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Location:
melb
Registered:
August 2003
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3sgte gen1 - gen2 crank differences?
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Wed, 02 November 2005 06:02
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Hi All,
Does anyone know if the cranks on a gen1 3sgte are stonger or weaker than a gen2 3sgte ? I have been seaching over the weekend without much success.
I was thinking of starting a thread about the 3sge engines and try to show which parts are compatable between different generations. Is this a good idea ?
Thanks
Paul
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Location:
South Australia
Registered:
July 2002
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Re: 3sgte gen1 - gen2 crank differences?
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Wed, 02 November 2005 14:00
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Sort of 
I will let you know the exact differences between the two cranks when i blue-print my ST165's engine. The only difference I can see at this point is the oil-ways are slightly larger on the gen 2 crank.
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Location:
melb
Registered:
August 2003
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Re: 3sgte gen1 - gen2 crank differences?
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Thu, 03 November 2005 11:54
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Does anyone know ?
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Location:
MACKAY
Registered:
May 2002
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Re: 3sgte gen1 - gen2 crank differences?
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Thu, 03 November 2005 20:29
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The gen 2 also uses larger flywheel bolts so the flywheels are not interchangeable , I have put over 400 hp out of the gen 1 with standard internals witout problems other than headgaskets .
Trevor
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Location:
South Australia
Registered:
July 2002
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Re: 3sgte gen1 - gen2 crank differences?
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Thu, 03 November 2005 22:46
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What he said.
I think the flywheel is different size as the starter motor is in a different spot on most gen 2 engines.
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Location:
melb
Registered:
August 2003
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Re: 3sgte gen1 - gen2 crank differences?
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Fri, 04 November 2005 10:02
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I just picked up a gen1 3sgte and have stipped it for some parts and to have a look.
I puchased last year a gen2 3sgte crank (I hope it is, this is what I was told  )and it has the same bolt sizes as the gen 1
both are 10 x 1.25mm holes 8 of them.
the gen3 crank I have is also 8 bolt but is 12 x 1.50mm
What is the torque spec for the 10mm bolt crank ?
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Location:
South Australia
Registered:
July 2002
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Re: 3sgte gen1 - gen2 crank differences?
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Fri, 04 November 2005 23:57
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Have a look at the oil-ways if you aren't sure whether it's a gen 2 crank or not...
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Location:
melb
Registered:
August 2003
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Re: 3sgte gen1 - gen2 crank differences?
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Sat, 05 November 2005 05:48
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What am I looking for regarding the oilways ?
Thanks
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Location:
South Australia
Registered:
July 2002
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Re: 3sgte gen1 - gen2 crank differences?
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Sun, 06 November 2005 05:16
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I'm pretty sure the oil feed for the main or big-end bearings is larger on the gen 2 crank than the gen 1.
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Location:
western queensland
Registered:
September 2004
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Re: 3sgte gen1 - gen2 crank differences?
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Sun, 06 November 2005 06:20
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i have both here, the gen1 is slightly lighter this may mean weaker? also the gen1 has a smaller diameter rear main so requires a different seal,
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