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Discussion in '2 smokers' started by meijer's trails, Oct 24, 2013.
Is anyone familiar?
Do I need to split the cases to change crank seals in a 1974. Husqy wr250?
you're splitting.. left side seal is inboard of bearing. them cases suck. i don't know why the husky cases are so goddamn tight.
wouldnt you know it.
the easy to reach right side looks clean as a whistle.
and im already stuck on a kickstart case screw. the one right behind the cylinder.
im thinking of cutting it at the head so i can still grab it later and heat the case some to try to loosen it
i think ill try my 2stroke leakdown checker(fashioned from a blood pressure cuff) first
Try a small sharp chisel and try and move the screw in the loosening direction. I just had to do this the other day. Two or three good whacks with a small hammer will usually do it.
i seeped in some pb blaster lastnight.
used a little heat, pressure back and forth.
today i hit it with an impact driver, and it did the trick!
dodged my first bullet
if the biggest problem you have splitting those is a stuck bolt, consider yourself lucky. you'll see
Ive split more then 8 sets of old Husky cases,the thing is opening them up and not having them be corroded around the crank area,borrowing a proper case splitter can make your life a bunch easier. Porosity in the crank area does the same thing or worse then leaking crank seals.
Ive bapped them apart with woodblocks and a 5 lb sledge but its not the preferred way to do it. Really eyeball all the center case screws with good light to be sure they are all out and accounted for.
If theres room just wapping the screw or bolt side with a small punch to side stretches it a little and does wonders for loosening them. Just dont want to break what ever casing the bolt is in.