Posted by used red MN on November 08, 2023 at 22:16:07 from (68.46.31.28):
In Reply to: Re: Cub not starting posted by rustred on November 08, 2023 at 18:50:16:
I looked back at some of your other posts trying to get a feel of your knowledge level concerning ignition timing. I want to make sure you understand some things about this. Rustred said get it on TDC of compression, that means the compression stroke of the piston. This means it has to have both valves closed to push air out or build pressure against your thumb and then the piston is brought to the top and the timing marks aligned for timing your mag. Every other time the piston comes to the top of the cylinder it is on the exhaust stroke. It will not push pressure on your thumb on that stroke because the exhaust valve is open. The last thing to be clear on is to make sure the number one piston can pump compression. Do that by pulling the plugs and cranking it over a couple time to make sure it will build pressure against your thumb. Valves can stick on engines that set for a time. Be a good idea to pull all the plugs and check for some amount of compression in all of them. That way you know if that is an obstacle keeping it from starting as well. You have a manual for this tractor? If not go to Farmallcub.c.. I bet you find one there.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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