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Old Aug 8, 2005 | 07:09 PM
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Default FLYWHEEL ROTATION

ok i go to a tech school for automotive and my teacher wants to know what direction the flywheel turns on our cars so

for hondas which way does the flywheel turn?

and dont flame i just need a simple answer
and please no guessing i want a fact
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Old Aug 8, 2005 | 07:40 PM
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Default Re: FLYWHEEL ROTATION (THEROPE)

engine rotates counterclockwise--so does flywheel. Most other motors rotate clockwise--most Hondas are pretty unique in that regard.....
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Old Aug 9, 2005 | 04:52 AM
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Default Re: FLYWHEEL ROTATION (d16dcoe45)

ty
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Old Aug 9, 2005 | 07:47 AM
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Default Re: FLYWHEEL ROTATION (d16dcoe45)

If you're looking from the right side of the car, looking AT the flywheel, it turns clockwise. If you're on the left side of the car, looking at the drive pulleys, it's counterclockwise. Get it?

Hondas are backwards from most others, until the V-6 & K-series engines which now spin the 'traditional' way.
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Old Aug 9, 2005 | 08:22 AM
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Default Re: FLYWHEEL ROTATION (JimBlake)

agreed
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Old Aug 9, 2005 | 10:19 AM
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Default Re: FLYWHEEL ROTATION (gsrious)

B, D and H/F series engines are of a non conventional rotation. They spin counter clockwise, hence why the transmission is on the passenger side. They did this for balancing purposes and to save money they made the engine spin backwards so they would not have to use an idler shaft in the transmission to reverse the rotation.
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Old Aug 9, 2005 | 10:50 AM
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Default Re: FLYWHEEL ROTATION (DirtySol)

i kinda get it

but how does it turn clockwise on one side and counterclockwise on the other?
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Old Aug 9, 2005 | 11:11 AM
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Default Re: FLYWHEEL ROTATION (THEROPE)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEROPE &raquo;</TD></TR><TR><TD CLASS="quote">i kinda get it

but how does it turn clockwise on one side and counterclockwise on the other?</TD></TR></TABLE>

mmm..you can do it.
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Old Aug 9, 2005 | 11:22 AM
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Default Re: FLYWHEEL ROTATION (DirtySol)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DirtySol &raquo;</TD></TR><TR><TD CLASS="quote">They did this for balancing purposes...</TD></TR></TABLE>Or maybe Honda started out from a tradition of building motorcycle engines, which traditionally spin that way...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEROPE &raquo;</TD></TR><TR><TD CLASS="quote">but how does it turn clockwise on one side and counterclockwise on the other?</TD></TR></TABLE>There's a special sensor in the engine, so it can tell which side you're standing on... If you had a twin brother, & you each stand on opposite sides, it'll probably stall.
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Old Aug 9, 2005 | 01:23 PM
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Default Re: FLYWHEEL ROTATION (JimBlake)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JimBlake &raquo;</TD></TR><TR><TD CLASS="quote">Or maybe Honda started out from a tradition of building motorcycle engines, which traditionally spin that way...

</TD></TR></TABLE>

I guarantee that if you were to take an empty JDM shell and weigh it you would find that the front right is lighter. Honda designs their vehicles for their market first and modifies from their to export countries.....kinda like every vehicle manufacturer in the world that sells to outside countries except for maybe a few European countries (ie. Porsche, Ferarri, Lamborghini, Lotus, etc.)
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Old Aug 9, 2005 | 01:38 PM
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Default Re: FLYWHEEL ROTATION (DirtySol)

OK... I had heard about the motorcycle tradition, since their first cars had 600cc motorcycle engines. It's traditional to put the chain on the right side of the bike, so the engine is on the left. I never knew if that was just a legend or what.
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Old Aug 9, 2005 | 02:50 PM
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Default Re: FLYWHEEL ROTATION (JimBlake)



From what I've seen, most of Hondas bikes have the chain on the left side This includes the 600ccs, like we use on the FSAE car at school. Chain is on the left side. My friend has a CRF450, chain is on the left as well. Dunno, just what I've seen in my minimal experience with bikes. Flame on!
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Old Aug 9, 2005 | 04:36 PM
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Default Re: FLYWHEEL ROTATION (JimBlake)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JimBlake &raquo;</TD></TR><TR><TD CLASS="quote">
There's a special sensor in the engine, so it can tell which side you're standing on... If you had a twin brother, & you each stand on opposite sides, it'll probably stall.
</TD></TR></TABLE>

lol

All kidding aside, the direction of rotation will vary as it is relative to the end you're looking at. From the front of the motor (the accessory/timing belt, etc. side) all except the K series 4's , the J series V6's and the F20C (I think) spin counterclockwise.
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Old Aug 9, 2005 | 09:38 PM
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Default Re: FLYWHEEL ROTATION (DirtySol)

