• Husqvarna Motorcycles Made In Sweden - About 1988 and older

  • 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 The previous version was outdated and no longer supported.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!

81 CR430 oil leaks

P

pcnsd

Husqvarna
A Class
My 81 leaks oil and it ticks me off that I have been unable to resolve it. It seaps slightly from the shifter and kick lever... no big deal. But it almost flows from the countershaft (drips 1 every 15-20 seconds). It appears to be coming from between the bearing ID and the countershaft OD. There is/was no o-ring or other seal on the inside of the cases. Does anyone else have this issue? I installed all new bearings to the cases. I have had it apart 3 times with no solution in sight. Anyone have an idea of what is going on and how to solve this?

Thanks,
Paul
 
Wildebeest90210 said:
Just a thought but do you have a decent breather fitted to prevent pressure at temp causing leaks?
Click to expand...

It has the stock breather on the clutch cover above the kicker. It is not pluged. 2 strokes do not typically have the pressure issue appearent in some 4 stroke singles because the tranny section is sealed from the crank.
I'll mention on most other countershafts I have seen there is an o-ring fitted to the countershaft that will seal on the bearing ID or an outer seal that seals on the shaft and sometimes both. Not so in this case. There did not appear to be any way to seal the two other than close tolerance fit. I considered assembling with silicone gasket maker, but again typically the countershaft and layshaft need to be free to move side to side slightly (thrust) or they will bind and make shifting difficult.

Thanks for your thoughts. Everything helps.

Regards,
Paul
 
As for the sprocket area leak. It just uses a sealed bearing pretty sure it is a 6205. I use one with just one seal like origional. Pretty much get a double sealed one and pry one off. I have discussed with some people about leaving the grease and both seals unlike origional. On your bike it is possible to pull it out and switch it. With a bit of luck the search function will turn up one of those threads. I personally think that bearing usually fails before the crankshaft, at least often, Unfortunately that bearing pocket and the one behind the clutch often really need to be sleeved to do a rebuild right. I had one that I just figured the oil was coming around the outside of the bearing. It is on the high side if the kick stand is used.

As for the other two in the clutch cover, magnesium isn't the best material for that, the automatics have a bushing for the kick starter, at least the ones I have dis-assembled and for the last version 87-88 a steel sleeve was used in those two spots. Though they made it impossible to fish out that sprocket bearing for them.
 
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