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Reload this Page Where to get a stellite exhaust valve for k301
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  #1  
Old 04-29-2016, 06:43 PM
Cubfan79 Cubfan79 is offline
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Default Where to get a stellite exhaust valve for k301
Working on my k301 kohler, I took it to the machine shop to be decked, honed, and check the valves. Shop said the exhaust valve has a "step" in it and should be replaced with a stellite exhaust valve. Where can I get one and should I replace the springs too?
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Old 04-29-2016, 07:33 PM
J-Mech J-Mech is offline
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As far as I know, you can still get one from Kohler. I'm not a huge fan of stellite valves, but whatever. They are just softer. They do handle heat well though. Don't just replace the exhaust valve, replace both.

Springs should be fine.
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Old 04-29-2016, 07:46 PM
Cubfan79 Cubfan79 is offline
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As far as I know, you can still get one from Kohler. I'm not a huge fan of stellite valves, but whatever. They are just softer. They do handle heat well though. Don't just replace the exhaust valve, replace both.

Springs should be fine.
Do you know a place I can get stellite valves?
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Old 04-29-2016, 07:51 PM
J-Mech J-Mech is offline
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Do you know a place I can get stellite valves?
I said Kohler still has them. Either go to a local Kohler dealer, or order it online from Kohler direct, or a site you choose.
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Old 04-29-2016, 07:53 PM
Cubfan79 Cubfan79 is offline
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So genuine kohler valves are made by stellite? Thanks J, I was hoping you would answer
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Old 04-29-2016, 07:57 PM
J-Mech J-Mech is offline
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Stellite isn't a brand, it is a material.
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Old 04-29-2016, 08:34 PM
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Jeff in Pa Jeff in Pa is offline
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Stellite isn't a brand, it is a material.
It's a very difficult to machine material due to it's hardness. One of the big pluses is it's resistance to heat.
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Old 04-29-2016, 09:01 PM
J-Mech J-Mech is offline
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It's a very difficult to machine material due to it's hardness. One of the big pluses is it's resistance to heat.
They may be hard to machine, but on a valve grinder, it will eat them up. They suck to grind. I don't like stellite valves.

Maybe it's that they are so hard it makes them brittle. On a valve grinder, they act like they are soft. I always thought they were softer..... I stand corrected. I'm a mechanic, not a machinist. They used to use them on a lot of motors. Not so much anymore. Now about all valves are stainless.
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Old 04-29-2016, 09:13 PM
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They may be hard to machine, but on a valve grinder, it will eat them up. They suck to grind. I don't like stellite valves.

Maybe it's that they are so hard it makes them brittle. On a valve grinder, they act like they are soft. I always thought they were softer..... I stand corrected. I'm a mechanic, not a machinist. They used to use them on a lot of motors. Not so much anymore. Now about all valves are stainless.
Yes, hard to the point of being brittle. Until about 5 years ago, you could forget machining stellite easily with carbide tooling. Now there are specialized inserts that will cut them using specific parameters ( surface footage , depth of cut )

It's not easy but somewhat possible now.

Now the it seems the hot ticket on valves is sodium filled stems
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Old 04-29-2016, 09:19 PM
J-Mech J-Mech is offline
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Now the it seems the hot ticket on valves is sodium filled stems
Yes. I knew that.
I don't know if the stainless valves are sodium filled or not. I just know that a good portion of valves now are stainless.
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