Lox09 Posted September 28, 2020 Share Posted September 28, 2020 I have had my lasrernut for a couple of weeks, only light use on 4s on the stock (out of the box setup). Over the weekend the left dog bone sheared at the neck of the ball on the left side and the right side is scored in the same place. Looking on other forums this seems to be an issue with this vehicle. So can anyone recommend some alternative front driveshafts for this vehicle? Thanks! Matt Quote Link to comment Share on other sites More sharing options...
Fly In My Soup Posted September 28, 2020 Share Posted September 28, 2020 (edited) Length of shaft? ... No pun intended Is it cvd... Uvd? Edited September 28, 2020 by Fly In My Soup Quote Link to comment Share on other sites More sharing options...
Lox09 Posted September 28, 2020 Author Share Posted September 28, 2020 It is CVD I think. The length of the shaft pin to pin is 95mm. Attached photo to help! Sorry I am new to the hobby! Thanks for the help! IMG_1063.HEIC Quote Link to comment Share on other sites More sharing options...
Gampla Posted September 28, 2020 Share Posted September 28, 2020 It is CVD I think. The length of the shaft pin to pin is 95mm. Attached photo to help! Sorry I am new to the hobby! Thanks for the help! IMG_1063.HEICwe cant see the pictureSent from my RCT6613W23PU using Tapatalk Quote Link to comment Share on other sites More sharing options...
.AJ. Posted September 28, 2020 Share Posted September 28, 2020 Sounds like the suspension maybe over compressing and jamming the dog bones against the drive cup, a section of fuel tube on the shock shaft to limit travel may help 1 Quote Link to comment Share on other sites More sharing options...
Lox09 Posted September 28, 2020 Author Share Posted September 28, 2020 Try this image. Quote Link to comment Share on other sites More sharing options...
Lox09 Posted September 28, 2020 Author Share Posted September 28, 2020 I will give the tube a go.. Quote Link to comment Share on other sites More sharing options...
.AJ. Posted September 28, 2020 Share Posted September 28, 2020 That silver line is definitely a sign of rubbing, it could be over shock compression or too much steering lock Quote Link to comment Share on other sites More sharing options...
Lox09 Posted September 28, 2020 Author Share Posted September 28, 2020 I had already reduced the steering lock as I was concerned about this. I will check the shock compression. Thanks for the heads up! 1 Quote Link to comment Share on other sites More sharing options...
monkeyboy_uk Posted September 28, 2020 Share Posted September 28, 2020 Quote Link to comment Share on other sites More sharing options...
Ag100 Posted October 1, 2020 Share Posted October 1, 2020 Any update on this issue @Lox09?, interested if Losi have acknowledged the issue, seen a few posts about it elsewhere Quote Link to comment Share on other sites More sharing options...
Lox09 Posted October 1, 2020 Author Share Posted October 1, 2020 Any update on this issue [mention=45796]Lox09[/mention]?, interested if Losi have acknowledged the issue, seen a few posts about it elsewhere Spoke to LogicRC (Losi UK Distributor) this afternoon and explained the issue. Guy said that they have been contacted by a couple of other people with the same issue. He said that they think it is an issue with a batch of driveshafts being over hardened and they have just received the replacement parts. I sent him images etc and so I am hoping they will send me replacements.Looking a RC forums in the US and UK it seems to be a common issue along with stripped diffs. I hope I don’t have that problem as well when I get up and running again! I will keep people posted on my dealings with Logic RC and Lasernut progress.. Sent from my iPhone using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
Ag100 Posted October 1, 2020 Share Posted October 1, 2020 That’s good, I’m glad they are looking at it, keep looking at these, so will be interested to hear. Quote Link to comment Share on other sites More sharing options...
mond Posted October 2, 2020 Share Posted October 2, 2020 It's very possible SCTE 2.0 or 3.0 shafts will work. May be worth comparing product numbers. There may even be a TLR equivalent to whatever the LOSA number is too. Thats generally how Losi/TLR have worked in the past. Quote Link to comment Share on other sites More sharing options...
