Posted by Bob on March 24, 2016 at 08:40:15 from (64.255.159.192):
In Reply to: 8N hydraulic leak posted by grizzly1 on March 24, 2016 at 08:30:01:
The gasket has blown. There's a passage from the pump up through the body of the tractor, where it matches up to the lift cover, there's a gasket there, as well.
The original gaskets contained asbestos, making them TOUGH.
The politically-correct gaskets sold today are not as tough.
When you replace it, clean surfaces WELL, and don't use sealant, especially silicon, as that makes the gasket slippery and even more prone to blow.
If you are planning to do this, have a service manual at hand and/or ask for details of the job at the "N"-specific Board linked below. The job involves draining the oil, pulling the PTO shaft, and then the pump.
When going back together, the control lever hanging down from the lift mechanism has be engage the control valve in the pump.
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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