ninja12
Needs a job
Posts: 3310
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posted September 26, 2002 11:06 AM
Engine builder question
The zx12 has 2 different rods, "J" and "k", weight codes.
all the replacement rods are "k".
The manual says Do not mix them.
If you need 1 rod and you have a "j" rod motor
Will you need to replace all 4 rods?
That's a bit hard to deal with because Big K decided
not to produce the "J" rods for resale.
Are there any options to this and at what cost in
vibration and reliablity.
  
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dougmeyer
Needs a job
moderated
Posts: 2713
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posted September 26, 2002 12:26 PM
For ideal balance you need to have adjacent pairs the same. So you need only two "K" weight rods. Put them either on 1&2 or on 3&4. (The two left rods or the two right rods). The ascending and decending rods cancel each other out.
Doug
____________
It's not that I think you're dumb, it's just that so much of what you know isn't true....
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ninja12
Needs a job
Posts: 3310
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posted September 26, 2002 12:55 PM
Thanks Doug,
An extra $80 is much better than an extra $240.
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supraman95mb
Expert Class
Posts: 212
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posted September 29, 2002 05:08 PM
Are you saying the rods in the zx12 motors are only $80 a piece?
____________
02 Stroked 12R
95 Supra Single Turbo 750+ hp
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NINJA12
Needs a job
Posts: 3310
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posted September 29, 2002 06:52 PM
Yeap ! at ronayers.com.
They really do have great prices.
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