Team-BHP > Technical Stuff


Reply
  Search this Thread
5,035 views
Old 10th October 2008, 21:14   #1
BHPian
 
Hashim's Avatar
 
Join Date: Oct 2008
Location: Aligarh
Posts: 449
Thanked: 49 Times
How to tune M1000 carb?

I have a Maruti 1000 and since few months I don't see water coming out of exhaust. Earlier lots of water used to come from it and mechanic said it means car will give good mileage. Does the carb need adjustment? Can you guys tell me how it’s done? What I tried till now is adjusting screws in carb (one metal screw and other with plastic cap) but no success.
Hashim is offline  
Old 11th October 2008, 02:17   #2
BHPian
 
Join Date: Aug 2004
Location: Goa
Posts: 364
Thanked: 89 Times

go through this A PURRFECT M800 - DOES IT EXIST?! a pretty detailed guide. This should apply to a m1000 too, as they have almost the same carb.Timing and idle rpm might be different - confirm by calling up a MASS or some friendly neighbourhood mechanic

You might want to borrow or buy a dwell tachometer and timing light to get things really correct.
techn0l0gist is offline  
Old 11th October 2008, 18:36   #3
BHPian
 
Hashim's Avatar
 
Join Date: Oct 2008
Location: Aligarh
Posts: 449
Thanked: 49 Times



I didn't found timing light and tachometer from anywhere so went to my trusted mechanic for getting the carb adjusted. He removed the carb, disassembled everything cleaned with petrol and adjusted RPM and timing. Still no water from exhaust. Does it take long for water to travel from catalytic converter and reach muffler?
Hashim is offline  
Old 11th October 2008, 19:06   #4
Team-BHP Support
 
Jaggu's Avatar
 
Join Date: May 2004
Location: Bangalore
Posts: 20,207
Thanked: 15,848 Times

Water vapor condenses at tail pipe end and doesnt travel from cat to tail pipe, on a cold engine idle the car for 2-3 minutes to see this, also i see that you are running on lpg and might not happen since the exhaust is hotter. Also tuning/mixture adjustment has to be perfect with lpg line, and atmosphere should not be very dry or else it will be just a trace of water.

Last edited by Jaggu : 11th October 2008 at 19:09.
Jaggu is offline  
Old 11th October 2008, 19:41   #5
BHPian
 
Hashim's Avatar
 
Join Date: Oct 2008
Location: Aligarh
Posts: 449
Thanked: 49 Times

Ya I have the LPG kit installed but when I take to mechanic I run on Petrol and all adjustment was done in petrol mode only. Actually my mechanic hates LPG :P
Hashim is offline  
Old 11th October 2008, 21:09   #6
Team-BHP Support
 
Jaggu's Avatar
 
Join Date: May 2004
Location: Bangalore
Posts: 20,207
Thanked: 15,848 Times

So start in petrol and idle for few mins in morning watching the tail pipe and see if water condenses.
Jaggu is offline  
Old 11th October 2008, 21:40   #7
Senior - BHPian
 
Join Date: Sep 2006
Location: zxc
Posts: 3,393
Thanked: 726 Times

Quote:
Originally Posted by Hashim View Post
Ya I have the LPG kit installed but when I take to mechanic I run on Petrol and all adjustment was done in petrol mode only. Actually my mechanic hates LPG :P
It doesn't matter. The rpm is just slightly kept high in LPG.
SirAlec is offline  
Old 12th October 2008, 21:02   #8
BHPian
 
Hashim's Avatar
 
Join Date: Oct 2008
Location: Aligarh
Posts: 449
Thanked: 49 Times

Problem solved ! I saw water in exhaust in evening when I returned home. I was so happy that started the car, rev it just to see more water dropping from it
Hashim is offline  
Reply

Most Viewed
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Copyright ©2000 - 2024, Team-BHP.com
Proudly powered by E2E Networks