zrexpilot
Expert Class
Posts: 470
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posted June 30, 2009 04:10 PM
'03 to '04 zx12 motor swap ( problems)
I got a deal on an 03 motor to put in myn '04.
Well it wont start, sounds out of time, I put all, and I mean all my electronics on the motor.
The only thing it can be is the position of the cam sensor lobe, or the crank is different.
Anybody have a picture of the end of a cam sensor lobe off an 03
  
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NOX
Needs a job
PMRA / TMRC Super Street 4022
Posts: 3745
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posted June 30, 2009 09:26 PM
Cranks are the same.........
Cam sensor could be different......., might have to swap cams.......
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chuck762
Novice Class
Posts: 47
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posted July 01, 2009 03:18 AM
Ignition rotor is different. Did you swap that? I remember something about 16 vs 32 bit system between the 2 years.
Cam sensor and rotor use the same part numbers. Crank is the same part number as well.
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zrexpilot
Expert Class
Posts: 470
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posted July 01, 2009 03:43 AM
ignition rotor and pick up was changed
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zrexpilot
Expert Class
Posts: 470
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posted July 03, 2009 05:44 PM
got i going. The cams are the same but the actual lobe is different, its in a different position, bolted mine on and it fired right up. Did a leak down and the motor is in real good shape.
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krexken
Zone Head
Posts: 732
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posted July 04, 2009 08:35 PM
You talking about the cam position sensor thingy being different? Good to hear it wasn't anything major.
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zrexpilot
Expert Class
Posts: 470
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posted July 05, 2009 06:15 AM
quote:
You talking about the cam position sensor thingy being different? Good to hear it wasn't anything major.
The lobe itself, it bolts to the end of the exhaust cam. it has a key slot and positions itself on the cam, the 04 and 03 are different, they sit at different positions once bolted to the cam
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NINJA12
Needs a job
Posts: 3310
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posted July 05, 2009 09:07 AM
Glad you got it going, but that's well documented.
you could have grind the positon tit off and the bolt will hold it in the new place.
Doug Meyer gave us that tip.
I thought someone mentioned the exhaust cam tip early.
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