right side pins are sheared. Is there anything out there thats tougher?
By roll pin I assume you are talking about the pin on the outside of the hub carrier which connects directly to the wheel.
If that is the case then you need these:
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXEPF4&P=7
If you buy them from asociated it is like getting robbed, almost $1 each.
You can get steel dowel pins at places like smallparts.com for much less, under $0.10 each
http://www.smallparts.com/products/descriptions/dwx.cfm
The problem you will have with these is that they do not stay in the axle when the wheel comes off, so they are easy to lose, make sure you have fresh locknuts on the axles.
I ordered some from smallparts,com in 3/8 and 1/2" lengths, and use the longest that will fit in the wheel slot.
-Anthony

Posted: Sun Mar 18, 2007 4:48 pm
by scr8p
ya know what, i think i thought shodog meant that he's shearing off the pin on the bone at the outdrive. :oops:

Posted: Sun Mar 18, 2007 4:53 pm
by aconsola
That's what I thought from the topic title, but those should be solid pins not roll pins.
-Anthony

Posted: Sun Mar 18, 2007 5:00 pm
by scr8p
i have an old pair of race prep rc10 dogbones. they have a roll pin, instead of a solid pin. they're the only one i remember seeing like that. i think the bone itself is hollow, too. they're really light.

Posted: Sun Mar 18, 2007 9:46 pm
by shodog
It's the roll pin that fits in the slot on the wheel. they are so small in diameter that they continually break

Posted: Sun Mar 18, 2007 10:09 pm
by aconsola
then the steel pins will do the trick.
What some have done is to use a saw/dremel to elongate the slot in the wheel and then use 1/2" long roll pins, (which can be found at most well-stocked hardware stores.)
This method is especially helpful when the broken pin has mangled the slot on the wheel as it gives a nice fresh shoulder for the longer pin to rest against.
-Anthony

Posted: Mon Mar 19, 2007 1:39 pm
by shodog
Thanks for all the advice guys. I going to try and find a small steel pin to fit the hole.