Thursday, December 17, 2015

Chimney Turbine fix

Another unconventional fix, this time the chimney turbine.

The Chimney Turbine
It's been there for a 4 or 5 years, rotating steadily and stealthily, until a couple of nights ago, it nearly drove me crazy as I searched for the origin of a faint noise as I used the computer in the attic. I thought it was from the hard disk, then the boiler, and finally, after a night or two I realized it was from the turbine. It didn't help that there wasn't much wind, so it only turned intermittently.

Come the weekend, and I jump on the roof to get it out, disassemble it, to find a rusty bearing at the very bottom. The hole where the axle is assembled is protected from water ingress, but I guess not protected enough, and over the years, some water accumulated, and got the bearing rusty.
The rusty bearing

A trip to the local hardware store later, and I ordered the bearings on eBay, from some German store. The local store closed at 12:00 on a saturday!
The rusty bearing opened and the new one about to be installed

They arrived today, so I prepared it all, ready for final assembly and replacing it on the roof!

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