Bernd
Well-Known Member
I came across some gears I had scavenged from several lawnmores. My neighbor is into recycling metals. Every time he disassembles a lawnmower I asked him to save the gears. So below are a few picks of the gears. They are a 1 to 2 ratio since they are for the valve timing. Anybody that is contemplating building MICE (miniature internal combustion engines) may be able to use a set of gears for their valve timing. Another use could be for the hit and miss engines.
So before you throw out that lawnmower or power tool, you may want to see if it has any gears that may be useful for your next engine project. Another source of gears is an automatic transmission. I couldn't find a set at the time I took these pics. If I ever find them I'll take a pic and post here.
Below are a few pics.
Here is one driven gear with the lobes still on. The other set is the drive gear and the driven gear. Note the "dots" that are in mesh. These are the timing marks.
Here you can see the lobes of the driven gear. I cut the lobes off the other gear and faced it.
Here's a pic with a six inch scale to show size.
Here's a set of gears out of a power tool. Don't remember exactly what tool they came from.
Bernd
So before you throw out that lawnmower or power tool, you may want to see if it has any gears that may be useful for your next engine project. Another source of gears is an automatic transmission. I couldn't find a set at the time I took these pics. If I ever find them I'll take a pic and post here.
Below are a few pics.
Here is one driven gear with the lobes still on. The other set is the drive gear and the driven gear. Note the "dots" that are in mesh. These are the timing marks.
Here you can see the lobes of the driven gear. I cut the lobes off the other gear and faced it.
Here's a pic with a six inch scale to show size.
Here's a set of gears out of a power tool. Don't remember exactly what tool they came from.
Bernd