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[Hoist!]

Check this out! Anyone ever see this or use it before? It seems like a great idea. If the hydraulic cam chain tensioners work wonders, wouldn't these do the same for the primary chain? I'm liking the idea and am thinking of trying it. Anyone have any experience with it?


From the CCI Catalog, P. 12.24, P/N 60119 http://download.customchrome.com/2007pdfs/12_cc07.pdf
H-B 125 Hydraulic Automatic Primary Chain
Tensioner by Oregon Hot Bike
Designed to withstand the punishment that 100+ cubic inch engines
deliver to the primary drive. Unlike the standard chain tensioner that
works off of a spring pressure, this unit operates off of primary fluid
and works similar to the hydraulic lifter in an engine. It is completely
self-contained. Once installed, there is no need to adjust the primary
chain again.
• Reduces vibration
• Reduces chain wear
• Reduces chain rebound
• Designed for high-horsepower engines
• Smoother shifting
• Prevents chain from scoring inner parts of primary (a main cause of
primary fluid contamination)

60119 Fits Big Twins with wet primary

Hoist!

[hd-dude]

Howie;
i have installed several of these, they have been araound for quite a while. They are in my opinion the best one out there. Not sure if they will work in the 07 an up primary's as they have a different setup (hydro) than previous years.

[Hoist!]

Howie;
i have installed several of these, they have been araound for quite a while. They are in my opinion the best one out there. Not sure if they will work in the 07 an up primary's as they have a different setup (hydro) than previous years.

Thanks Jim. I'm going to call them tomorrow. It says all big twins, but they're not very specific. I'm going to use it on my '85 FXWG with the new RevTech 110" Evo w/6-speed trans, but would like to use it on my SERK too.

Hoist!

[Twolanerider]

Have used them on several bikes before also Howie.  Never an issue.  Just a really good part.

Only reason it's not in the current bike is that it wasn't supposed to fit along side the GP Designs bearing support.  Since that seemed the more important of the two I used the Harley tensioner instead as the bearing support is designed to accept it.

[Hoist!]

2 Goods, no Bads! I hope it works on my '07!

Hoist!

[hd-dude]

Have used them on several bikes before also Howie.  Never an issue.  Just a really good part.

Only reason it's not in the current bike is that it wasn't supposed to fit along side the GP Designs bearing support.  Since that seemed the more important of the two I used the Harley tensioner instead as the bearing support is designed to accept it.

Don:
it does work with the GP brace. You just need to grind a bit off the upper left corner for clearance.

[Twolanerider]

2 Goods, no Bads! I hope it works on my '07!

Hoist!

You're likely hosed.  Just checked J&P's online catalog.  Fitment description there is:

"For 1965-2006 Big Twin with wet primary (except 2006 Dyna®)."

Specifically excluding the 06 Dyna should catch the 07s as well.

[UglyJohn]

I live about 5 miles from Hot Bikes shop. I've known Roger for many years and he has a good reputation. I mean we're not riding buds or anything, but I've been to his shop a number of times in Central Point. Many and I mean many around here in the southern Oregon area has his tensioner. I've never heard anything bad about the product. It just works and works well. Just my .02 worth from a local.
Ugly John

[skreminegul07]

The Hayden M6 Hydraulic Tensioner has been around for a while.  Very similar description.

Hydraulic Automatic Chain Tensioner 1965-2005 
 
This automatic chain tensioner uses the oil in the primary as its own reservoir. It has its own pump and operates like a hydraulic lifter in the engine. Once you install it, there is no need to adjust the primary chain again. It will hold up to engines over 100hp. It maintains a constant zero lash between acceleration and deceleration. No more chain slap inside expensive primary cases or excessive vibration. USA Made. Sold each.

www.haydensm6.com
 

[grc]

The Hayden M6 Hydraulic Tensioner has been around for a while.  Very similar description.

Hydraulic Automatic Chain Tensioner 1965-2005 
 
This automatic chain tensioner uses the oil in the primary as its own reservoir. It has its own pump and operates like a hydraulic lifter in the engine. Once you install it, there is no need to adjust the primary chain again. It will hold up to engines over 100hp. It maintains a constant zero lash between acceleration and deceleration. No more chain slap inside expensive primary cases or excessive vibration. USA Made. Sold each.

www.haydensm6.com
 

Actually, the Hayden M6 tensioner is spring loaded, not hydraulically actuated.  Tom Hayden was the first to come out with an automatic tensioner. The HB-125 hydraulic tensioner is a more recent take-off on the Hayden unit, and now you also have the H-D version which is spring loaded.  The '07 and later bikes (plus '06 Dyna's) have the H-D version as standard equipment.

I'm not sure why anyone would want to remove the stock unit and install the M6 or HB-125; is there something going on with the H-D parts?  And as 2lane noted, I don't think the M6 or HB-125 will fit the new style primary anyway.  It would surprise me to see either manufacturer spend the money to come out with another part number to fit bikes that already have an automatic tensioner. 

Jerry

[Hoist!]

Thanks for all the info. I haven't had any problems so far with the stock HD tensioners, although I hear it keeps the chain too tight. I don't know this first hand though.

I will try it on my 110" RevTech w/new 6-speed on my FXWG overhaul.

It seems that you can more precisely control chain tension hydraulicly than you can with springs, ala the new cam chain tensioners.

Ugly John, would you mind checking with them out there about plans for the '07's? Thanks.

Hoist!

[spydglide]

It seems that you can more precisely control chain tension hydraulicly than you can with springs, ala the new cam chain tensioners.

Hoist!

Speaking of which, Can you use the new cam chain tensioners in a 103 motor to replace old tensioners?    Just wondering.  har! spyder

[skreminegul07]

Actually, the Hayden M6 tensioner is spring loaded, not hydraulically actuated.  Tom Hayden was the first to come out with an automatic tensioner. The HB-125 hydraulic tensioner is a more recent take-off on the Hayden unit, and now you also have the H-D version which is spring loaded.  The '07 and later bikes (plus '06 Dyna's) have the H-D version as standard equipment.

I'm not sure why anyone would want to remove the stock unit and install the M6 or HB-125; is there something going on with the H-D parts?  And as 2lane noted, I don't think the M6 or HB-125 will fit the new style primary anyway.  It would surprise me to see either manufacturer spend the money to come out with another part number to fit bikes that already have an automatic tensioner. 

Jerry

The description says that it (Hayden M6) is hydraulic.  Is that not true?  How could the manufacturer say it is hydraulic and uses primary oil to make it function as a hydraulic lifter?

[Fired00d]

Speaking of which, Can you use the new cam chain tensioners in a 103 motor to replace old tensioners?    Just wondering.  har! spyder

Go with gear drives no doubt about them, the new tensioners that H-D has come out w/haven't stood the test of time yet.

 
Ride Safe,
Fired00d
 

[Steve_G]

Go with gear drives no doubt about them, the new tensioners that H-D has come out w/haven't stood the test of time yet.

 
Ride Safe,
Fired00d
 

Obviously there seems to be some confusion about what chains we are talking about here.  Cam drive chains, or primary drive chains.  Personally I think the MoCo wouldn't change from the old style trouble prone spring loaded cam gear tensioners to the new style hydraulic tensioners without reason.  This type of system has been used for many years in automobiles without problems.  As far as primary tensioners, I have used the spring loaded Hayden M6 for a few years in my "01 Heritage Softail Classic with zero problems.  The mechanic who helped me install it has been a machinist and HD mechanic for over 30 years.  He's installed dozens of these things in both his bikes and customers bikes.  He says he's never experienced a failure.  (I normally do most of my own mechanic work, but I wanted someone who has previous experience with these to make sure the initial tension was correct.  He said some people adjust them too tight or too lose.)  If there haven't been problems, why search for a fix to something that works?

Shortly after I bought my '06 USE I had the local HD shop install the Harley automatic primary chain tensioner.  -Worked like a charm.