So I bought a new gas cap for my MTD 10HP Tecumseh blower. The old cap fell apart. My machine would stall because the cap didn't vent properly. The new cap appears to be identical. Same colour (red) and everything. Home Depot stocks them for $6.34 CDN. They appear to be an exact match to the old ones which Tecumseh does not sell any more. I was wondering how these devices work. Inside the cap there is a little metal disc which sits on top of a rubber cap on a small piece of sponge like material which all are held together on a plastic stem that runs through the center of the cap. I can't figure out how those pieces work together to vent the fuel. No big deal, just curious how things work.
361.5 KB Views: 83