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04-26-2020, 02:20 PM | #1 |
Rock Crawler Join Date: Mar 2008 Location: Plainfield
Posts: 669
| My “new to me” TRX-4 Sport
I scored a TRX-4 Sport, ready to run, from Facebook marketplace. The guy said he had just built it after upgrading his TRX-4 Blazer. He moved the body and all the electronics to the sport then sold it to me. I haven’t been in the crawler game for a while but I’ve been in RC since I was 12. As a full scale A&P helicopter mechanic, I super anal when it comes to mechanics. Body on pics are from the first session, run in the condition I got it. Lou |
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04-26-2020, 02:28 PM | #2 |
Rock Crawler Join Date: Mar 2008 Location: Plainfield
Posts: 669
| Re: My “new to me” TRX-4 Sport
After the first session, I took the rig to the work bench. Found oil all over the chassis, all four shocks leaking. The builder had used some pliers to hold the shock shafts while building. I replaced them with the TiN shock shafts and rebuilt them. I also added a 5mm spacer internal to help lower CG a little. Lou |
04-26-2020, 02:38 PM | #3 |
Rock Crawler Join Date: Mar 2008 Location: Plainfield
Posts: 669
| Re: My “new to me” TRX-4 Sport
After rebuilding the shocks, I took a look at the rear portal boxes. The gears were lubed with a very small amount of green slime. This was the case with EVERY gear box on the model. I also rebuilt the tranny as I thought the output shafts were too sloppy, I found the PTFE washers installed on wrong side of the transfer case gears. After all the mechanical issues where sorted, I installed a Spare Time Hobbies low CG battery tray. Very nice 3D print from VooDoo RC. Currently waiting on brass hexes and a new RX so I can start using my FS-GT5. Lou Last edited by TK421; 04-26-2020 at 02:41 PM. Reason: Pic upside down |
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