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OS-12 CV-R -- Need help w/ shaft length.

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OS-12 CV-R -- Need help w/ shaft length.

Old 02-14-2003, 07:33 PM
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Celly013
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Default OS-12 CV-R -- Need help w/ shaft length.

Click here for info:

http://www2.towerhobbies.com/cgi-bin...?&I=LXUJ73&P=0

I'm trying to figure out if this is a standard shaft, or short shaft, engine? I lookedon OS's site and that was even less help.

Thanks!
Old 02-14-2003, 09:39 PM
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2000-redrider
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Default OS-12 CV-R -- Need help w/ shaft length.

I think that's the standard length. It just looks short because there's a spacer (not sure what it does) on there. It's the motor I'm currently using in my TC3, so I had to cut it down.
Old 02-14-2003, 10:08 PM
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Celly013
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Default OS-12 CV-R -- Need help w/ shaft length.

So you had to cut it down to 5mm?

How do you like the engine? Does it scare you that it doesn't come with a warranty?
Old 02-14-2003, 10:33 PM
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LooneyTunes
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Default OS-12 CV-R -- Need help w/ shaft length.

2000-redrider is right. It is not the short shaft version. The short thaft versions of OS engines have a '(S)' in the name. For example '12 CV(S)'. While a 'X' designates a pull start. As in '12 CV-X(S)'.

I have that CV-R in my Kyosho Ultima. It is one sweet engine.
OS requires you to run at least 18% oil in your fuel. I think OS is the only manufacturer that requires that much oil for their car engines. I guess, since there is no warranty it really does not matter. :stupid: But it could not hurt.

Oh. I almost forgot. I had to cut the shaft. I got one of these nuts to help me with the cutting.

You can find detailed instructions on cutting a crankshaft on page 30 of the March 2003 issue of Radio Control Nitro magazine.

LT
Old 02-14-2003, 10:37 PM
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2000-redrider
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Default OS-12 CV-R -- Need help w/ shaft length.

I not sure of the exact length I had to cut it down to. I just used the pilot shaft as a guide. Although I've had the motor for over a year, I've probably only put 1 gallon through it. IMO, it's a very good motor. It's very reliable and has decent power. I wouldn't worry about the fact it doesn't come with a warranty. Just keep it clean and don't run it too hot, and you shouldn't have any problems. I also have the .15 cv-r, which I run in my MT.
Old 02-14-2003, 11:22 PM
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Celly013
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Default OS-12 CV-R -- Need help w/ shaft length.

Ok, so this guy will run nicely in a HPI MT, and the shaft is long enough to fit... I guess that's all that counts..

LooneyToons, what kinda fuel do you run in it?
Old 02-14-2003, 11:42 PM
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2000-redrider
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Default OS-12 CV-R -- Need help w/ shaft length.

It will drop right into the HPI MT, assuming you have the correct engine mounts of course. This motor, and a 14 tooth clutch bell your MT should run very nicely.
Old 02-15-2003, 12:29 AM
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LooneyTunes
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Default OS-12 CV-R -- Need help w/ shaft length.

Celly013,
I run Wildcat Eliminator Premium Plus. The 18% oil blend.

LT

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