Clutch problem

[Srssrs]

Sometimes it could be the teeth of the clutch do not sit into each other slots properly. that causes the gear engagement to a bit more tougher.

 

in most case, pumping the clutch pedal 2 to 3 times should solve the problem.

[Yeobh]

Automotive clutch plates don't have teeth !!All the forward gears in a manual transmission box are always in engage fulltime but not lock to drive, they are lock to drive by sycromesh units.

[Zrun]

I have problems with my shifter "sticking" to a gear. If I shift from 2 to 3 during high rev, it seems that the transmission shifts into neutral from 2 a split second later, and it is also harder to get into 3rd. There's a blockage, but not considered grinding.

 

I find that fresh engine oil makes it shift better, which sounds illogical. Maybe engine oil also lub some part behind the flywheel? Or the engine is so much smoother, and makes shifting feels better.

 

But many suggest changing to Motul transmission oil. I am using Redline MT-90, it improves the shift feel, but not perfect. A friend changed from Redline to Motul and he says Motul is way better.

[Elfenstar]

zrun, are you saying that it pops out of gear??

 

Sometimes that happens if you don't get the gear engaged properly. Its especailly noticeable on straight cut gears, and on slighly worn syncros especially when down-shifting. This can also happen if either the engine or gearbox mounts are busted.

 

Fresh engine oil does help (the same way engine dampers help) if the engine moves/shakes less, it's easier to pop the gear in which would explain why your gearshifts seem better.

 

Forget the Mt-90, go for the redline lightweight shockproof... so much better, esp if you're having gearbox problems... just that gearshifts may be a little notchy when cold.

 

Edit: If you were downshifting what you can do is move from higher to neutral, blip the throttle and put in the lower gear. Works a treat all the time and increases the life of your syncros if there was no problem with your g/box (its basically done to allow the syncro for the lower gear to spin at a speed closer to that of the engine) .

Edited October 20, 2005 by Elfenstar

[En0203]

Edit: If you were downshifting what you can do is move from higher to neutral, blip the throttle and put in the lower gear. Works a treat all the time and increases the life of your syncros if there was no problem with your g/box (its basically done to allow the syncro for the lower gear to spin at a speed closer to that of the engine) .

 

that's the double clutching technique, it preserves the synchros nicely

[Fortress]

Oh..learn something today, the name "double clutching", have been doing this for years but never knew it has a name.

[En0203]

have been doing this for years....

 

yea, this technique is widely used in the old times where synchros are not available on the gear, so i'll assume u are old enough to have practise this technique for years

 

for me i am not that old but i uses an old car that's why i know the downshifting just wont' work without this technique

Edited October 20, 2005 by En0203

[Fortress]

I am quite young actually, it is a simple technic that you will realised that the car behaves better that way.

[En0203]

not really, the modern car doesn't need this technique anymore with the introduction of the synchromesh

 

old car, however, it's a must

Edited October 20, 2005 by En0203

[Fortress]

Yup. But you got a more reliable car.

[En0203]

a more reliable car

 

no lar, synchromesh is tougher than u think

 

unless u like to downshift to near redline rpm then different story

[Atlantis_boi]

If you were downshifting what you can do is move from higher to neutral, blip the throttle and put in the lower gear. Works a treat all the time and increases the life of your syncros if there was no problem with your g/box (its basically done to allow the syncro for the lower gear to spin at a speed closer to that of the engine)

 

Pardon me 4 my ignorance, the above sounds like Heel-Toe techinque to me, but it's a double clutching techinque as mentioned by some of the bros here. Wat's the difference between the two?

 

Btw, wat is syncro? My car is AT thus I know nothing much abt MT gearboxes

[Fortress]

I meant the Beetle is more reliable.

[En0203]

I meant the Beetle is more reliable

 

er.. oklar, i think most old cars are overdesigned and reliable, but not new cars

[Fortress]

Yup. Brought up what was bugging you already?

[En0203]

Wat's the difference between the two?

 

1) heel-toe:

brake--clutch in--blip throttle to match the rpm--downshift--release clutch

 

2) heel-toe with double clutching:

brake--clutch in--engage neutral gear--release clutch--blip throttle to match the rpm--clutch in again--downshift--release clutch

 

NOTE:

1)heel toe refers to using toe to brake and heel to blip throttle

 

2)double clutching refers to clutch in 2 times and going through neutral before downshifting

 

they are two different thing actually but normally double clutching is performed best when coupled with heel-toe technique on downshifting

 

 

The Difference:

1)with only heel toe, u are only matching the engine speed with the gear speed while dumping clutch and ur synchromesh will have to do the matching of speed between gear and drive shaft thus leading to the wear and tear of the synchromesh

 

2)with heel toe + double clutching, u will match the speed of the engine, gear and drive shaft in the whole process and thus preserving the wear and tear on the synchromesh

 

 

synchromesh: like the name itself it's a device meant to synchronise the rotation speed between the gear and drive shaft

 

hope i didn't confuse u

[En0203]

Brought up what was bugging you already?

 

not yet

[Fortress]

Don't wait too long, let me know i might be able to help