EVO All Evo Model Discussion

So, waht can happen if my cam chain is too tight.

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  #81  
Old 03-08-2014 | 12:09 PM
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Originally Posted by HarDlife
http://www.engineeringtoolbox.com/linear-expansion-coefficients-d_95.html

What is this crap?!&@$##!+)$\)(:%;-0=!&)-)‘)+%!_)%(")"!%;¤(&_)_&))__
 
  #82  
Old 03-08-2014 | 04:49 PM
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TD, since you went for a 50 mile ride and didn't note any whining, I'll assume it's not too tight, but did you check it when it was hoy?
 
  #83  
Old 03-08-2014 | 05:29 PM
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Originally Posted by bluharley
TD, since you went for a 50 mile ride and didn't note any whining, I'll assume it's not too tight, but did you check it when it was hoy?
I absolutely forgot to. I was so giddy after the ride
 
  #84  
Old 03-08-2014 | 05:38 PM
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Originally Posted by traildog
I absolutely forgot to. I was so giddy after the ride

You mean busy cleaning don't you??????????
 
  #85  
Old 03-26-2018 | 07:32 PM
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Default Primary chain

Originally Posted by bluharley
It will whine and tear up bearings if too tight. The chain gets shorter as it gets hot, so loose is better.
Actually, the chain gets longer as it heats up. Metal expands under heat.
 
  #86  
Old 03-26-2018 | 07:43 PM
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Originally Posted by clayguy
Actually, the chain gets longer as it heats up. Metal expands under heat.
Obviously you haven't read your service manual.

BTW did you notice this thread is 4 years old?
 
  #87  
Old 03-26-2018 | 08:42 PM
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I noticed the thread was 4 years old when I started, but now I'm 80 something posts in and I gotta know...did TD ever check the chain when hot???
 
  #88  
Old 03-27-2018 | 07:58 AM
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Originally Posted by hobobiker
I don't have a manual in front of me, but there should be a measurement of slack that you're shooting for when adjusting. On Shovels/Pans I use a machinist ruler and shoot for 5/8 of an inch if I'm remembering correctly...
Cold 5/8" - 7/8

Hot 3/8 - 5/8

This is most common for EVO's but check your FSM for your model.

I always adjust cold... after finding the tight spot I do 3/4" which is middle of the spec.

IMO too tight on the primary chain is the number one reason for a hard to find neutral.
 
  #89  
Old 03-27-2018 | 02:15 PM
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Originally Posted by clayguy
Actually, the chain gets longer as it heats up. Metal expands under heat.
The chain may get longer as it heats up, but the primary case and sprockets are heating up, too, and they heat up and expand MORE than the chain.
 
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