The chain oiler

Whoever owns a motorcycle knows the tedious task of lubricating the drive chain. On long tours you have to take a can of spray lube with you. But worst of all: You have to remember to use it. And if you remember it, you have to actually do it as well. This was the point where I usually failed. The decision to finally buy a chain oiler I made in Norway. It rained all the time and I ruined my chain and sprocket because i didn't have enough lube with me.

I had allready read about the different systems. Most commercial chain oilers are gravity fed. While this is really simple I didn't like it very much. When the egine is running there is always oil dripping onto the chain, whether I'm driving or not. Furthermore it is temperature dependent: When it's hot the oil is much thinner and flows more quickly.

The other system is electrical. A reed sensor on the front wheel counts the rotations. After certain number of turns a pump feeds a small volume of oil to the sprocket. This requires a bit of electronics but is not too complicated. But commercial units cost more than 150 oder even 200€. But luckily there is the Rehoiler. Sold as a kit it features all the functions that I need and some more. And that at a price of about 60€ - that's cheaper than most gravity fed oiler you can buy. I installed it in my Honda Transalp and it works like a charm since then.

The Idea, or over-engineering a chain oiler

So if the thing works, what do i want to do? It's 'never change a running system' after all.

Well, the oiler as it is now has no real interface. It's a small PCB with an ATMEGA, some DIP switches, connectors for the pump, the switch, the LEDs and the power and that really is all that's needed.


projekte/chain_oiler.txt · Zuletzt geändert: 2014/03/15 17:50 (Externe Bearbeitung)