Downshifting

[Rhino172]

Ok so I've had my 172 for a while now and I've noticed this happen sometimes. Most of the time it's fine....

Basically, when downshifting sometimes I have to fight to get into gear (generally from 4th to 3rd or 3rd to 2nd), alomst as if the clutch isn't disengaging properly?

anything wrong you think or am I just crap at downshifting? lol

Going up through the gears, normally and when giving it beans, it's fine...

 

[nathanH]

do you blip the throttle on downshifts, or heel and toe?

makes the gear change smoother

 

[Ads_172]

I'd have thought that if the clutch is engaged that blipping only becomes relevant when you go to release the clutch, matching the revs.

1st is often difficult to get into on mine when I'm still rolling, but every other gear is fine for downshifting. Might be worth lifting the clutch when you're in neutral and then depressing and finding the gear you want.

 

[Rhino172]

do you blip the throttle on downshifts, or heel and toe?

makes the gear change smoother

Neither?!?! lol is that my problem? just change gear as if I was changing up a gear

I'd have thought that if the clutch is engaged that blipping only becomes relevant when you go to release the clutch, matching the revs.

1st is often difficult to get into on mine when I'm still rolling, but every other gear is fine for downshifting. Might be worth lifting the clutch when you're in neutral and then depressing and finding the gear you want.

maybe worth a go.

Just for clarification, this is not when I'm giving it beans, this is just normal road driving and using engine breaking to slow for corners, upcoming juctions, roundabouts etc...

 

[S22 JGS]

gear box is on its way out... mine is being rebuilt right now had the same thing. Probably find the bearings need replacing, and a few of teh gears themselves too

 

[Rhino172]

gear box is on its way out... mine is being rebuilt right now had the same thing. Probably find the bearings need replacing, and a few of teh gears themselves too

well thats just brightened up my day! cheers Steve! lol

 

[S22 JGS]

LOL have a chat with mark or mike at rentech about it see what they say

 

[Rhino172]

Might have to if it starts getting worse. Like I say it only happens sometimes, not like evreytime I change gear. Car has only done 31k so I'll be very supprised if it is on the way out...

 

[nathanH]

If you match the gearbox rpm to the flywheel rpm it makes the job of the syncros easier, and thus it will engage easier.

 

[Batman]

defo sounds like bearings or syncros to me id just buy a new box same price really

 

[Bloooor]

How do you guys 'blip the throttle' when its a sensor lol it takes about a second for mine to actually read that I've pressed down the pedal so it makes it annoyingly hard to down gear and set teh revs any tips.

 

[wlshyd182]

don't try heel n' toe on the open road unless you know what ur doing without practice so thats daft advice, i only know how to do it smoothly due to having raced cars for a few yrs, its not an easy thing to master by any stretch. clutch may just be wearing and biting higher up, coz you dont always give the left pedal full travel when going for lightning changes do you, none of us do as you dont have time, if you do you lose all the revs