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 The previous version was outdated and no longer supported.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

AC 500 head stud torque ?

silverstreakNZ

Husqvarna
Pro Class
can someone tell me torque for the head nuts on a aircooled 500 ?

looked through the manuals but dont think anything in there covers air cooled 500

and any other procedures eg retourquing after a ride

cheers
 
I torque anyway because of the base gasket after a few runs may compress a tad. It does on the newer bikes too. My 98wr husqvarna sucked in the base gasket when she was brand new. Besides me hearing it and catching it right away what saved the engine was the maximal super M two stroke oil I was using. The tech at the husky dealer asked me what brand of two stroke oil was I using. I told him and he said the engine inside had a good coat of oil on everything. I use super m on the chrome/ impregnated cylinders.
 
I torque anyway because of the base gasket after a few runs may compress a tad. It does on the newer bikes too. My 98wr husqvarna sucked in the base gasket when she was brand new. Besides me hearing it and catching it right away what saved the engine was the maximal super M two stroke oil I was using. The tech at the husky dealer asked me what brand of two stroke oil was I using. I told him and he said the engine inside had a good coat of oil on everything. I use super m on the chrome/ impregnated cylinders.


i also retorque, but after a couple of heat cycles to be sure you own it
 
on another note . whats everyone got to say about ring gap . have a new ring but the gap looks too small to me . its a 3rd party ring so i believe it will need gapping
 
most 2 stroke rings have a semi circle to engage a pin in the piston for positioning
take this into account if you file the end
 
on another note . whats everyone got to say about ring gap . have a new ring but the gap looks too small to me . its a 3rd party ring so i believe it will need gapping
Max ring end gap is 0.8mm per tec section for all 82/83/84 huskies, so obviously something less than that for a fresh build. Assuming your piston has a pin like 2Premo mentioned, your ring should be notched like the ring below and your gap probably should be something like 0.3mmimage.jpg
 
above picture is the wrong type of piston ring
husky is of this style
PistonRingPins-1.jpg

yep . it already had a car ring with home made semi circle . will have to make that aswell on this ring aswell . ill check it next time im up there , yeah i see the manual states if >.8 replace it . doesnt state what new is tho

doesn anyone check it on new stuff ? or just order piston and ring kit and wang it in ?
 
old ring was at over .9 mm gap . rude
new ring was .4 mm gap . based on 4 thou per inch of bore the minimum gas should be .33 mill . so in it went
 
Back
Top