- Jan 1, 2017
The swing arm on my bike has a zirk fitting at one end. I hadn't oild it and, after having a flat rear tire upon just setting out, I decided it was time to oil the swing arm. There is a small bolt on top of the swing arm bushing housing and I couldn't get to it unless I removed the fender AND the horn! I have a nice new oil gun (looks like a grease gun, but a lot more expensive -- don't know why the extra expense) So I tried to pump in some 90/150 -- and couldn't! Took off the zirk and pushed like crazy on the gun lever expecting the zirk to fly off in to space. Finally some oil came through, and then a little more. The hole that gets closed by the ball bearing in the zirk is much smaller than for grease zirk fittings. Put it back on the end of the swing arm and started pushing for all I could. Out of the small bolt hole on the top of the bushing came a red grease like stuff. I pumped till it was just oil coming out. Now the question. Was that a thickened heavy red oil turning into a grease like substance after 45 years or had someone loaded this up with a red colored grease? I was told that grease clogs the porous bearing, clogs the pores. Now it's not exhibiting any problems like sticktion or noises or lack of movement. Just wondering if thick oil can actually thicken like that. Or was that a special grease you could use and not worry.