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Re: At last, I have a JRX2 to rebuild...
Posted: Sat Feb 08, 2014 7:10 pm
by LosiXXkid
OK......I think this is where the problem lies. By the looks of things the gear box maybe an earlier version with a much narrower opening for the slipper shaft. I can't see too well due to the motor plate being attached but check to see if your RHS transmission case half has the wide opening like this....
- Losi LRM Transmission
- Losi Jr.2 Update 002.jpg (115.02 KiB) Viewed 684 times
- Losi LRM Transmission
- Losi Jr.2 Update 002.jpg (115.02 KiB) Viewed 684 times
And a close up of the area in question....
- LRM Trans case close up.
If this is the problem then there's obviously no room for the long boss slipper back plate so you may need to find a later transmission case or widen the hole..... carefully!
Maybe one of the other forum members has had to do this and can offer some advice.
Re: At last, I have a JRX2 to rebuild...
Posted: Sun Feb 09, 2014 1:22 am
by hondaman
I rembered this problem discussed and found where..
http://www.rc10talk.com/viewtopic.php?f=27&t=24503&start=30.. it is DerbyDan's jrx2 project.. good read as well for an interesting set up for a runner.. I used this build as my inspiration for my own jrx2 build.. give it a look.. the post regarding the trans is near the bottom of this linked page.. it also confirms LosiXXkid's observation..
Shawn
Re: At last, I have a JRX2 to rebuild...
Posted: Sun Feb 09, 2014 6:25 am
by aggpm09
Very helpful Hondaman and LosiXXXkid, thanks. I did wonder if I would need to open up the hole in the gearbox. I'll have a goat it myself and see if I can do a reasonable job, otherwise I have to wait several weeks for a new case to arrive in the UK from the States - postage is very slow.
I'll post updates as the car comes together....
Re: At last, I have a JRX2 to rebuild...
Posted: Mon Feb 10, 2014 7:12 am
by DerbyDan
hondaman wrote:I rembered this problem discussed and found where..
http://www.rc10talk.com/viewtopic.php?f=27&t=24503&start=30.. it is DerbyDan's jrx2 project.. good read as well for an interesting set up for a runner.. I used this build as my inspiration for my own jrx2 build.. give it a look.. the post regarding the trans is near the bottom of this linked page.. it also confirms LosiXXkid's observation..
Shawn
Glad you found my build thread inspirational/helpfull,
For opening up that hole in the gearbox casing I used a bodyshell reamer tool - did a perfect job! If you are using the normal XXX slipper plates - the 'boss' on the back is not big/long enough - so you need the black spacer to fit between the layshaft bearing & the slipper plate
