brushless 1/5 4wd conversion about to begin! couple questions.

[Ryu James]

hey kaz, or anyone else with a rampage,
no matter how much i try to keep my diffs sealed tight they continue to leak diff fluid. and i am not even driving this thing yet!! if the diffs leak when its just sitting around whats gonna happend when they are spinning at 10,000rpm?? i have tried new diff cases and it still happens. it seems it must be a rampage thing. i am just wondering if anyone else has had this issues and if anyone knows what would fix it? thanks.

[aqwut]

Originally Posted by Ryu James

hey kaz, or anyone else with a rampage,
no matter how much i try to keep my diffs sealed tight they continue to leak diff fluid. and i am not even driving this thing yet!! if the diffs leak when its just sitting around whats gonna happend when they are spinning at 10,000rpm?? i have tried new diff cases and it still happens. it seems it must be a rampage thing. i am just wondering if anyone else has had this issues and if anyone knows what would fix it? thanks.

Yeah, that's a weakness for the rampage... there is an upgrade kit somewhere.. ..

[KaztheMinotaur]

I've never had problems with my diffs leaking. Do you have the little rubber o-rings arounds the output shafts? Is it leaking from the output shafts or around the ring gear? The upgrade kit has thicker output shafts...they were breaking around the pin.

I'll get my motor mounts tomorow!

I think I will clean up my hobby room tomorrow morning so I have a nice place to start the Rampage build.

[Ryu James]

Originally Posted by KaztheMinotaur

I've never had problems with my diffs leaking. Do you have the little rubber o-rings arounds the output shafts? Is it leaking from the output shafts or around the ring gear? The upgrade kit has thicker output shafts...they were breaking around the pin.

I'll get my motor mounts tomorow!

I think I will clean up my hobby room tomorrow morning so I have a nice place to start the Rampage build.

nice dude. i started working on getting my motor mounted last night. might finish tonight or tomorrow.

anyway, i have the upgrade kit. besides my ramp is the v2 which is supposed to already have the upgrades in place. and my diffs do have the little rubber gasket around the outdrives but it doenst fit right. nor is there a metal washer to go over the o ring like 1/8 diffs do. it just has the o ring and then the cross pin that goes through the outdrive shaft. i tried putting a washer over it but then i cant get the cross pin thru. anyway, i will figure somethign out. just wondered if there was a surefire trick that had already been used by other ramp owners.

be sure to post pics of your build when you start. i got my hardened gears all mounted up now. they turned out great.

what are you going to do for gear mesh on your setup? just put elongated holes in the chassis so you can slide the mount side to side? or make a set of plates? or just use one gear so you dont need to adjust mesh?

[KaztheMinotaur]

I'd ask on the RedCat Rampage Forum about the diffs. You've got to be missing something for them to leak like that.

I will probably slot the chassis if / when I need to re=gear. Jim Williams included "two sets of slots one for vertical adjustments and the other for horizontal" I can't picture exactly what this means but we will see.

What did you man by make a set of plates?

I'm still thinking about how and in what way to mount my batteries.

[Ryu James]

by plates i mean 2 rectangle plates that the motor mount mounts to and then the plates bolt to the chassis. like a tekno setup. that is how i did my mount. this way the plates are slotted for gear mesh adjustability and also i built them in a way that by reversing the plates i can use either a RCM pinion or flip them around and use the longer sdp 12t pinion. using plates allows the most versatility imo but then again its what i am use to since all my conversion are tekno kits. i will post pics tonight.

as for the batteries i just used 2 RCM trays and mounted on each side of chassis as close to center as possible. what options are you considering for mounting yours?

[KaztheMinotaur]

Well here is my Jim Williams mount. It is a little different that I thought. What I will probably do is sandwich each horizontal slot between 2
L- brackets. Then the L-brackets will be bolted to the chassis. This way I can move the mount for pinion changes with out cutting a big hole in the chassis.

I though the mount mounting screw would thread up into the bottom of the plate...by bottom I mean the surface that sits on the chassis.

I was probably going to use some stick on velcro pieces and velcro cinch straps.