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I've contacted Arrma regarding this issue - have they any plans to resolve the issue.
Also have people shimed, used heavier weight diff oil and meshed well and still get the issue?
My plan is to do all of the above - hope fully this resolves the issue.
Ive ordered the Robinson Racing Pinion. What Spur are people running there RR pinion with?
I had to change the brushless motor due a breakage (see previous posts for details) and then also used a RR 14t pinion and have run 6s without any issues since.
Thanks for that - I will do the same - I was going to do the shimming and gear diff oil anyway......so will do those aswell.
Did you upgrade your spur.....I have a slight concern that you have a harder steel going onto the arrma steel spur
Agree but I've found the factory red compound is no problem if you heat the grub screw first, with your iron for about 30-60 seconds.I had to use a modified puller to get the stock 12t off (and tear the alu servo horn to get the screw out). Just in case someone from Arrma is reading: PLEASE DON'T USE THE F***** RED THREAD LOCK!
On the third pack (first 6S run) with the 14t pinion one tooth went missing, happyhappyjoyjoy.
Should I use two strips of 0.1mm paper instead of one to adjust the mesh?
Using only one strip leaves a 'pleasant' non-binding gap but hey correct me if I'm wrong!
You should link to this threadGood info with the use of the solder... when I get round to doing my pinion.
I got some rubbish response from Arrma re the pinion "we always look to improve, we haven't had issues like this reported before.... thank you for your info.... we always look to improve our products" disappointing imo.
Agree but I've found the factory red compound is no problem if you heat the grub screw first, with your iron for about 30-60 seconds.
For mesh, I used 1 piece of standard copy paper and it is holding up, HTH.
No, that gear is 32p you need mod 1. Robinson Racing RRP1213 would be 13t https://www.towerhobbies.com/cgi-bin/wti0001p?&I=LXURS8&P=7 if you want a different tooth count just replace the last two digits with the number of teeth you want, ie a RRP1214 would be 14t RRP1215 is 15t ect.Will this https://www.towerhobbies.com/cgi-bin/wti0001p?&I=LXDZEY&P=7 fit on the stock Kraton motor with the stock SPUR ?
So a bit of a write up.
I've shimmed three difs and put in new oils: 50k, 300k, 100k.....wow the car handles in a much better way....really great. I used hobby king trackstar oil.
I used mugan and stock washers... I went with 2 either side of each planet gear....most say 2 and 1....but 2 and 2 worked well...not to tight.
When removing stock pinion grub screw and motor screws I used a soldering iron to heat through the red locktite....without it, it would have been a struggle. Soldering iron was effective. When I put the screws back in I used blue thread lock.
I got the mesh quite tight. I got the spur and pinion as tight as I could (no click) and secured into position. wierdly when I ran paper strip through...the paper didn't tear just crimped. I felt nervous leaving it that tight so eased off a little, til I got the faintest of clicks.
I've had around 5 runs with no issues.
So far so good....only problem is if I blip the throttle enough it backflips!!!
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