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Tamiya TRF419

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Old 04-11-2019, 02:05 PM
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42335 TRF Aluminum Tool Stand
42336 TRF Setting Board
42337 TRF Trolley Pit Bag

argh! Just bought a pit trolley. I wanted the Carson / Tamiya TRF one but it was discontinued so I bought a proline and then Tamiyacomes out with one
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Old 05-14-2019, 09:00 PM
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Just got my aluminum chassis in and seems to be tweaked. If i put my finger down on one end the other pops up. This isnt normal right? TIA!
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Old 05-15-2019, 10:42 AM
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Originally Posted by Gyr0 View Post
Just got my aluminum chassis in and seems to be tweaked. If i put my finger down on one end the other pops up. This isnt normal right? TIA!
have checked it on different surfaces?
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Old 05-16-2019, 04:44 AM
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Question about the super short big bore dampers, I've been having a hard time trying to make them leak free. I've tried x-rings, shims and green slime, but nothing really works. Pressing the SSBB dampers a few times makes it leak oil, while on the other hand, my regular TRF dampers leak way less even for weeks. Also, the pistons are really small in comparison to the cylinder, giving the shaft a ton of play while the old TRF dampers have barely any play. These SSBB dampers pretty much need a rebuild for every race day.
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Old 05-16-2019, 10:49 AM
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Originally Posted by herrokero View Post
Question about the super short big bore dampers, I've been having a hard time trying to make them leak free. I've tried x-rings, shims and green slime, but nothing really works. Pressing the SSBB dampers a few times makes it leak oil, while on the other hand, my regular TRF dampers leak way less even for weeks. Also, the pistons are really small in comparison to the cylinder, giving the shaft a ton of play while the old TRF dampers have barely any play. These SSBB dampers pretty much need a rebuild for every race day.
Replace x rings with Tamiya clear o rings and your problem will be solved.

Tamiya 53374

https://www.tqrcracing.com/shop/prod...w.asp?p_id=595
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Old 05-16-2019, 04:30 PM
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I used 50 duro x rings in my ssbb dampers and they seeped a tiny amount right away so I figured the seals might swell .......1st race they all leaked 50 % of the oil from each shock.....rebuilt them with the standard trf blue orings and have been silky smooth and leak free ever since.

x rings
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Old 05-16-2019, 07:27 PM
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Thanks for the advice. I read these x-rings were supposed to seal better, which it obviously doesn't. I'll play around with different ways to build the dampers and post what I find since I've also got the clear and the blue o-rings. Another thing I've noticed is that middle of my oil seals aren't flat anymore and are a bit convex, likely from trying to build it with 0 rebound. I think it's making the rebound inconsistent.
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Old 05-16-2019, 10:59 PM
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In my experience on the SSBB dampers, yes the kit TRF blue orings leaks like a sieve. And although the clear tamiya orings are leak free, they cause a lot of drag on the shafts.

I found that the best compromise for leakage and smoothness are the Yokomo blue orings YS7-HG. They maintain smoothness while allowing only minimal leakage compared to the others I've tried.
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Old 05-17-2019, 12:11 AM
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Originally Posted by Raman View Post


have checked it on different surfaces?
Got it figured out thanks
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Old 05-18-2019, 07:45 AM
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Tamiya blue o-ring = bad O-Ring .. x ring or normal.
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Old 05-21-2019, 03:48 AM
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Too early to tell, but so far I've tried putting shims above and below the x-ring, and it's getting a really good seal whilst still being really smooth. I'd say it's likely that the cause of leaking before was due to the x-rings being around 1.75mm, so there would be a big gap for the oil to leak through when using no shims. I also used a 0.1mm shim for the dampers built with either blue or clear o-rings, and they also haven't leaked, but the clear o-rings are noticeably grippier. No doubt the clear o-rings seal better but might not be as smooth.
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Old Today, 08:39 AM
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Anyone looking for an alum chassis for the 419X/XR? Let me know. I have a new one that I'm not using.
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