S2000 Under The Hood S2000 Technical and Mechanical discussions.

towing question

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Old Apr 18, 2007 | 10:32 AM
  #31  
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thanks spitfireS.

so the gears DO spin even when the car is in neutral.

i cannot understand this until I see the trans taken apart...

the only thing that makes sense to me is the way that howstuffworks.com explains a manual tranny, albeit a very simple one...

i suppose if there was a diagram of how the s2k trans works (since it is different from the way the trans in howstuffworks.com works)...i would understand...as of now...i can't picture it.

thanks again.
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Old Apr 18, 2007 | 12:29 PM
  #32  
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There is a shaft inside the transmission that is directly connected to the driveshaft. Whatever picture you have in mind or on a web page, you should agree on this, yes?

Even if your mental model of the transmission were accurate and all the gears were freewheeling and only this one shaft were turning (not the actual case inside the S2000 transmission but what the hell...), what lubricates this one shaft's bearings?

That would be oil. Well, it would be if the engine were running.
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Old Apr 18, 2007 | 12:40 PM
  #33  
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Originally Posted by Krenath,Apr 18 2007, 12:29 PM
There is a shaft inside the transmission that is directly connected to the driveshaft. Whatever picture you have in mind or on a web page, you should agree on this, yes?

Even if your mental model of the transmission were accurate and all the gears were freewheeling and only this one shaft were turning (not the actual case inside the S2000 transmission but what the hell...), what lubricates this one shaft's bearings?

That would be oil. Well, it would be if the engine were running.
i understand, i posted earlier that the secondary shaft gear that turns the countershaft would be turning and most likely to be damaged.

what i don't understand is HOW the s2k tranny works, as compared/contrasted with my understanding from howstuffworks.com but it doesn't matter, i can't understand unless i see a diagram or actually see it physically.

BUT, didn't spitfireS just show that the trans DOES INDEED receive oil through the oil pump?
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Old Apr 18, 2007 | 12:59 PM
  #34  
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When towing:
Wheels drive the diff.
Diff drives the propshaft.
Propshaft drives secondairy shaft.
Secondairy shaft drives countershaft AND oil pump (see my earlier post)
Primairy shaft does not turn.
(I forgot reverse gear.. sorry.. )
All black gears are fixed on their shafts.
All white gears are able to freewheel if not engaged.
1st and 2nd gearsets do not turn.
3-4-5-6 gearsets do turn.
I'm not sure about reverse, I think its taken from 1 gear from the primairy shaft.

If you drive to fast while towing you can see the freeweeling gears (3-4-5-6) on the primairy shaft can spin too fast on that primairy shaft.
That may (will probably) cause damage to those needle bearings, syngro hubs and sleeves.
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Old Apr 18, 2007 | 01:06 PM
  #35  
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spitfireS = hows2kswork

thanks man.

i apologize for my lack of imagination...i am useless without diagrams.
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Old Apr 18, 2007 | 06:40 PM
  #36  
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Flatbed it.
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Old Apr 18, 2007 | 08:05 PM
  #37  
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Originally Posted by jyeung528,Apr 18 2007, 01:06 PM
spitfireS = hows2kswork
He has a better Avatar too.
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Old Apr 18, 2007 | 08:06 PM
  #38  
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I'm still confused (a somewhat normal state).

Looking in the Honda Service Manual, the transmission oil pump gear is driven directly by the secondary drive gear which is driven by the secondary shaft assembly. The secondary shaft assembly turns whenever the drive shaft turns as they are bolted togeather via the companion flange.

Oil should be pumped in the transmission whenever the rear wheels turn.

Am I missing something?




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Old Apr 18, 2007 | 08:16 PM
  #39  
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Even if the oil pump is driven by the rear wheels, could the fact that the car is at a severe angle cause a problem for the oil circulating?
Probably a dumb question...
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Old Apr 18, 2007 | 08:30 PM
  #40  
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Not a dumb question if your tranny ends up toasted...
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