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Changing out one of my wheel cylinders on the M37 and this came up. Now the wheel cylinder that looks new and has no machining on the face where the copper washer would go is a New China wheel cylinder. The older one with rust is from my M37 and the new one was to be for the M37 but the machine area where the copper rubber brake fitting is cut round. Where the old M37 has just the one flat cut on the top by the bleeder. This flat cut hold the rubber brake like fitting that is more square and will not let the fitting move when you go to tighten it up.
Now with all that the point. Look at the new but wrong cylinder for the M37 it has machined into the area where the copper washer rides some defined grooves to cut into the copper washer and help make a better seal. The Deuce has none and I do not know what a American made one looks like or if it has the machining for the washer to cut into. The old M37 looks pretty smooth to but I see some lines but that might be from the old washer sitting on it for years and someone used an old copper washer that was off a cylinder that was machined better with the grooves. Does anyone have a American made Deuce or 809 series wheel cylinder to check for machining. Also one would think the copper washer when the bolt / fitting is tighten down good it still should seal ok but are we loosing quality these days. Also you can see the old copper washer has the machined grooves from a wheel cylinder that was machined. The other washer was from New China and is not as thick. Rant over.
Now with all that the point. Look at the new but wrong cylinder for the M37 it has machined into the area where the copper washer rides some defined grooves to cut into the copper washer and help make a better seal. The Deuce has none and I do not know what a American made one looks like or if it has the machining for the washer to cut into. The old M37 looks pretty smooth to but I see some lines but that might be from the old washer sitting on it for years and someone used an old copper washer that was off a cylinder that was machined better with the grooves. Does anyone have a American made Deuce or 809 series wheel cylinder to check for machining. Also one would think the copper washer when the bolt / fitting is tighten down good it still should seal ok but are we loosing quality these days. Also you can see the old copper washer has the machined grooves from a wheel cylinder that was machined. The other washer was from New China and is not as thick. Rant over.
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