Stockmanreef
Well Known Member
I don't know how I would search my question so I figure I would ask.
I am about to put on the prop and so now it is time to start rotating the prop. Obviously this means that you have to take out the plastic caps where the top spark plugs go. I have dehydrator plugs and I am in the winter months up here in Michigan and I am keeping the garage warm--thus low humidity. But still every time you rotate the prop, you have to take out the dehydrator plugs.
I would prefer to not have to put in and take out the dehydrator plugs.
Has anyone made a system that hooks all the cylinders together through the spark plug holes? Then connect the dehydrator plugs to that system? Then when you rotate the prop all the pressure is equalized through the tubing that connects all the cylinders. This way you don't have to remove anything to rotate the prop since two cylinders are 180 degrees from the other two and therefore the pressure is equalized.
The problem is that I don't know how to transition from the spark plug holes (whether aviation or auto sized) to anything that I can adapt to tubing. The threaded holes are straight and not NPT. Does anyone know how to adapt spark plug holes to NPT? Where can I buy such fittings?
I also plan to suck any oil out of the cylinders prior to rotating the prop, so I can put the oil back into the cylinders when I don't plan to rotate the prop for a while. I will just put the prop back to where it is now, which I assume is at a point where all the cylinders are somewhere mid stroke.
Maybe I am too worried about this, but I did spend a lot of money on the engine so I would like to make sure it is fine when I crank it up the first time.
Thanks
I am about to put on the prop and so now it is time to start rotating the prop. Obviously this means that you have to take out the plastic caps where the top spark plugs go. I have dehydrator plugs and I am in the winter months up here in Michigan and I am keeping the garage warm--thus low humidity. But still every time you rotate the prop, you have to take out the dehydrator plugs.
I would prefer to not have to put in and take out the dehydrator plugs.
Has anyone made a system that hooks all the cylinders together through the spark plug holes? Then connect the dehydrator plugs to that system? Then when you rotate the prop all the pressure is equalized through the tubing that connects all the cylinders. This way you don't have to remove anything to rotate the prop since two cylinders are 180 degrees from the other two and therefore the pressure is equalized.
The problem is that I don't know how to transition from the spark plug holes (whether aviation or auto sized) to anything that I can adapt to tubing. The threaded holes are straight and not NPT. Does anyone know how to adapt spark plug holes to NPT? Where can I buy such fittings?
I also plan to suck any oil out of the cylinders prior to rotating the prop, so I can put the oil back into the cylinders when I don't plan to rotate the prop for a while. I will just put the prop back to where it is now, which I assume is at a point where all the cylinders are somewhere mid stroke.
Maybe I am too worried about this, but I did spend a lot of money on the engine so I would like to make sure it is fine when I crank it up the first time.
Thanks