It's been a couple years so I figured I'd get with it. Changed jobs at the end of 2016 and had to re-register here since I was using my old work email and couldn't remember my password. Anyway, still riding. Bike has 44k now. Rode today. My nutz are still frozen to the tank. My old user name was the same with one less "m" at the end. Hey Wolv, any way to reset my username back to the old one (with new email) so I can start where I left off? Did I miss the T-shirt order? After 5 years, mine is getting a little ragged. Glad to be back. Tim

 

Moderators don't have the powa to alter your user name. Admin isn't very active here. The best thing to do would be to message him and be patient.

Haven't run shirts in a while but I think you did miss the last run. You're the second person to show interest, if enough people did, I'd consider another go.

And btw, I rode to work this morning, it wan't that cold...

 

Welcome back, turbotim(m). I joined in the interim so you actually precede me.

...Wolverine, I'd buy a shirt, too.

Alan

 

Welcome back Tim. I joined about 4 years ago. In Boston the weather was better in February I rode a couple of week ends. March forget it and April is not any better so far. Good luck with the Admin, more like an absente landlord.
TEE shirts I'm in but what about the pockets!!!!

 

Lol!!

 

I'm finally sending the superhawk in for cct replacement. For anyone who knocks the stock ccts, these have 44,000 on them. Just goes to show if you treat it good, it will return the favor. Thanks for the warm welcome back. Now it's time to get a group ride together Wolverine. Do they still do the breakfast run in Ephrata? Tim

 

My stock CCTs have almost 40k on them as well.

 

Mine only made it to 20,000 before they ruined my engine, but they still went 20,000 miles. All this stock CCT bashing is for the birds.

 

You both like living on the edge, huh?

Yep, first sunday of every month.

 

Some just dont get it.....Its not that the stock CCTs can not make it 40k miles, it is that some will not make it 10k, some 15k, some 20k.... there is no constant known "safe" min mileage or years in use.... So your right, they can last for many years and miles, or few years or few miles... which will yours be?

 

For an engine that will go 100,000+ miles, 20,000 miles from stock CCTs is not good enough.

 

I have no response to that.

 

The secret is in the bell curve...

 

and some of us have run over 100K miles with stock ACCTs and believe, like Roger D, that the stock units have a much worse reputation than they deserve.
I also agree with Roger that the average D.I.Y. mechanic should not install mccts unless they really know what they are doing as it is very easy to cause catastrophic damage if done wrong.
Another bit just FYI Mr Ditchfield added about MCCTs, Yes he uses them in the race bikes (if allowed) but he also stated that they were adjusted before every meeting. Not just put in and forgotten about.

Being around this forum for a while, I have heard of more engines being damaged from improper mcct installations (most don't even want to pull the front valve cover) than I have heard of auto ccts blowing, but that is just me.
I also take all the reports of failures as you only hear about failures. No one posts up when all is good. So yes there have been many reports of failures but how many are still out there running with no issues?

So with all that, no the stock auto units do not last forever.....though they don't blow up just by looking at them either.
In fact after doing more research, I am going back to auto units.
Why would one do that you ask....

While an auto unit is in operation it is not in a fixed position. It extends and contracts with throttle position.
This keeps constant tension on the chain. With a fixed tensioner the chain cycles loose and tight.
While this causes no issues with running, I have to wonder what extra wear this will cause.
As I have not seen a high mileage engine torn down after running mccts for an extended period, I can't say for sure what, if any, damage is happening.


The way I see it, yes the auto units do need to be replaced (though again there is an argument of what that interval actually is set at) and can be damaged with improper use. Though they also can last just fine,
Then because they are easier on the cam chains, not only should things last longer but you should also get more rear wheel HP due to less friction losses.

In the end, run whatever lets you sleep best at night, On a new to you bike they should be changed out (unless they are mccts and then they should be checked for proper installation)