Mr Bowcat Posted February 3 Share Posted February 3 Hi all. I am in the process of trying to resurrect my old T-Maxx 2.5 that has been languishing in my loft since 2006. Started the tear down this weekend and immediately realised the piston and sleeve no longer had compression (possibly why it went in the loft almost 20 years ago). Managed to get a new piston and sleeve ordered, but almost 50 quid?? Managed to get some charge into the old battery packs, the receiver turned on but no movement from the servos yet, so that next to be investigated. I'm going to fully charge teh batts first on the off chance there wasn't enough juice. Also need to get some new filter foam, the original had tuned into a gooey mess. Quote Link to comment Share on other sites More sharing options...
locky Posted February 3 Share Posted February 3 The nimh battery will probably hold very charge, enough to turn on the receiver but not sufficient to move the servos. Good luck with getting it going after all this time. 1 Quote Link to comment Share on other sites More sharing options...
Mr Bowcat Posted February 3 Author Share Posted February 3 Cheers Locky. Quote Link to comment Share on other sites More sharing options...
Cactus Posted February 6 Share Posted February 6 On 03/02/2025 at 11:15, Mr Bowcat said: Started the tear down this weekend and immediately realised the piston and sleeve no longer had compression (possibly why it went in the loft almost 20 years ago). Managed to get a new piston and sleeve ordered, but almost 50 quid?? Blimey you paid a lot for that, anyway when they dry up they can loose compression. A bit of oil will bring it back, saving you £50 😊 Quote Link to comment Share on other sites More sharing options...
Mr Bowcat Posted February 6 Author Share Posted February 6 Believe it or not, that was the cheapest, some were going for £70+. To be fair, the skirt of the piston also had some damage, may have done that when I took it out. 😞 Quote Link to comment Share on other sites More sharing options...
Cactus Posted February 6 Share Posted February 6 I know some people really do try their luck with 2nd hand parts like that. New ones are around £50 so why would anyone really pay more for a 2nd hand one lol. Anyway, did ya get it going? Quote Link to comment Share on other sites More sharing options...
Mr Bowcat Posted February 7 Author Share Posted February 7 Not yet, new parts should be arriving from Wheelspin today, so will try and get them fitted over the weekend if I have time. I'm shooting all day Sunday so will have to be tomorrow. Quote Link to comment Share on other sites More sharing options...
Mr Bowcat Posted February 24 Author Share Posted February 24 Hi Guys, Finally got out to the workshop over the weekend, got the new piston and sleeve installed and the engine back together. I got it fired up for a few seconds, unfortunately my 20 year old NIMH stick batts won't hold a charge, I get one good crank out of the EZ start before having to charge again for 20 minutes. Couldn't be bothered with that so will leave it there until the weekend and order a new batt in the meantime. Quote Link to comment Share on other sites More sharing options...
Cactus Posted February 24 Share Posted February 24 6 hours ago, Mr Bowcat said: Hi Guys, Finally got out to the workshop over the weekend, got the new piston and sleeve installed and the engine back together. I got it fired up for a few seconds, unfortunately my 20 year old NIMH stick batts won't hold a charge, I get one good crank out of the EZ start before having to charge again for 20 minutes. Couldn't be bothered with that so will leave it there until the weekend and order a new batt in the meantime. Nice, I've got some T-maxxes at the moment on the bench, very enjoyable. 1 Quote Link to comment Share on other sites More sharing options...
Mr Bowcat Posted March 5 Author Share Posted March 5 Been fiddling with this off an on over the last few days. Finally managed to get it idling consistently yesterday, I've got as OS carb fitted so getting some base settings was a case of trial and error, and I don't think the cold weather has helped. Even got it moving under it's own power for a little yesterday, but finding it cuts out with only a little throttle, so I'm thinking I'm still running a bit rich. Quote Link to comment Share on other sites More sharing options...
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