The Original i30 Owners Club

GOT PROBLEMS OR ISSUES? => GENERAL => Topic started by: Bubbacpt on June 02, 2016, 12:43:50

Title: What is stick slip?
Post by: Bubbacpt on June 02, 2016, 12:43:50

I have an issue with my I30 1.6 crdi when I move off in first gear or reverse I get a very slight metallic sound from the clutch at biting point. The clutch and gears works perfectly normal. I have called another Hyundai dealer and they have told me they know of an issue called stick slip and sounds exactly like I described to him. What is stick slip in more detail please. He says it can come and go and I can get rid of it by letting the clutch slip slightly to clean it?

Title: Re: What is stick slip?
Post by: Dazzler on June 02, 2016, 13:06:11

I have been involved with this site since its inception (over 8 years ago) and never heard that term mentioned. I just searched and your reference is the only one!

Hopefully somebody knows the term! 

Title: Re: What is stick slip?
Post by: Bubbacpt on June 02, 2016, 13:13:07

thanks Dazzler

Title: Re: What is stick slip?
Post by: Phil №❶ on June 02, 2016, 13:24:48

Never heard of it but it sounds like there is some sticky material on the mating surfaces of the clutch, which can be eroded. If it was my car, I would give the engine some revs and start from 2nd gear a couple of times to increase clutch temperature.

Note, THIS IS MY PERSONAL ADVICE, NOT ADVICE FROM THE I30 OWNERS CLUB OFFICIALLY.

Title: Re: What is stick slip?
Post by: Just Rick on June 02, 2016, 13:37:43

The stick-slip phenomenon, also known as the slip-stick phenomenon or simply stick-slip, is the spontaneous jerking motion that can occur while two objects are sliding over each other.

Title: Re: What is stick slip?
Post by: Bubbacpt on June 02, 2016, 13:40:48

Thanks guys, the issue now is do I take the car to my dealer who I've no doubt will tell me my clutch needs replacing at my expense, even though it's not 2 years old yet due to wear & tear but was ex hire car or if I continue to run with it will it cause any more damage?

Title: Re: What is stick slip?
Post by: Phil №❶ on June 02, 2016, 13:42:16

 :Dunno:

Over to you Rick :exclaim: :mrgreen:

Title: Re: What is stick slip?
Post by: Just Rick on June 02, 2016, 13:58:28

very hard to diagnose over a forum conversation,two scenario's you say it is an ex hire hire cars live a hard life,so the slight metallic sound on engaging could mean the clutch plate is down to it's rivets,if this be the case depends on how much you drive it,the clutch will start slipping and then obviously eventually stop working,second scenario is the second dealer is right and being a hire car the clutch plate could be glazed and him suggesting you slipping the clutch would clean off the glazing of both the clutch and pressure plate personally if it is not slipping and is working OK I'd just keep driving it,be nice if modern cars had what most older cars had and inspection plate on the clutch housing,you'd be able to make a call on what to do without pulling the box out

Title: Re: What is stick slip?
Post by: Dazzler on June 02, 2016, 23:50:20

Just a thought, but I wonder if replacing the transmission fluid or adding an additive to it would reduce the noise/effect?

Title: Re: What is stick slip?
Post by: John B on June 03, 2016, 04:25:52

Dazz, I think if it is a manual g/box there should be no oil present in the clutch housing where the clutch disc plate is situated only where the gear box housing is. If the noise is in the gear train what you suggest may help.

Title: Re: What is stick slip?
Post by: Dazzler on June 03, 2016, 05:29:07

I thought it might be related to the gear change some how...

Title: Re: What is stick slip?
Post by: The Gonz on June 03, 2016, 05:40:07

Clutch and gears
Clutch and gears
Chalk and cheese
Like eyes and ears
 :rofl:

Title: Re: What is stick slip?
Post by: Doggie 1 on June 03, 2016, 08:06:08

Quote from: Just Rick on June 02, 2016, 13:37:43

The stick-slip phenomenon, also known as the slip-stick phenomenon or simply stick-slip, is the spontaneous jerking motion that can occur while two objects are sliding over each other.

I love it when you talk dirty, Rick.   ;)   :lol:

Title: Re: What is stick slip?
Post by: Phil №❶ on June 03, 2016, 10:04:29

Quote from: The Gonz on June 03, 2016, 05:40:07

Clutch and gears
Clutch and gears
Chalk and cheese
Like eyes and ears
 :rofl:

:snigger:

Title: Re: What is stick slip?
Post by: The Gonz on June 03, 2016, 10:09:47

Found the answer ...

:link: pogo stick FACE SMASH - YouTube (http://youtu.be/k0MNLWS4RGo)

Title: Re: What is stick slip?
Post by: Dazzler on June 03, 2016, 11:18:06

Nasty! :ouch: