Go Back   Team-BHP > Under the Hood > Technical Stuff


Reply
 
Thread Tools Search this Thread
Old 6th July 2017, 18:22   #331
Senior - BHPian
 
Hatari's Avatar
 
Join Date: Feb 2004
Location: Calcutta
Posts: 1,568
Thanked: 364 Times
Default Re: About clutch wear & replacement

Quote:
Originally Posted by sagarpadaki View Post
If i understand correctly , RPM increases from 4k to 5k but the speed does not increase proportionately? Or is it that the speed and rpm increase from 4k to 5k without your accelerator input?

If it is the former then mostly it is a clutch issue.

You can try a hard ECU reset. Remove a battery terminal and re-connect after 30 mins.
RPM increases disproportionately to speed (which also increases)
Hatari is offline   Reply With Quote
Old 6th July 2017, 19:48   #332
Senior - BHPian
 
Hatari's Avatar
 
Join Date: Feb 2004
Location: Calcutta
Posts: 1,568
Thanked: 364 Times
Default

Finally it doesn't happen if I floor it at 3k RPM
Hatari is offline   Reply With Quote
Old 31st July 2017, 09:17   #333
BHPian
 
centaur's Avatar
 
Join Date: May 2009
Location: --
Posts: 627
Thanked: 657 Times
Default Re: RPM Issue with IGen i20 at 3k rpm in top gear

Quote:
Originally Posted by centaur View Post
I have a 2012 i20 sportz petrol which has around 45k kms on the odo. Regularly serviced and no issues so far whatsoever.

Had been on a out station trip this Saturday and faced a really wierd issue. I was doing about 80-100 kmph with the RPM around 3k. At times when I tried to increase the speed above 100 in the 5th gear, the engine would rev and the RPM would keep climbing without any increase in speed till I let the foot of the A pedal. This happened a couple of times before me having to switch to lower gears because of the traffic. For once I faced this problem in the 4th gear as well and the problem disappeared as soon and suddenly as it had appeared. Also this happened only for a small part of the onward trip and the return leg was absolutely fine

The first thing which came to my mind was a worn out clutch but there were no symptoms of it (no soft pedal, not shifting issues, no grinding noise, no shuddering etc.). I even tried the 3rd gear test a day before the trip and it showed the clutch was in shape so far. The car was pulling absolutely fine in all gears and was easily even reaching 130-140 without any issue otherwise (this was done only for a second or 2 to recheck the issue and in places where the road was straight giving me visibility of at least 1-1.5 kms).
An update here. Got the 50k service done and mentioned about this issue to the SA. While getting the car back I asked him about this and he replied it was the O2 sensor and nothing else. He said the clutch is absolutely fine and they found error codes for O2 while doing the OBD scan. He mentioned that for now he has fixed the problem but if it reoccurs, I will have to change the O2 sensor.

I am still not sure if its true but I took the same trip again and there were no issues in any gears at any rpms with 4 people on board. The car pulled without a problem all through. So probably what he did mention was right. Just wanted to share it here as a possible cause (?)
centaur is online now   Reply With Quote
Old 31st July 2017, 09:46   #334
Senior - BHPian
 
audioholic's Avatar
 
Join Date: Jun 2012
Location: BengaLuru
Posts: 3,016
Thanked: 4,186 Times
Default Re: RPM Issue with IGen i20 at 3k rpm in top gear

Quote:
Originally Posted by centaur View Post
I am still not sure if its true but I took the same trip again and there were no issues in any gears at any rpms with 4 people on board. The car pulled without a problem all through. So probably what he did mention was right. Just wanted to share it here as a possible cause (?)
Was it raining when the first event happened? Or did you drive through waterlogging when the issue occurred? I am saying this since I experienced this in my SX4 after driving through a waterlogged road. Once I started accelerating after clearing the waterlogged stretch, I could sense that the car was slipping in third and fourth gear at high RPMS. This happened for a minute or two and later things were back to normal.

