CNW e start conversion, sprag failures

• Klüber Isoflex LDS 18 Special A: The industry gold standard. It is a dynamically light, synthetic grease approved by major manufacturers (like GMN and Onyx Racing). [1, 4]
• Klüber Asonic GHY 72 & Synth HB72-102: Excellent synthetic options for high-temperature and extreme-duty overrunning/backstopping clutches. [1]
• Mobilux EP 2 / Lith SHC-100: A widely used lithium-based multipurpose grease; perfect for standard industrial and automotive sprags. [1, 2]
• Shell Aeroshell No. 7 & 16: Trusted by heavy-duty industrial sprag manufacturers like Marland and Formsprag. [1, 2]
• Yamalube Ultramatic Grease: Widely used in ATV/motorcycle one-way starter and centrifugal clutches.
• Silicone Greases: Often recommended in vintage motorcycle and specific powersport manuals. [1]

DennisMo said:

I did a little research online and it seems to say that sprag grease should not have EP additives as below.

"You should never use an Extreme Pressure (EP) rated grease in a sprag clutch. EP additives contain slippery,
anti-friction compounds (such as sulfur-phosphorus or graphite) that prevent the sprags from gripping properly.
This leads to clutch slipping, over-speeding, and premature failure"

Then I looked for non EP greases for sprag bearings and the below came up. The Kubler is expensive. I don't know why the
Mobilux EP is on the list as it is EP.

I then found a non EP grease called Mobil Polyrex EM that is non EP and under $20 for a large grease gun type tube.
Love to get your thoughts because the next time I pull out the sprag, I could regrease it.

Dennis

• Klüber Isoflex LDS 18 Special A: The industry gold standard. It is a dynamically light, synthetic grease approved by major manufacturers (like GMN and Onyx Racing). [1, 4]
• Klüber Asonic GHY 72 & Synth HB72-102: Excellent synthetic options for high-temperature and extreme-duty overrunning/backstopping clutches. [1]
• Mobilux EP 2 / Lith SHC-100: A widely used lithium-based multipurpose grease; perfect for standard industrial and automotive sprags. [1, 2]
• Shell Aeroshell No. 7 & 16: Trusted by heavy-duty industrial sprag manufacturers like Marland and Formsprag. [1, 2]
• Yamalube Ultramatic Grease: Widely used in ATV/motorcycle one-way starter and centrifugal clutches.
• Silicone Greases: Often recommended in vintage motorcycle and specific powersport manuals. [1]

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MexicoMike said:

I have no experience with the CNW E-start though quality-wise, based on all my experience with CNW, I have always assumed it was more robust than the Alton. However, even if the CNW E-start had been available at the time I probably would have still selected the Alton because it allows the retention of the OEM Ham Can air filter assembly which was very important to me. It is also less "visible."

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