Cultus Problem on petrol

Tags: #<Tag:0x00000009107350>

argtr65 (argtr65) 2014-04-10 02:44:13 +0500 #9

Is there any thing installed on air intake assembly to block air ?if yes then remove it and reset the air fuel mixture.

mariaawan (mariaawan) 2014-04-11 08:20:06 +0500 #10

air is blocked.if i remove that, pick on cng reduces but on petrol problem persists.
How to reset air fuel mixture??I personally think if it was mixture problem then black smoke would have never gone away.In my case it vanishes after 2-3 min.

mariaawan (mariaawan) 2014-05-21 13:53:53 +0500 #11

problem still there

riders7 (riders7) 2014-05-21 14:34:38 +0500 #12

cng par chala lo

omarabdullah022 (omarabdullah022) 2014-05-21 15:08:33 +0500 #13

The auto-choke might not be working.

margallar (margallar) 2014-05-21 15:48:27 +0500 #14

I think something is up with the valves, carburetor should be okay

israrahmedd (israrahmedd) 2014-06-02 14:42:21 +0500 #15

have your problem solved am also facing smoke issue when start in morning on petrol

mariaawan (mariaawan) 2014-06-04 07:56:46 +0500 #16

no one is giving guarantee of work other than the 3S dealers who want to semi overhaul engine like headgasket, rings tappets, head tooling etc. So for now driving mostly on cng and convert to petrol only when it is warm and before turning off switching back to cng

engr.naveed (engr.naveed) 2014-09-07 04:35:57 +0500 #17

A.A. Friends i m facing exactly the same problem..rather on cng also rpm is at 800 when cold and after getting warmer stays at 1000.
No shaky rpm at cold start on cng while on petrol engine turns off if i leave foot from accelerator for 2 mins till it gets warmer.
I have got carburator serviced and butterfly was also repaired.What could be the reason. plz suggest some good workshop for this in wah/taxila/rwp/isbd.

engr.naveed (engr.naveed) 2014-09-08 15:18:29 +0500 #18

yes it is not working...is it due to this or any other issue can cause this??

revengez (revengez) 2014-09-08 22:23:29 +0500 #19

Since no smoke and any other problem on CNG - the reason is most probably excessive fuel / petrol.

engr.naveed (engr.naveed) 2014-09-10 12:53:10 +0500 #20

so what could be the solution. @xulfiqar bhai plz help

margallar (margallar) 2014-09-10 13:09:07 +0500 #21

You should get a compression test, when the car is very cold, like in the morning

revengez (revengez) 2014-09-10 17:08:35 +0500 #22

there could be many reason - first identify the problem.

Wrong spark plugs / or gap not set properly
faulty distributor or dirty point.

Check if car is manually advanced for CNG.

engr.naveed (engr.naveed) 2014-09-11 09:01:18 +0500 #23

brother i will do that on this weekend..but one problem is there that the car behaves normally after 2 min and 3s shop is about 8 km away.In this time car gets warmer and i will have to wait for atleast 2 hours so that engine may become cold.....

engr.naveed (engr.naveed) 2014-09-11 09:12:44 +0500 #24

Engine was tuned a month ago.mechanic cleaned spark plugs.....Regarding timing setting, he rotated distributer clockwise and stopped at almost 10% less than the fully clockwise turned position.

revengez (revengez) 2014-09-11 09:31:50 +0500 #25

What was the condition of spark plugs? did he inspect or he just cleaned and refit.
Also distributor adjusted on CNG?

engr.naveed (engr.naveed) 2014-09-11 09:41:46 +0500 #26

spark plugs just cleaned and refit as i replaced them 3- 4 months before (approx 3500-4000km)
yes distributor adjusted on cng..and no problem at all on cng except rpm value of 800 at cold startup and 1000 when warm

hash737 2014-09-11 10:21:35 +0500 #27

Sent from a Nuclear Device.

margallar (margallar) 2014-09-11 10:29:38 +0500 #28

First find a mechanic with the tool, the tool itself is very small and portable, ask the mechanic to come to your home.