HarleyTechTalk

Technical Forums => Milwaukee-Eight => Topic started by: 7125 on January 06, 2019, 02:32:29 PM

Title: Hayden primary chain tensioner
Post by: 7125 on January 06, 2019, 02:32:29 PM
Hi install one in my 2017 trike  rode 125 miles today big  improvement
Title: Re: Hayden primary chain tensioner
Post by: 1FSTRK on January 06, 2019, 02:42:31 PM
Can you tell us what you think it is doing for you that the factory auto adjuster did not do?
Title: Re: Hayden primary chain tensioner
Post by: 7125 on January 06, 2019, 03:00:52 PM
when i open it up had a 1/2 play in chain    no play now and clunk going into first is a lot better  just over all smoother
Title: Re: Hayden primary chain tensioner
Post by: 1FSTRK on January 06, 2019, 03:34:18 PM
Could you see why the stock one had not adjusted? Was it dirty or wedged in some way?
Odd to have one not adjust with the last design.
Title: Re: Hayden primary chain tensioner
Post by: No Cents on January 06, 2019, 03:57:15 PM
  let me see if I'm understanding you correctly.
You say you had 1/2" chain deflection on the top of the chain with the factory tensioner...and the Hayden made it tighter?
Title: Re: Hayden primary chain tensioner
Post by: Coyote on January 06, 2019, 04:04:39 PM
Quote from: No Cents on January 06, 2019, 03:57:15 PM
  let me see if I'm understanding you correctly.
You say you had 1/2" chain deflection on the top of the chain with the factory tensioner...and the Hayden made it tighter?

:oops:
Title: Re: Hayden primary chain tensioner
Post by: kd on January 06, 2019, 05:19:33 PM
 :agree:
Title: Re: Hayden primary chain tensioner
Post by: koko3052 on January 06, 2019, 05:29:26 PM
Hmmmm...overfixed! :potstir:
Title: Re: Hayden primary chain tensioner
Post by: rbabos on January 07, 2019, 07:41:07 AM
Quote from: No Cents on January 06, 2019, 03:57:15 PM
  let me see if I'm understanding you correctly.
You say you had 1/2" chain deflection on the top of the chain with the factory tensioner...and the Hayden made it tighter?
I think he means 1/2" free play the old school method, not counting the 3/8-1/2 offered by the shoe springs. That would make it very loose. Detectable free play without compressing the shoe spring should be in the 3/16 range or a total of about 5/8" all in.
Ron
Title: Re: Hayden primary chain tensioner
Post by: HD/Wrench on January 07, 2019, 08:25:40 AM
the spring loaded POS allows the chain to BOUNCE full amount of travel none stop . 

Ever see a car or truck with bad shocks  :hyst: :hyst:
Title: Re: Hayden primary chain tensioner
Post by: rbabos on January 07, 2019, 08:52:22 AM
Quote from: GMR-PERFORMANCE on January 07, 2019, 08:25:40 AM
the spring loaded POS allows the chain to BOUNCE full amount of travel none stop . 

Ever see a car or truck with bad shocks  :hyst: :hyst:
Yes but for some reason,  some like the damn things. Terrible design in my opinion.
Ron
Title: Re: Hayden primary chain tensioner
Post by: 1FSTRK on January 07, 2019, 09:10:55 AM
Never underestimate the power of sugar pills.  :wink:
Title: Re: Hayden primary chain tensioner
Post by: HD/Wrench on January 10, 2019, 06:45:13 AM
Quote from: 1FSTRK on January 07, 2019, 09:10:55 AM
Never underestimate the power of sugar pills.  :wink:


:hyst: :hyst: Yes I guess you are correct . 
Title: Re: Hayden primary chain tensioner
Post by: Buglet on January 10, 2019, 08:45:35 AM
    Who's on the sugar pill the guy that says it work for him or the guy that says it no good.
Title: Re: Hayden primary chain tensioner
Post by: HD/Wrench on January 10, 2019, 09:09:09 AM
anyone  that says it better than the OEM unit , would be my statement .

It fails on design alone , You cannot use a spring in that application without a dampener system .  The spring will be compressed and it will release its stored energy . This will happen over and over and with that you have much more chain deflection than stock . Easy to see this by just grabbing the chain and pulling it with both factory and hayden.

The new primary has less room up front and on every one I have seen I can see where the chain has made contact . Now sure you can shim it further , Ok so now the load and un load process only gets more violent as you have increased preload on the spring and it snaps back faster .


Lets take it one step further and talk about HD and their blatant disregard for patents . If it works so sell why did they not use it ??  Cost wise its much easier to manufacture ,   

I think I will stick with my first answer anyone that feels they are a better option than the OEM   .

:up:
Title: Re: Hayden primary chain tensioner
Post by: rbabos on January 10, 2019, 01:16:29 PM
Quote from: GMR-PERFORMANCE on January 10, 2019, 09:09:09 AM
anyone  that says it better than the OEM unit , would be my statement .

It fails on design alone , You cannot use a spring in that application without a dampener system .  The spring will be compressed and it will release its stored energy . This will happen over and over and with that you have much more chain deflection than stock . Easy to see this by just grabbing the chain and pulling it with both factory and hayden.

The new primary has less room up front and on every one I have seen I can see where the chain has made contact . Now sure you can shim it further , Ok so now the load and un load process only gets more violent as you have increased preload on the spring and it snaps back faster .


Lets take it one step further and talk about HD and their blatant disregard for patents . If it works so sell why did they not use it ??  Cost wise its much easier to manufacture ,   

I think I will stick with my first answer anyone that feels they are a better option than the OEM   .

:up:
What's your point? :kick:
Ron
Title: Re: Hayden primary chain tensioner
Post by: HD/Wrench on January 10, 2019, 01:32:14 PM
 :horse:
Title: Re: Hayden primary chain tensioner
Post by: PoorUB on January 10, 2019, 03:11:41 PM
You guys are way too funny....in a said sort of way! :potstir:
Title: Re: Hayden primary chain tensioner
Post by: Timber0472 on January 11, 2019, 07:15:53 AM
Hey guys, not to hyjack this thread but have any of you had or heard of these tensioners causing vibrations? I have another thread about this but I think Ive isolated my vibes to the primary. I have the oem tensioner and I have checked everything (exhaust, cam chest, wheels, and suspension & mounts...nothing). Did a few hard downshifts and they went away...
Title: Re: Hayden primary chain tensioner
Post by: Hillside Motorcycle on January 11, 2019, 07:24:03 AM
Threw the towel in on those Hayden units back in the Shovel days.
Had another one in 2 weeks ago with a broken spring.
Replaced the spring with one of more pressure.
Those units are junk.