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Clutch bell and spur too far to mesh. Help!

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Clutch bell and spur too far to mesh. Help!

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Old 06-13-2019, 02:26 AM
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Default Clutch bell and spur too far to mesh. Help!

Good morning.. Iíve been upgrading my Serpent 811 RTR and the only thing left is the Novarossi engine that gives away the fact that it was once an RTR. I installed a Novarossi clutch with 13T bell and cannot get it close enough to the 46 spur to mesh. Do I need a much bigger spur or bigger bell? I even tried a 48 spur and itís still too far. Any help/guidance is appreciated.
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Old 06-13-2019, 03:16 AM
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Seeing as normal gearing is 13/48 I wouldnít quikly assume 46 is incredibly small but I think itís more in the electric gearing range which makes me think your clutch Bell would need to be bigger but Iíve never ran electric or a serpent to tell you forsure if those are infact different then stock. I would check there tho and make sure your center diff gear is same as stock cause it sounds wrong.
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Old 06-13-2019, 03:29 AM
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Use the 48T spur with the 13T Serpent original bell.

what engine mounts do you have? If they are the RTR blocks it does not give you any play. If so purchase these

https://www.absolutehobbyz.com/Serpent-Engine-Mount-2pcs_p_494011.html

that will help with the mesh. Let us know the outcome
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Old 06-13-2019, 06:36 AM
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Sometime raising the engine can help. It might be to low to actually hit the spur. The new mounts should help but check if its sitting at the right height as well.
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Old 06-16-2019, 07:31 AM
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Not sure about the RTR but the serpent SRX8 line of buggies has their own clutch bells and spurs that are designed to not need mesh adjustment. Try the Serpent clutch bell and it should be a better mesh.
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Old 06-16-2019, 11:30 PM
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I am pretty sure something else is the issue since that is very normal gearing, maybe check in the 811 forum for help? However if that really is the case (I am unfamiliar with the car) take the chassis to a machinist shop to enlarge the engine or center diff slots
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Old 06-27-2019, 02:20 AM
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So to conclude this thread, only Serpentís clutch and bell will work with the 811. Thanks to everyone who contributed to the post 🤙
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Old 06-28-2019, 04:58 AM
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I also have a Serpent 811 RTR and after using the lower engine mounts (I don't run the pull start) had the same issue with not being able to get the engine close enough to the spur gear to run a 13T clutch bell. But I have just picked up a 50T spur gear (complete diff actually) from the truggy and that gives more than enough adjustment to run a 13T or 14T clutch bell.

Bought the complete truggy diff because it was on special at Absolute Hobbies for 75% off
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