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Old 10-24-2013, 06:23 PM   #1
meijer's trails OP
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my 74 husqy needs crank seals, do i need to split cases?

Is anyone familiar?

Do I need to split the cases to change crank seals in a 1974. Husqy wr250?
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Old 10-24-2013, 08:41 PM   #2
stainlesscycle
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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.
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Old 10-24-2013, 08:59 PM   #3
meijer's trails OP
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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

ideas?
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Old 10-24-2013, 09:00 PM   #4
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i think ill try my 2stroke leakdown checker(fashioned from a blood pressure cuff) first
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Old 10-25-2013, 12:04 PM   #5
Scootern29
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Quote:
Originally Posted by meijer's trails View Post
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

ideas?
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.
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Old 10-25-2013, 02:04 PM   #6
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thanks scootern,

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
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Old 10-28-2013, 04:23 PM   #7
stainlesscycle
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if the biggest problem you have splitting those is a stuck bolt, consider yourself lucky. you'll see
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Old 10-28-2013, 04:29 PM   #8
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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.
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Old 10-28-2013, 04:31 PM   #9
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Originally Posted by Scootern29 View Post
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.
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.
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