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thought i'd ask another question...
is there anything wrong with skipping a gear when changing? eg. like from 3rd to 5th? or from 2nd to 4th....or even from 2nd to 5th?
like sometimes i accelerate hard in 2nd up to like 70-80kms, and then i just shift into 5th and continue to cruise at a low rev...?
no i cant see anything wrong with doing that...
It wears out your synchros. Your 2nd gear spins roughly at 5000rpm at 70km/h. You put it into 5th, which at 70km/h is 2500rpm. Your synchros will bear the brunt of slowing down the input shaft from 5000 to 2500rpm and wear out quicker.Quote:
Originally Posted by corn_flakes
You can stop it from wearing and still shift from 2nd to 5th. Just press the clutch pedal, shift from 2nd to neutral, release the clutch when in neutral and then press it in again and shift to 5th. The act of releasing the clutch in neutral will slow down the input shaft so that it is closer to 2500rpm and can help reduce wear on the synchros.
hey thought i include something i learnt manual from before i got my ek4.
www.standardshift.com
nice site with a forum and videos to teach you :D
gl with your manual driving boys.
ps. quick question, how much are thrust bearing and synchros to replace?
Quote:
Originally Posted by aaronng
oooh interesting...coz i sometimes feel buggered to change gears like 70km/hr in 2nd gear, then change to 3rd, then 4th, AND finally 5th....coz i didn't see a use for it if i was going to just be travelling at the same speed i was at the end of 2nd gear....
if u don't mind me asking aaron, how do u know so much about automotive mechanics?? i'm such a n00b when it comes to the workings of engines...although these forums are teaching me ALOT! :D
I Use all those techniques uve talked bout corn flakes, depends on the driving situation, sumtimes i get lazy though with the clutch and end up crunching gears... worst sound ever, its all about timing in manuals
Very interesting information - I did not realise that.Quote:
Originally Posted by aaronng
What sort of life shortening are we talking about? Ie how much wear is taking place to the input shaft?
Releasing the clutch in netural will give the input shaft the speed of the engine.
Instead of wasting your time letting the clutch out and press again, just WAIT a little bit while your on the clutch. The input shaft will slow down on it's own, you don't need to help it.
On another note, the clutch is a CONSUMABLE. The throwout bearing is CHEAP and EASY to replace. It's far more important to have correct driving style than bad manner to save a buck or two.
Why don't you stop braking so you don't use brake pads?
Don't press the clutch in a corner, stay in gear and modulate speed with throttle. And don't change gears in a corner either (unless its a slow corner from a take off for example).
here's another annoyance i found...
situation:
approaching a t-section (intersection) - you are the one giving way, you want to turn right...
now i don't come to a complete stop when i approach these intersections, so sometimes i continue to roll and just turn right staying in 2nd gear that i downshifted to when i approached the intersection...
what i find is that i get a bit of engine shudder in 2nd gear!
of course, i would have liked to be in first gear, but could not put it into first whilst still rolling that little bit as i'm about to make the turn...i would have crunched the gears if i pushed it into 1st...
so....2nd gear too weak to make the turn - engine shudder, so i ride the clutch a bit to avoid this
1st, can't get into, it will crunch...
so, does anyone have a solution? i don't want to come to a complete stop, nor do i want to ride the clutch or have any engine shudder...
also, how does engine shudder feck up ur car? what does it wear out y0?
I just put it into neutral, blip the throttle and clutch in and push into 1st. This is double clutching. Using this, I can put it into 1st even at 40km/h if I wanted to (I have tried. LOL).Quote:
Originally Posted by corn_flakes
no you wouldnt have crunched the gears if you put it into first. unless of course you didnt have the clutch all the way inQuote:
Originally Posted by corn_flakes
what you will experience is what feels like a reluctance of the gearbox to go into 1st because the syncros are working too hard ie the input shaft is spinning too quickly for the speed of the gear you are trying to select (1st)
the GEAR is not too weak, the ENGINE is not producing enough torque at this rpm to move the car.Quote:
Originally Posted by corn_flakes
if your engine is shuddering, you shouldnt be in that gear.
you would have to be below 1500rpm to get serious shudder (thats just an approximation)
riding the clutch in this situation is not an effective way to solve the problem
there are two possible solutions to your problem:
1) come to a complete stop
2) double clutch into first. ie from second gear, depress the clutch, shift to neutral, release the clutch, depress the throttle, depress the clutch, shift into first.
its not as difficult or complex as it may appear
for situation like this... i rev match into 1st gear. for those that has been in car my when i do that will know that there has neva been any single crunch on my downshift. and i think its alot better in emergency situation or b4 taking turns... as u want to minimise the period of time car not full in gear. rev match is the best option