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Always rotate your Clutch CCW to prevent issues when changing clutch parts!!

MrSled

MrSled

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Pretty sure I've spun my clutch both ways while adjusting weights . . . Anyone know how I'd even know if my timing was now off?
 
Beerman said:
Pretty sure I've spun my clutch both ways while adjusting weights . . . Anyone know how I'd even know if my timing was now off?
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I have done the same thing on my Nytro and it never did anything.... no idea where this is coming from but hate to say that I really dont agree.
 
Beerman said:
Pretty sure I've spun my clutch both ways while adjusting weights . . . Anyone know how I'd even know if my timing was now off?
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I did the same, hmm, I imagine the engine would run rough!
Don't see any change!

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Beerman said:
Pretty sure I've spun my clutch both ways while adjusting weights . . . Anyone know how I'd even know if my timing was now off?
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I'm wondering as well cause I'm sure I've spinned mine backwards too, maybe Ben will chime in as I'm curious how he found this out.
 
i take bens word for it, he must have hard facts or he wouldn't put it all over the Internet...
 
Friend of mine turned is Nytro backward and it jumped time. Think is was a 2011. There was a different timing chain tensioner and guide that he installed to fix the problem.
 
MrSled said:
I have done the same thing on my Nytro and it never did anything.... no idea where this is coming from but hate to say that I really dont agree.
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Turn it a little bit and nothing will happen. Turn it backwards several rotations and it will skip. Skip it a couple of teeth, then the pistons hit some valves when you try to start it. I dont know the exact number of reverse rotations, nor do I wish to find out.
 
Shagnos said:
Friend of mine turned is Nytro backward and it jumped time. Think is was a 2011. There was a different timing chain tensioner and guide that he installed to fix the problem.
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Just talked to him. It was a 2009. When he turned it backward it made a popping sound went to turn it back forward and the engine locked. The new chain guides were longer and closer to the crankshaft so the chain cannot jump the crank sprocket. I would assume the all the later engines would have the better guides now.
 
Thanks to all for sharing your thoughts. I did remember seeing a year end review here, but not anything about spinning backwards or the posts that would have surely followed. I don't want to test it to see if it does it and I thank Ben for sharing that warning.
 
Shagnos said:
Just talked to him. It was a 2009. When he turned it backward it made a popping sound went to turn it back forward and the engine locked. The new chain guides were longer and closer to the crankshaft so the chain cannot jump the crank sprocket. I would assume the all the later engines would have the better guides now.
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Total bs turning your clutch backwards... done it often on my viper and winder, no f'n issues doing that!

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GlennM said:
Total bs turning your clutch backwards... done it often on my viper and winder, no f'n issues doing that!

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So I'm a liar? Never said there was a issue with a Viper or Grinder. This was a 09 NYTRO that it happened to. People said they had never heard of the problem before, I have and gave the circumstances.:moon:
 
No ones calling anyone a liar, just maybe if you turn it quick and jerky enough in the right circumstance it could happen. I have never had an issue and I have a 2009 Nytro XTX with a super charger as well as I have owned a Turbo Viper and Viper XTX along with my new SW... never had an issue on any of those. I have also worked on piles of Nytros and Vipers in my shop.... still never had an issue. But am I lucky? Maybe.. but I will never turn them backwards again after hearing this. Better safe then sorry.
 
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I happen to be the one shagnos speaks of. I can tell everyone here first hand my experience turning my 09 fx nytro engine backwards while doing primary clutching. Anyone who has any experience with overhead cam engines knows there is a stationary chain guide and a tensioner chain guide, when rotated backwards the slack side or tensioner chain guide forces the hyd tensioner back (oh and I know it has a mechanical lock so it cant fully depress) but it did. Stay with me, now that the chain is completely slacked, it balled up leaving crank chain sprocket wedging the links between the lower portion of the stationary guide and sprocket, breaking the guide. So I removed the engine and replaced the timing chain components, the new guides were totally different then the original ones. The replacements were longer and had a different curve at the crank ends so that even when the timing chain was slack the links could not ball up between the sprocket and guides.
http://ty4stroke.com/threads/cams-keep-jumping-out-of-time.98452/#post-873375
 
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