If everything was right and still you faced this problem then it is a very early sign of clutch getting weak. When the engine is around its peak torque zone but the car is under load, as in your case when the engine would have been at ~3k RPM but in fifth gear, which puts load on the engine. In such a condition, the clutch will have to bear the brunt and will slip if its weak. The engine would be eager to go further, but the vehicle weight, aerodynamics and similar factors would be pulling it back. Thats what happened in your case. But the clutch can be used for some time. Same is the case with my uncles i10 kappa2. The clutch slips at high RPMs but is totally fine at lower gears and lower speed.

Hence, keep an eye for this and if this issue turns up again or becomes more prominent consider changing the clutch assembly.
audioholic is offline   Reply With Quote
Old 31st July 2017, 09:57   #335
BHPian
 
centaur's Avatar
 
Join Date: May 2009
Location: --
Posts: 627
Thanked: 657 Times
Default Re: About clutch wear & replacement

Quote:
Originally Posted by audioholic View Post
Was it raining when the first event happened? Or did you drive through waterlogging when the issue occurred? I am saying this since I experienced this in my SX4 after driving through a waterlogged road. Once I started accelerating after clearing the waterlogged stretch, I could sense that the car was slipping in third and fourth gear at high RPMS. This happened for a minute or two and later things were back to normal.
No Water/raining as such. Infact it was peak summer. But yes, now that you bring it up, the washing center where I get my car washed, sometimes pressure wash under the hood. So if water can be a reason this is the only way it can be. Whenever I am around I always ask them not to use water under the hood for washing.

Quote:
Originally Posted by audioholic View Post
If everything was right and still you faced this problem then it is a very early sign of clutch getting weak.

Hence, keep an eye for this and if this issue turns up again or becomes more prominent consider changing the clutch assembly.
Yes this was my fear and asked the SA but he replied in negative. He said the clutch is in very good shape and there is no reason to change it.

Probably will have to change the clutch assembly like you mention, the next time I get the issue.

Last edited by centaur : 31st July 2017 at 10:01.
centaur is online now   Reply With Quote
Old 12th August 2017, 06:45   #336
BHPian
 
Join Date: Jan 2015
Location: Jalgaon
Posts: 228
Thanked: 138 Times
Default Re: About clutch wear & replacement

Quote:
Originally Posted by n.devdath View Post
Yes, you are. However, since you are buying spares from a dealer, it is best to get them installed there too.

If you can get a genuine clutch kit from the open market, take it to a good garage and get it fitted there.

Is the maker Exedy Corporation, a supplier of genuine parts? I fitted a clutch made by Exedy.

Though the power delivery and fuel economy (got an FE upwards of 16 on my recent Pune trip) has increased, may be due to improper fitting, the shuddering remains. The car shudders when I leave the clutch in first.
Swapnil4585 is offline   Reply With Quote
Old 12th August 2017, 10:16   #337
Senior - BHPian
 
n.devdath's Avatar
 
Join Date: Jun 2009
Location: Bangalore
Posts: 3,819
Thanked: 1,431 Times
Default Re: About clutch wear & replacement

Quote:
Originally Posted by Swapnil4585 View Post
Is the maker Exedy Corporation, a supplier of genuine parts? I fitted a clutch made by Exedy.
Exedy is amongst the largest manufacturers of clutches worldwide and as long as you got an original clutch and it was fitted properly, there should not be any issues.
n.devdath is online now   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Clutch usage in Manual transmission - Exercise to leg or wear and tear? Murugan Technical Stuff 26 13th December 2011 11:25
Swift clutch replacement - Suggestions needed ASAP! karthik247 Technical Stuff 40 31st October 2009 13:30
Swift premature clutch wear! canonball The Indian Car Scene 2 5th March 2009 13:58
CLUTCH troubleshooter and replacement DIY nitroxx DIY - Do it yourself 2 6th April 2007 12:49


All times are GMT +5.5. The time now is 14:12.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks