97 ZL440 crank seals, do I need to split the case? - Snowmobile Forum: Your #1 Snowmobile Forum
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Old 11-24-2009, 06:24 AM   #1 (permalink)
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97 ZL440 crank seals, do I need to split the case?

Hi again guys, I am considering a 97 ZL440 LC as a second machine, the woman that owns it doesn't have much knowledge of the sled other than it had a piston changed 2 years ago. It has 5000 miles on it, looks good but I know from experience what can be hidden inside the engine/suspension etc. If I buy the machine, I would rebuild top end immediately, my question is, if I find a leaking crank seal, is this an easy fix or do I need to split the crank case? As always, your assistance is greatly appreciated.
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Old 11-24-2009, 06:53 AM   #2 (permalink)
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Yep the only reason to have to pull the motor! It really isn't a major major deal, just alot of time! But then it's worth it!
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Old 11-24-2009, 07:12 AM   #3 (permalink)
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That sucks, I don't have the tools to split the case, roughly how much would it cost to have it done if I pulled the motor?
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Old 11-24-2009, 12:02 PM   #4 (permalink)
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Just splitting the case to change seals can be done with regular tools. You will need to have the clutch off and to pull the flywheel as well.
Those are the only special tools needed, clutch and flywheel pullers.
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Old 11-24-2009, 05:43 PM   #5 (permalink)
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Originally Posted by RJ Gleason View Post
Just splitting the case to change seals can be done with regular tools. You will need to have the clutch off and to pull the flywheel as well.
Those are the only special tools needed, clutch and flywheel pullers.
Really, I was under the impression that the two halves of the crankcase are pressed together and special tools were needed to get it apart and to reassemble it. So they come apart fairly easily then?
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Old 11-24-2009, 05:52 PM   #6 (permalink)
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Originally Posted by kingston_rider View Post
Really, I was under the impression that the two halves of the crankcase are pressed together and special tools were needed to get it apart and to reassemble it. So they come apart fairly easily then?
You may be thinking about the crankshaft... Those are 2 piece pressed together and a special tool is required.
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Old 11-24-2009, 05:55 PM   #7 (permalink)
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Could be, never had a sled bottom end apart before, so the crank seals wouldn't be that big a deal. Do you have to split the crank to do the crank bearings?
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Old 11-25-2009, 09:48 AM   #8 (permalink)
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Yep.
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1980 AC Pantera (donor engine to the 90 wildcat)


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Old 11-25-2009, 09:51 AM   #9 (permalink)
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Thks RJ
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Old 11-25-2009, 05:01 PM   #10 (permalink)
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It is very straight forward, just take your time!
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