A quick question to you all. I’ve got a bike with cylinder wall oiling pipes installed that lead to the end of the cylindrical tube that forms the bottom of the oil tank integral to the petrol tank. At the opposite end of this tube is cable. I’ve taken this lot to bits today but expected to kind a mechanical pump. Instead the cable does indeed operate a spring plunger inside a 3″ long gauze filter, but is not directly connected to the cylinder wall oiling adaptor. Is this correct, does the system just work by creating a small pressure due to the oil being pushed backwards and forwards in this cylinderical tube, or have I got bits missing? I’ve searched but not managed to find an exploded drawing or similar. I also note there are no non return valves anywhere to be seen, is this correct?
Also, the cable from the tank was not connected. I assume it goes to the LH inverted lever?
I took it all to bits today and de-soldered the gauze so I could see what was behind it. Interesting! There was a steel tube about 1/2″ diameter, 2″ long with a plug soldered in the end. This in turn was soldered to the inside face of the end plug for the tank. The gauze was outside this tube. Of course it was a sealed system so the cable/spring went in from the outside and just moved inside the steele tube, moving air backwards and forwards 😆 This also explains why it leaked no oil through where the cable entered.
So, sometime in its life this has been bodged. At the moment I’ve left it with a blanking plug until I can find out how it should function and be assembled. Answers below if anyone knows….
On the plus side I removed the tank as part of all this and got a mountain of debris and dirt out of the oil and petrol tanks. It never hurts to wash your tanks out with paraffin every couple of years.