Lost 5th gear in 20k old gearbox. Anyone else had this?
08-25-2003, 08:14 AM
#12
Registered User
[QUOTE]Originally posted by RT
[B]
Rev matching deals with the difference in speed between the clutch and the flywheel (not pertinent here)........ double clutching deals with syncing synchros (which you could use for upshifting
but is generally used exclusively for downshifting).
[B]
Rev matching deals with the difference in speed between the clutch and the flywheel (not pertinent here)........ double clutching deals with syncing synchros (which you could use for upshifting
but is generally used exclusively for downshifting).
08-25-2003, 08:17 AM
#13
Registered User
[QUOTE]Originally posted by CRX7
[B]Generally, it seems as though the transmission does not shift as well when trying to skip gears, so I just don't. It doesn't seem like a good idea.
[B]Generally, it seems as though the transmission does not shift as well when trying to skip gears, so I just don't. It doesn't seem like a good idea.
08-25-2003, 10:32 AM
#14
Let me right now invite Woodwork to chime in on this thread and hopefully give some definitive insight. In the meantime, I'll share what I've learned/been told.
5th and 6th gears share a engagement mechanism (I think due to their proximity to Reverse, which has the lockout) involving a metal sleeve that must pass over/by the teeth of the gear you're *not* selecting. That is, to get to 6th, the sleeve must get past 5th, and vice-versa. I admit I'm sketchy on the actual details. However, the net effect is that if you grind one of the gears, say 5th, sufficiently badly, then you may no longer be able to engage the other one. In my case, for example, I missed the 2-3 shift a few times and ground 5th gear, eventually causing me to lose 6th. Similarly, Crafty, who ground 6th, has now lost 5th.
Depending on the situation, Reverse, 1st, 2nd, and even 3rd gears (or just their synchros) may also be damaged, again due to the relative location of the gears and synchros in the box.
To avoid this in the future:
- Don't miss shifts!
- Allow a little more time in neutral (between gears) when shifting, giving the synchros more time to work
- Use a good transmission fluid. The Honda stuff is a good all-round fluid, and though it's not the smoothest under any particular condition, it's very consistent. GM/Pennzoil Synchromesh gives buttery-smooth shifts when cold and warm, but when pushed (at the track or on extremely hot days) can break down completely. It also "goes away" after just a few thousand miles. I'm now using Redline MT-90, and based on a few days' street driving and a couple days at the track in 100F+ heat, so far it's performing superbly. No long-term impressions yet, though.
Hope this helps. Unfortunately, once you've lost the gear, there's nothing to be done but a major tranny repair, and as we know, Honda warranty coverage varies widely. There are many suggestions for dealing with Honda and/or your dealer on the repair costs (offering to split it, asking for a one-time goodwill repair, or just taking them to court) but that's a subject that's been dealt with in many many other threads.
Best of luck,
John
5th and 6th gears share a engagement mechanism (I think due to their proximity to Reverse, which has the lockout) involving a metal sleeve that must pass over/by the teeth of the gear you're *not* selecting. That is, to get to 6th, the sleeve must get past 5th, and vice-versa. I admit I'm sketchy on the actual details. However, the net effect is that if you grind one of the gears, say 5th, sufficiently badly, then you may no longer be able to engage the other one. In my case, for example, I missed the 2-3 shift a few times and ground 5th gear, eventually causing me to lose 6th. Similarly, Crafty, who ground 6th, has now lost 5th.
Depending on the situation, Reverse, 1st, 2nd, and even 3rd gears (or just their synchros) may also be damaged, again due to the relative location of the gears and synchros in the box.
To avoid this in the future:
- Don't miss shifts!
- Allow a little more time in neutral (between gears) when shifting, giving the synchros more time to work
- Use a good transmission fluid. The Honda stuff is a good all-round fluid, and though it's not the smoothest under any particular condition, it's very consistent. GM/Pennzoil Synchromesh gives buttery-smooth shifts when cold and warm, but when pushed (at the track or on extremely hot days) can break down completely. It also "goes away" after just a few thousand miles. I'm now using Redline MT-90, and based on a few days' street driving and a couple days at the track in 100F+ heat, so far it's performing superbly. No long-term impressions yet, though.
Hope this helps. Unfortunately, once you've lost the gear, there's nothing to be done but a major tranny repair, and as we know, Honda warranty coverage varies widely. There are many suggestions for dealing with Honda and/or your dealer on the repair costs (offering to split it, asking for a one-time goodwill repair, or just taking them to court) but that's a subject that's been dealt with in many many other threads.
Best of luck,
John
08-27-2003, 11:47 AM
#17
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I skip them cuz I'll be accelerating quickly in 3rd and 4th then realize I'm speeding and need to slow down and put it in a cruising gear.
Putting it into 5th then 6th just feels natural to me, I like going through the gates.
Putting it into 5th then 6th just feels natural to me, I like going through the gates.
09-02-2003, 12:21 AM
#18
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Does every manufacturer recommend not skipping gears when changing or is it just because of the design of the S2K gearbox?
I've driven manuals for ages and no-one has ever said not to skip gears as it does any damage.
The gearbox in mine has been replaced now but I'm discussing with Honda UK whether the problem was due to a manufacturing/design issue or whether I have caused the problem. They say they don't have a list of this kind of fault in S2Ks but my old gearbox was just going to be scrapped without investigating what caused its problem which is quite surprizing.
As other drivers seem to have suffered exactly the same kind of problem, sixth grinding and then loosing fifth, I tend to think it's a gearbox problem.
Either way would anyone expect a gearbox on a Honda to just last 20k?
I've driven manuals for ages and no-one has ever said not to skip gears as it does any damage.
The gearbox in mine has been replaced now but I'm discussing with Honda UK whether the problem was due to a manufacturing/design issue or whether I have caused the problem. They say they don't have a list of this kind of fault in S2Ks but my old gearbox was just going to be scrapped without investigating what caused its problem which is quite surprizing.
As other drivers seem to have suffered exactly the same kind of problem, sixth grinding and then loosing fifth, I tend to think it's a gearbox problem.
Either way would anyone expect a gearbox on a Honda to just last 20k?
09-02-2003, 08:03 AM
#19
Registered User
Originally posted by iceple
y would u skip a gears?Go threw all your gears..stop being lazy or sale your S and get auto.
y would u skip a gears?Go threw all your gears..stop being lazy or sale your S and get auto.
besides if i "threw" all my gears how would i shift??
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