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CA18 CRANK PULLY
No life (a.k.a. DattoMaster)
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Hi guys does anyone know where I can get a single crank pully from?I am after one these to get more space between the engine and the radiator,can anyone point me in the wright direction?

Posted on: 2013/7/27 5:39
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Re: CA18 CRANK PULLY
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I think ross balancers (MJ race) is the only one, could be wrong though.

Posted on: 2013/7/27 5:57
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Re: CA18 CRANK PULLY
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Hi guys is the crank pully also known as the harmonic balancer?

Posted on: 2013/7/29 3:15
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Re: CA18 CRANK PULLY
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go custom and get other 2 pulleys machined down on a lathe
ebay has the alloy ones but no harmonic balancing inbuilt
or run a twin unit from fwd pulsar
otherwise big money for ross units.

Posted on: 2013/7/29 4:07
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Re: CA18 CRANK PULLY
No life (a.k.a. DattoMaster)
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I run the twin pulley / harmonic balancer from an EXA

Posted on: 2013/7/29 4:32
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Re: CA18 CRANK PULLY
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I've also used the 2 pulley version from an EXA but have searched around for a single pulley unit. Ross seem to be the only company that do a harmonic balancer one and your looking at over $600.

Don't bother attempting to have pulleys lathed off an original balancer as due to there construction you will find as soon as the outermost pulley is removed the rest will fall off
the centre harmonic section. Many have tried and many have failed...although I did find someone that was able to weld one back together.

As mentioned...you can buy aftermarket pulleys (although I've never found a 2 pulley EXA type) and I believe these can be machined down as they are made out of a single piece of
alloy. However, these aftermarket units do not incorporate the harmonic section designed to
help minimise crank vibrations. Opinion seems divided as to how beneficial the harmonic balancer is, but my thoughts are that if
Nissan thinks it's worthwhile it probably is.

Good luck and if you happen to find a cheaper brand of harmonic than the Ross unit let me know.

Posted on: 2013/7/29 9:21
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Re: CA18 CRANK PULLY
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I have a Ross unit. It wasn't a cheap item but in the end it's what was wanted and needed.
From Ross they don't do a single unit.....they use a twin pully unit they have and machined it down. After this their warranty is void as they have gone away from the original. The balancer is NUTRAL balanced anyway so the harmonic ballancer that some motors depend on for viabration reduction isnt in a ca18 from the factory.
If there are by questions ring Ross direct.
My 2c boys

Posted on: 2013/7/29 12:02
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Re: CA18 CRANK PULLY
No life (a.k.a. DattoMaster)
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I have an exa twin pulley and have about 15mm clearance to my 52mm radiator
For price it cost me $20 if I had the extra money I'd buy a Ross one as they are under driven and good for hi rpm
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Posted on: 2013/7/29 12:44
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Re: CA18 CRANK PULLY
No life (a.k.a. DattoMaster)
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Some untruths in this thread.
Let me share some truths.
N13 exa has 2 belt crank pulley that fits on s13 ca18.
S13 silvia pulley is 3 belt, and one pulley can be machined off.
You cannot make a 2 or 3 belt pulley into a single belt pulley without compromising the rubber inside the pulley.
None of the ca18 pulleys are solid, all are rubber isolated. This sounds like marketing hype from Ross sales guy.
The ca20 pulley looks the same externally as a ca18 one but has smaller crankhole and is not interchangeable.

Posted on: 2013/7/29 23:41
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Re: CA18 CRANK PULLY
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I have a Ross balancer as well, I order the MJ race as i came as a single pulley.

CA_1200_project, did you order the metal jacket or MJ race?

Posted on: 2013/7/29 23:49
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