Anton2K3
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Registered: 24th Jan 03
Location: Peterborough
User status: Offline
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Anyone know the answer to this, have to know for my assignement. My guess is that it offers more support, meaning the crankshaft is less likely to get bent?
Anyone else got any ideas?
Cheers
Anton 
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vibrio
Banned
Registered: 28th Feb 01
Location: POAH
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I don;t know but if I was wanting to know I would click here
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Anton2K3
Member
Registered: 24th Jan 03
Location: Peterborough
User status: Offline
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tried that, no useful info. I know there are a few mechanics on corsasport, so I was hoping they would know.
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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better balanced
order on a 4cyl engine would be
(B = Bearing, C = Conrod)
B-C-B-C-B-C-B-C-B
jyst holds it better & more support...
at a guess
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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yes more support, crank could be lighter, handle more power
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Anton2K3
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Registered: 24th Jan 03
Location: Peterborough
User status: Offline
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4) The main benefits of having 5 main bearings in a crankshaft are that they keep the it well supported, ensuring that the pressure put on it from the pistons stops it being from bent. The more places the crankshaft is supported, the more force can be placed upon it. Having five main bearings is also more balanced on a four cylinder engine:
B = Bearing, C = Conrod
B-C-B-C-B-C-B-C-B
cheers guys
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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Also less paracitic loss through the crank as less deflection of the crank will occur, in theory.
Which reduces bearing wear aswell as the force is disperssed across a wider surface area. And it will brace the block better aswell, making the whole assembley stronger.
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