GoldenBunip
10 mW
- Joined
- Aug 31, 2021
- Messages
- 27
Hello, again it's been a while. So long I had to remake my account.
The question is Gearbox oil or Water.
Background.
Over the summer I have been transforming a child's quad.
It started life with a Brushed motor, Lead-acid batteries and could only move one child and not very far or fast.
It's now on 36V 27AH (more cells on the way) of HG2 copies, with 50amp bms, Kelly controller, air suspension.
It was carrying me (80KG) + one of my boys (20KG) cross country for about 10 miles. It was quicker and faster than a brand new 50cc quad of a similar size.
The issue was the motor was getting HOT. I put a 120mm fan with ducting on it. But the other day it started running rough, now after about a min of use, it loses one of the phases and runs like a 2stroke with no power.
Opened the motor to find this.
SO onto Propper cooling. the plan is to push Oil or Water through the motor, and past a rad. I've lots of experience with PC water cooling and will be using bits from that.
To start with I have taken the old ends off, and sealed the holes with resin.
Next up is to drill and G1/4 Tap holes in them.
When the replacement motor arrives I will seal the bearings and wire port with silicone sealant and hopefully have a watertight motor hose.
Thus do I push deionized water with PC additives (with anti-corrosives/conductance in it) which will be the best cooling, but possible issues later on.
OR
push gearbox oil through it, which will be less colling but I think safer option!
The question is Gearbox oil or Water.
Background.
Over the summer I have been transforming a child's quad.
It started life with a Brushed motor, Lead-acid batteries and could only move one child and not very far or fast.
It's now on 36V 27AH (more cells on the way) of HG2 copies, with 50amp bms, Kelly controller, air suspension.
It was carrying me (80KG) + one of my boys (20KG) cross country for about 10 miles. It was quicker and faster than a brand new 50cc quad of a similar size.
The issue was the motor was getting HOT. I put a 120mm fan with ducting on it. But the other day it started running rough, now after about a min of use, it loses one of the phases and runs like a 2stroke with no power.
Opened the motor to find this.
SO onto Propper cooling. the plan is to push Oil or Water through the motor, and past a rad. I've lots of experience with PC water cooling and will be using bits from that.
To start with I have taken the old ends off, and sealed the holes with resin.
Next up is to drill and G1/4 Tap holes in them.
When the replacement motor arrives I will seal the bearings and wire port with silicone sealant and hopefully have a watertight motor hose.
Thus do I push deionized water with PC additives (with anti-corrosives/conductance in it) which will be the best cooling, but possible issues later on.
OR
push gearbox oil through it, which will be less colling but I think safer option!