Yokomo hinge pins alternative
02-17-2011, 01:38 PM
#1
Yokomo hinge pins alternative
I'm looking for an alternative to the original steel hinge pins in my Yokomo Type C drift chassis. The steel ones are rusting so I'm looking for titanium.
The pins are 2.5mm diameter so do any other cars share this size pin that titanium hinge pins are readily available for.
The longer pins are 56.5mm long and the shorter pins are 29mm long.
Thanks.
The pins are 2.5mm diameter so do any other cars share this size pin that titanium hinge pins are readily available for.
The longer pins are 56.5mm long and the shorter pins are 29mm long.
Thanks.
02-17-2011, 03:38 PM
#2
Not sure if that's exactly right, but you know better.
I have an SD-SSG which I suppose should have the same size hingepins. They are 3mm inboard, and 2.5mm outboard. Now that I think of it it may actually be something weird like 2.4mm outboard.
Nevermind that though.
One option readily available is to go buy a decent tool with the right size shank (pin punch for instance, but can be a screwdriver, etc.). They are not going to be titanium, but tool steel if they're a good quality, and that's as strong as it gets (albeit heavier than titanium). Cut the shank to desired length and you have your hingepins. The advantage is they are precision ground to size.
Another idea is to use drill bits. Hard to find in that length since you can only use the round part of the shank, and a compounding problem is that only part of the shank is hardened, so it will bend past that point.
Looking for titanium is a good idea, but can take a while.
I have managed to find titanium rod eventually on ebay, but even though it was advertised as 3mm diameter in fact is was 3.14 for one of them and the other was 3.12mm. That is enogh to make the suspension arm articulation stiff. I had to sand them down and it's a PITA because you have to keep it round and consistent along the length.
Even aftermarket parts made by serious companies have this problem (i.e. they're a fraction too large). I bought OEM Traxxas suspension hingepins (Titanium) with this problem, I have bought Lunsford hingepins with this problem. There is nothing else you can do about it then but sand them down with a lot of patience.
Good luck.
I have an SD-SSG which I suppose should have the same size hingepins. They are 3mm inboard, and 2.5mm outboard. Now that I think of it it may actually be something weird like 2.4mm outboard.
Nevermind that though.
One option readily available is to go buy a decent tool with the right size shank (pin punch for instance, but can be a screwdriver, etc.). They are not going to be titanium, but tool steel if they're a good quality, and that's as strong as it gets (albeit heavier than titanium). Cut the shank to desired length and you have your hingepins. The advantage is they are precision ground to size.
Another idea is to use drill bits. Hard to find in that length since you can only use the round part of the shank, and a compounding problem is that only part of the shank is hardened, so it will bend past that point.
Looking for titanium is a good idea, but can take a while.
I have managed to find titanium rod eventually on ebay, but even though it was advertised as 3mm diameter in fact is was 3.14 for one of them and the other was 3.12mm. That is enogh to make the suspension arm articulation stiff. I had to sand them down and it's a PITA because you have to keep it round and consistent along the length.
Even aftermarket parts made by serious companies have this problem (i.e. they're a fraction too large). I bought OEM Traxxas suspension hingepins (Titanium) with this problem, I have bought Lunsford hingepins with this problem. There is nothing else you can do about it then but sand them down with a lot of patience.
Good luck.
02-17-2011, 04:18 PM
#3
The problem I had was the original pins rusted and stiffened up the suspension, I just replaced them with more steel pins but I think I'll keep looking for titanium pins.
Thanks.
Thanks.
02-17-2011, 05:33 PM
#5
Can you polish them with some fine sandpaper? Stick'em in a drill, spin them at 3000rpm and grab with a piece of fine grit (600 or higher) wrapped around. Slide hand along as you go, so you don't thin them out unevenly. Some WD40 wouldn't hurt. They'll polish nicely.
02-17-2011, 09:29 PM
#7
02-18-2011, 04:16 AM
#9
I'm looking for an alternative to the original steel hinge pins in my Yokomo Type C drift chassis. The steel ones are rusting so I'm looking for titanium.
The pins are 2.5mm diameter so do any other cars share this size pin that titanium hinge pins are readily available for.
The longer pins are 56.5mm long and the shorter pins are 29mm long.
Thanks.
The pins are 2.5mm diameter so do any other cars share this size pin that titanium hinge pins are readily available for.
The longer pins are 56.5mm long and the shorter pins are 29mm long.
Thanks.
Are you using it when its wet outside? (Hence the rusting)
Might not be the answer you are looking for though, you're not the only guy out there who likes to drift in the wet...
02-18-2011, 10:17 AM
#10
New Yokomo steel pins aren't too expensive and yes I should be a little bit more careful where I use it.
So what else uses 2.5mm diameter pins
So what else uses 2.5mm diameter pins
02-18-2011, 11:17 AM
#11
Doubt you'll find titanium rod in a tolerance that will be acceptable.
Check out www.mcmaster.com search for drill blanks.
Hardened steel rods you can cut to length with a high degree of accuracy on roundness and straightness.
Check out www.mcmaster.com search for drill blanks.
Hardened steel rods you can cut to length with a high degree of accuracy on roundness and straightness.
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