I've heard the very same thing. It's one of the reasons I never leave my hand on the shifter.
That might be the case when the shifter is directly connected to the gearbox, but how can it be a problem with the 3 and its shift-by-wire system?BHOUST528 said:Well i dont expect you to believe me im just letting you know what i know and have seen from experience i was a Diesel tech for 2 years...and an have been to school for auto and diesel technology...What leaving your hand on the shifter does is when in gear cruising down the road at highway speeds 55-70mph this puts a slight amount of pressure on the sliding clutchs and syncro's causing them to wear out! Like i said this may not be your guys issue but to an 18 spd tranny it is....But a tranny is a tranny no matter how many gears you have catch my drift....But with your vehicle being this new i highly doubt its from resting your arm/hand cuz these trucks that we service have more the 500,000mi on them...
major error said:That might be the case when the shifter is directly connected to the gearbox, but how can it be a problem with the 3 and its shift-by-wire system?
All that really has a chance of wearing out is the ball joint and bushings at the end of the shifting rod...
Nope. Like I said....cables do the shifting.BHOUST528 said:Im not that familiar with the car tranny so i dont know but the shifter does go into the tranny right?
major error said:Nope. Like I said....cables do the shifting.
trans: http://www.mazdas247.com/forum/showthread.php?t=123661188
shifter: http://www.mazdas247.com/forum/attachment.php?attachmentid=37055
My understanding of transmissions is pretty slim, but I'd guess that it's whatever bits that lock the gear to the output shaft that went bad. Been a long time since I've seen a tranny opened up.
Warranty FTW!
It's a bad habit. It does cause a problem with some transmissions.Olestra said:Waa? Leaving your hand on the shifter shifter causing it to wear out. I dont' buy that unless you're pulling on it towards the neutral position while you drive...
FWIW, I tend to think that the definition "hard" is rather loose and most people will never worry about matching revs.bustanut said:So answer me this, is it hard on the syncros to be shifted into second around a corner at about a speed of about 15 which is around the 2k-2.3k rpm range if i didnt rpm match the engine before letting the clutch out?
Yup. Double-clutch on downshifts.bustanut said:So your saying to make it easiest on the synchros you have to double clutch
You can, but the synchros have to do more work, so technically speaking they will sustain more wear.bustanut said:you cant just push in the clutch, downshift from 3rd-2nd and rev the engine to match the rpms before letting the clutch out?
I think it's just about the extent to which you are willing to go in order to treat your car well! Like I said, some transmissions are very robust and will do the job reliably regardless of how you treat them. The Protege transmission is crap, so I want to make it last the longest.bustanut said:To be honest i dont even use that procedure but very rarely have downshifts into 2nd that exede 4k rpms which is 3k more rpms than the engine is at before letting the clutch out. How bad is this?
Here you go! These videos are on Google video right now. They were once on Standardshift.com, which is where I learned about them:bustanut said:And yes i would appreciate more information about rev-matching and how to use the tranny with the least abuse if you have any links or info
Dim said:FWIW, I tend to think that the definition "hard" is rather loose and most people will never worry about matching revs.
A lot of times I go by feel. The easier it is to put the shifter in gear, the better. And 99% of the time in my car improvement can be seen when revs are matched.
As far as dowshifting into 2nd like you described, it may not be the end of the world to not match revs, however, I most certainly would. It really doesn't take much. Make sure to have your foot off the clutch pedal (clutch out) and just feather the throttle a bit, then put it into gear and let the clutch out.
I'm not sure how familiar you are with this technique (double-clutching). I could try to link you to some videos if you are interested.