Lox09 Posted October 4, 2020 Author Share Posted October 4, 2020 Ok an update.. I managed to get some spare shafts off ebay (still waiting for LogicRC to confirm what they will do) and fitted them. Car ran like a dream today in the dunes. Like you I love this car it drives amazingly and is tough as hell! I have put loctite on the wheel nuts after watching a few youtube clips and my wheels have stayed on so far.. diffs have been good too so far! Let’s hope it continues to run well and LogicRC agree to replace the faulty parts.. Sent from my iPhone using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
Derka Posted October 9, 2020 Share Posted October 9, 2020 (edited) How are you getting on? This chap is now blowing bearings on only 3S. Edited October 9, 2020 by Derka Quote Link to comment Share on other sites More sharing options...
Lox09 Posted October 10, 2020 Author Share Posted October 10, 2020 Since I got the new driveshafts there have been no issues with the driveshafts.. But now getting a grinding noise when the car slows down from high speed. So took diffs apart.. so far both middle and rear diff were fairly empty of fluid. So refilled those. Rear diff case was full of fillings and grease. Looks like the rear pinion has been chewing up the ring gear a bit (see image). I have cleaned it up and I am am rebuilding it. I hope that will fix it, as it looks like spares will not be available for a while! I still got to check front diff and rebuild I will update later! Quote Link to comment Share on other sites More sharing options...
mond Posted October 10, 2020 Share Posted October 10, 2020 In the rear diff housing, are there two plastic bearing retainers? TLR do aluminium versions of those which are well worth getting and will help with gear mesh. Quote Link to comment Share on other sites More sharing options...
Lox09 Posted October 10, 2020 Author Share Posted October 10, 2020 Great! Do you know the part no.s by any chance? Quote Link to comment Share on other sites More sharing options...
Derka Posted October 10, 2020 Share Posted October 10, 2020 (edited) Can't see them on the Losi site optional parts here: http://www.losi.com/Products/RelatedParts.aspx?ProdID=LOS03028T1&Category=Optional+Accessories&SubCategory= I think @mond is talking about the rear only plastic bearing pieces I'm so tempted myself to order one! Edited October 10, 2020 by Derka Quote Link to comment Share on other sites More sharing options...
Lox09 Posted October 10, 2020 Author Share Posted October 10, 2020 Derka, Thanks for the response. Yep I think you are right, but I cannot find an aluminium version of this anywhere. In terms of recommending this car, I do love it when it works as it is amazing, but I would hold off until the bugs are ironed out. Quote Link to comment Share on other sites More sharing options...
mond Posted October 11, 2020 Share Posted October 11, 2020 https://www.amainhobbies.com/team-losi-racing-aluminum-rear-gearbox-bearing-insert-set-2-tlr3100/p235958 So many parts will be labelled TEN or SCTE and will have the TLR product code. Quote Link to comment Share on other sites More sharing options...
Lox09 Posted October 11, 2020 Author Share Posted October 11, 2020 Cheers matey! That is great! Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Lox09 Posted October 11, 2020 Author Share Posted October 11, 2020 Ok has promised here is a further update. Ok finished cleaning and refillingall three diffs with 100K in centre and 10k front and back. Seemed fine and smooth on stand without wheels. But when I got the wheels back and out for a test run, still get the grinding when the car slows down from the rear transmission box, basically the ring clear is being chewed or has been chewed too much by the pinion. Also after testing noticed the hub is stripped (despite locktight). So one new issue (chewed ring gear) and two known issues (drive shafts and hub stripping) experienced on a car that has been used 5 times on 50% power. To say I am not happy is a major understatement! 😪 I will call LogicRC tomorrow and see what they say! Quote Link to comment Share on other sites More sharing options...
Ag100 Posted October 11, 2020 Share Posted October 11, 2020 That is a real shame, the car looks fantastic, and I have kept putting one into my basket online to buy, but this is really putting me off, I love tinkering and upgrading but it doesn’t seem right to have to fit new driveshafts etc from the start, hopefully they sort you out, there does seem to be a lot of talk on various forums/YouTube/Instagram, so I’m sure they are well aware, hopefully they will send you out some upgrade TLR parts maybe. Quote Link to comment Share on other sites More sharing options...
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