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What Does "Splitting the Cases" Mean?

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Old Jun 26, 2010 | 10:07 PM
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Default What Does "Splitting the Cases" Mean?
I've heard this term thrown around when people get crank work done. What exactly does it mean (pics would be helpful)?
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Old Jun 26, 2010 | 10:18 PM
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each guy gets 12 cans.
 
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Old Jun 26, 2010 | 10:21 PM
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The bottom end of the motor, where the flywheels are housed, are two pieces and they are called the cases. When you open those cases to do work inside, that's called splitting the cases.
 
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Old Jun 26, 2010 | 11:34 PM
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Originally Posted by 1931jamesw
The bottom end of the motor, where the flywheels are housed, are two pieces and they are called the cases. When you open those cases to do work inside, that's called splitting the cases.
He's right. It's also referred to as bottom end work, as opposed to when people work on valves, heads, big bore, etc. which is called top end work.

Crazy
 
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Old Jun 27, 2010 | 07:24 AM
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It also means a lot more $$ on associated costs when you go 110"/bigger on your build
 
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Old Jun 27, 2010 | 01:34 PM
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Some engines have vertical centerlines. HD for one of course, but others like the old VW Beattle engine and the Porshe engine that are (were) air cooled.
 
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Old Jun 28, 2010 | 06:07 AM
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Originally Posted by 1931jamesw
The bottom end of the motor, where the flywheels are housed, are two pieces and they are called the cases. When you open those cases to do work inside, that's called splitting the cases.
Right on.
The cases, are split to bore them, install Timken bearing set-ups, and/or address cranshaft issues.
Scott
 
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Old Jun 28, 2010 | 07:04 AM
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It's major engine work. If you ever have to go that far and actually split the cases on your own.....dynamite is a good way to do it.

Seriously though....unless you are a real pro with a real shop and have the technical ability to go in there...you will never have a need to split your own cases.
 
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Old Jun 28, 2010 | 09:31 AM
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Originally Posted by Hillsidecycle.com
Right on.
The cases, are split to bore them, install Timken bearing set-ups, and/or address cranshaft issues.
Scott
Why would you need to bore a case? To install a larger crank?
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Old Jun 28, 2010 | 09:33 AM
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Originally Posted by 1550vt
It's major engine work. If you ever have to go that far and actually split the cases on your own.....dynamite is a good way to do it.

Seriously though....unless you are a real pro with a real shop and have the technical ability to go in there...you will never have a need to split your own cases.

Is there any consequence to having a case split, even by a pro shop? Does the case suffer any damage by being split?
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