DSM's trannys are on the pass. side, and thier motors spin the traditional way.
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Old Aug 10, 2005 | 03:50 AM
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Default Re: FLYWHEEL ROTATION (drdisco69)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drdisco69 &raquo;</TD></TR><TR><TD CLASS="quote">From what I've seen, most of Hondas bikes have the chain on the left side</TD></TR></TABLE>OK, so I'm not a motorcycle guru. Was that true in late '60s for the engines that went into the Honda 600 cars?
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Old Aug 10, 2005 | 05:59 AM
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Default Re: FLYWHEEL ROTATION (JimBlake)

A quick google images search for honda n600 turns up a lot of badass old ads for it, check it out. Anyway, it looks like the engine was smack in the middle of the car:




So that doesn't give us much clue as to where the chain is. In that first picture, I don't see anything resembling a chain on the right side, but that doesn't mean it isn't there. Someone with more knowledge needs to chime in!
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Old Aug 10, 2005 | 07:04 AM
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Default Re: FLYWHEEL ROTATION (drdisco69)

No, I didn't mean the car would have a chain; they made a tranny for it. But I thought they didn't design a whole new engine, so they took the motorcycle engine & used it without reversing it's direction.

But it looks like a drive belt/pulley between the engine & battery. ??
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Old Aug 10, 2005 | 07:58 AM
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Default Re: FLYWHEEL ROTATION (JimBlake)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by snowseeker &raquo;</TD></TR><TR><TD CLASS="quote">DSM's trannys are on the pass. side, and thier motors spin the traditional way.</TD></TR></TABLE>

you are correct about that. But if you were to take a DSM tranny apart you would see that it has an idler shaft to reverse the rotation so that it will spin the differential the correct direction
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Old Aug 10, 2005 | 09:05 AM
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Default Re: FLYWHEEL ROTATION (THEROPE)

ok i get it

so instead of counterclockwise at the flywheel and clockwise at the crank (like normal)

honda does it clockwise at the flywheel and counterclockwise at the crank

is that right
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Old Aug 10, 2005 | 09:40 AM
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Default Re: FLYWHEEL ROTATION (THEROPE)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEROPE &raquo;</TD></TR><TR><TD CLASS="quote">ok i get it

so instead of counterclockwise at the flywheel and clockwise at the crank (like normal)

honda does it clockwise at the flywheel and counterclockwise at the crank

is that right</TD></TR></TABLE>

Right.

And right about the DSM, just pointing out where the tranny was.
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Old Aug 10, 2005 | 01:59 PM
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Default Re: FLYWHEEL ROTATION (snowseeker)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEROPE &raquo;</TD></TR><TR><TD CLASS="quote">ok i get it

so instead of counterclockwise at the flywheel and clockwise at the crank (like normal)

honda does it clockwise at the flywheel and counterclockwise at the crank

is that right</TD></TR></TABLE>

wrong......the crank AND flywheel turn counterclockwise on a honda B, D and H/F series and other unconventional rotation engines. The entire engine spins "backwards", cams and all. The likewise goes for conventional engines, the flywheel AND the crank spin clockwise. It would be impossible for the crank and flywheel to spin opposite of each other because they are directly bolted together.
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Old Aug 10, 2005 | 02:02 PM
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Default Re: FLYWHEEL ROTATION (DirtySol)

What everybody was trying o say was that the crank and flywheel spin the same direction. However, when you look at the motor from different sides it will look like they are spinning oposite direction. Timing belt side the motor will be turning counterclockwise. If you look at the flywheel side it will "look" like the motor is spinning clockwise.
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Old Aug 11, 2005 | 03:50 AM
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Default Re: FLYWHEEL ROTATION (msmotorsports)

yeah i get it now it all depends what side you are looking at

the whole point to the project was to show that american made cars GM, ford, chevy, they all spin the same way infact 99% of all cars spin the same way. except honda they said **** it lets go the other way and it turned out to be a very good idea all the way up untill 03-04 when they followed the rest of the group.

so my teacher just wanted to show differnt style's of motor's not to say that one is better then the other just to say there is other ways of doing it.
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Old Aug 11, 2005 | 04:20 AM
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Default Re: FLYWHEEL ROTATION (THEROPE)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEROPE &raquo;</TD></TR><TR><TD CLASS="quote">so my teacher just wanted to show differnt style's of motor's not to say that one is better then the other just to say there is other ways of doing it. </TD></TR></TABLE>
Here's another strange configuration for you...
http://www.wpafb.af.mil/museum/engines/eng30a.htm

The French LeRhone & German Oberursel engines were 'rotary' engines which doesn't mean the same thing as Mazda... On an airplane, the crankshaft came out the back of the engine & was bolted to the firewall. So the ENTIRE ENGINE was spinning around. They bolted the propeller directly to the crankcase.
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Old Aug 11, 2005 | 05:44 AM
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Default Re: FLYWHEEL ROTATION (JimBlake)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JimBlake &raquo;</TD></TR><TR><TD CLASS="quote">http://www.wpafb.af.mil/museum/engines/eng30a.htm</TD></TR></TABLE>

Link no worky. But those are some awesome engines. All airplane engines are pretty awesome, in fact. When you can get like 800hp and only rev to like 3500rpm, you've got some torque in there...

If I remember correctly, one of the reasons for the whole engine spinning was better air cooling, but I can't remember if there was another reason or not. Do you know?
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