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


Reply
 
Thread Tools Search this Thread
Old 10th November 2008, 10:34   #1
BHPian
 
zacs's Avatar
 
Join Date: Jul 2008
Location: Bangalore
Posts: 70
Thanked: 39 Times
Angry Not going beyond 80kmph - Esteem 1999 Carb.

Hi, off late there is a problem with my 1999 carb esteem. Howmuch ever the throtle is given the car fails to pass 80kmph. There is an unusual sound from the exhaust may be due to some leakage. Can this be a problem?. If so should i go for a FFE instead of repairing or replacing it with a factory one. Otherwise what can be the possible factors. Thanks in advance.
zacs is offline   Reply With Quote
Old 10th November 2008, 11:55   #2
BHPian
 
Hashim's Avatar
 
Join Date: Oct 2008
Location: Aligarh
Posts: 443
Thanked: 32 Times
Default

Is the car starting normally or taking long? It looks like something is struck inside silencer. In worst case, your clutch plates would be worn out totally. Other possible reasons may be bad tuning.
Hashim is offline   Reply With Quote
Old 10th November 2008, 12:16   #3
Team-BHP Support
 
Jaggu's Avatar
 
Join Date: May 2004
Location: Bangalore
Posts: 17,752
Thanked: 7,475 Times
Default

How much has the car run? Start with a service and tune up.
Jaggu is offline   Reply With Quote
Old 10th November 2008, 12:25   #4
Senior - BHPian
 
esteem_lover's Avatar
 
Join Date: Jul 2006
Location: Madras/Py
Posts: 7,554
Thanked: 445 Times
Default

A little bit of history about the car should help here.
1. When was the last time you serviced the car ?
2. what's the odo reading ?
3. Is the clutch very hard ?
4. How is the initial pick up ?
esteem_lover is offline   Reply With Quote
Old 10th November 2008, 12:46   #5
BHPian
 
techn0l0gist's Avatar
 
Join Date: Aug 2004
Location: Ponda, Goa
Posts: 333
Thanked: 27 Times
Default

check your catalytic convertor, it might have been clogged or contaminated, you'd have to replace it(~3k) or get rid of it(not legal) .
techn0l0gist is offline   Reply With Quote
Old 10th November 2008, 14:40   #6
BHPian
 
zacs's Avatar
 
Join Date: Jul 2008
Location: Bangalore
Posts: 70
Thanked: 39 Times
Default

1. When was the last time you serviced the car ?
Three months back
2. what's the odo reading ?
Its 115000 KM
3. Is the clutch very hard ?
No. Its been changed five months back, the clutch plate and wire. Its soft smooth and perfect
4. How is the initial pick up ?
Initial pick up is good i would rather say very good and goes to 80 KMPH with much ease.
zacs is offline   Reply With Quote
Old 10th November 2008, 14:55   #7
Team-BHP Support
 
Jaggu's Avatar
 
Join Date: May 2004
Location: Bangalore
Posts: 17,752
Thanked: 7,475 Times
Default

Start with a complete tune up, including carb cleaning and tappet adjustments. Clean/replace air filter and petrol filter.

See how it performs, also might be a good idea to see if compression is ok once you do the above, to determine the health of the engine.

Hope there is no engine oil consumption with the engine.
Jaggu is offline   Reply With Quote
Old 10th November 2008, 15:14   #8
Senior - BHPian
 
planet_rocker's Avatar
 
Join Date: Sep 2006
Location: Bong-land
Posts: 2,320
Thanked: 366 Times
Default

does it lose power at high rpm in every gear?
planet_rocker is offline   Reply With Quote
Old 10th November 2008, 15:18   #9
Senior - BHPian
 
humyum's Avatar
 
Join Date: Feb 2006
Location: Leicester/Mumbai
Posts: 2,306
Thanked: 2,188 Times
Default

Seems like an improperly tuned airfuel ratio/not functioning secondary butterfly/timing not set right.
humyum is offline   Reply With Quote
Old 10th November 2008, 16:09   #10
BHPian
 
zacs's Avatar
 
Join Date: Jul 2008
Location: Bangalore
Posts: 70
Thanked: 39 Times
Default

does it lose power at high rpm in every gear?
I have not felt so far. It starts in first crank even in cold. The car runs really good till it reaches 80. After that its takes a long time to push it to 85 thatz it. It is not going beyond. What is the max speed that can be attained on carb esteem? Thanks for the suggestions.
zacs is offline   Reply With Quote
Old 10th November 2008, 17:05   #11
Senior - BHPian
 
esteem_lover's Avatar
 
Join Date: Jul 2006
Location: Madras/Py
Posts: 7,554
Thanked: 445 Times
Default

It could be the case of the secondary valve in the carb getting jammed or could be a problem directly related to your faulty exhaust, though i doubt the latter.
esteem_lover is offline   Reply With Quote
Old 10th November 2008, 17:41   #12
Team-BHP Support
 
Jaggu's Avatar
 
Join Date: May 2004
Location: Bangalore
Posts: 17,752
Thanked: 7,475 Times
Default

Secondary buttery fly circuit seems like a definite culprit along with the diaphragm pump in the carb. These should be sorted out in a regular carb strip/clean up/tune up job at any of the M.A.S.S
Jaggu is offline   Reply With Quote
Old 10th November 2008, 17:54   #13
BHPian
 
techn0l0gist's Avatar
 
Join Date: Aug 2004
Location: Ponda, Goa
Posts: 333
Thanked: 27 Times
Default

looks like everything points out to a stuck secondary butterfly - if you want to DIY, buy some 3M carb and choke cleaner, remove airfilter and spray it into the carburettor (instructions are given on the can). works most of the time for me. If that fails - then off you go for carb overhaul .

Amit
techn0l0gist is offline   Reply With Quote
Old 10th November 2008, 18:22   #14
Team-BHP Support
 
Jaggu's Avatar
 
Join Date: May 2004
Location: Bangalore
Posts: 17,752
Thanked: 7,475 Times
Default

1,15000 kms is good amount of running and i would strongly recommend carb stripping and servicing (if not done in the last 20k kms).
Jaggu is offline   Reply With Quote
Old 11th November 2008, 11:39   #15
BHPian
 
zacs's Avatar
 
Join Date: Jul 2008
Location: Bangalore
Posts: 70
Thanked: 39 Times
Smile

Thank you all for the support and suggestions. Going to MASS for the carb cleaning and works. will post the after effect.
zacs is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
AC Cut-off above 80kmph - City ZX Vtec rideon Technical Stuff 21 12th April 2014 12:03
Electra CDI - Not crossing 80kmph chethan.ram Motorbikes 12 7th September 2010 13:44
Engine Overhaul - Maruti 800 ( 1999 - Carb ) hitman1980 Technical Stuff 21 17th November 2009 14:27
Esteem fuel pump(mpfi) in esteem-carb tank techn0l0gist Technical Stuff 0 13th June 2009 22:03
What is better for driveability : 0-100kmph OR 20-80kmph? shantyrocks The Indian Car Scene 91 27th March 2009 20:41


All times are GMT +5.5. The time now is 19:30.

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