• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

2006 510 cam chain tensioner issues

cjoecruz003

cjoecruz003

Husqvarna
AA Class
I checked the clicks on the cam chain tensioner and it was fully reset to 0 clicks showing.
Thinking it was a fluke, i installed it and ran the motor for a few mins throught the rpm range and it Ran great, then pulled it back out to check.
Don't have a pic but the grooves/teeth/clicks were worn down on the first 5-6 causing the ratcheting mechanism not to catch on them. So as the motor spun the cam chain tensioner was being pushed back in to 0. So I replaced the tensioner.
So w the new tensioner in, I've done one track day and only put about 20 miles on it. Noticed today an oil leak after I started it. The tensioner itself was cracked clean through. Seems the tensioner is being pushed backwards when the motors running but what would cause this?
Are the RR tensioners stronger as a unit or is the spring just stronger?
I'm going to get a new tensioner and if it breaks again then I might replace both chain sliders and the cam chain. Timing is spot on when I've checked the valves and again the bike idles and runs the RPMs just fine so I'm kinda lost.
 
Oh and btw this tensioner showed 6 clicks out. So as far as the That limit is concerned its in good shape.
 
When you originally installed the new ACCT, was the middle cap bolt out and the spring out and the plunger fully pushed into the ACCT?
 
In my mind, the only thing that puts pressure on the backside of the chain is deceleration, and that's just not that big of a deal. Instead of the combustion chamber explosions propeling the crankshaft forward and tightening the front side of the chain, deceleration from the rear tire is transfered into the engine and makes the back side of the chain tight. I don't see how that could break the ACCT.
 
Ok I understand what you're saying. I mean I did do hard decels and that came w a lot of eng braking but like you said I don't see it being much of an issue. What's your take on what the manual day about the CCT slider that it puts tension on? The book says replace when worn, metal will show thru the black coating and when that happens replace slider. I don't really see much wear on mine although there is a piece of metal showing but it's minimal. I don't see how that thin layer of coating being gone would cause this. That's the only thing that I could find that relates to the CCT. Timing n the actual cam chain is still fine
 
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