Pauls4x4
10th May 2014, 07:55 PM
Hi all,
Was doing a bit of maintenance trying to fix one issue and seem to have created another.
The engine was having issues on LPG with splutering and missing until reaching about 2ooo rpm then it ran fine. Ddin't have the issue when running on petrol.
So today I changed the spark plugs and that seemed to get rid of that issue but now I have a problem with the engine not wanting to Idle when running on LPG.
Running on petrol is fine (and better now with the new spark plugs) and idles fine but as soon as you go onto LPG, it coughs and slows sown till it eventually stalls. If you restart, it takes about 5-10 seconds before it dies again. If you touch the accelerator, it runs fine and even accelerates fine but as soon as you stop at lights or take time changing gears....it stalls.
Prior to changing the spark plugs and just checking the timing, it was running on LPG fine, in fact it ran extremely well on LPG...about 550km per 90ltr tank.
Other things I did prior to this, rotating the distributor to check timing, adjusting the Idle screw (runs at about 850-860rpm) and went to adjust the fuel mix but noticed the mix screw seems to have been locked off (it may not be but not familiar with this carby and cannot finds answers anywhere). The screw has a 'U' shaped bar attached with the open end facing towards the rear of the car. The pipe coming from the carby to the left of the mix screw sits at the open end of the 'U' shaped bar and this seems to stop the mix screw from being turned. There is a slot for a thin screw driver but after trying, it didn't seem to change the mix screw....but i could be wrong.
Since this afternoon (after putting the bits and peices together) it won't idle on LPG and it is also back-firing when the engine is under back pressure (going down hill) and reving at about 1200-1300 rpm.
Don't know how to fix this as I'm not sure if the mix screw has moved or whether it even affects LPG....but it sure is annoying to fix one issue, only to have another one appear.
If you need a photo of the carby showing the Mix screw I'll add one.
Cheers
Paul
:1087:
Was doing a bit of maintenance trying to fix one issue and seem to have created another.
The engine was having issues on LPG with splutering and missing until reaching about 2ooo rpm then it ran fine. Ddin't have the issue when running on petrol.
So today I changed the spark plugs and that seemed to get rid of that issue but now I have a problem with the engine not wanting to Idle when running on LPG.
Running on petrol is fine (and better now with the new spark plugs) and idles fine but as soon as you go onto LPG, it coughs and slows sown till it eventually stalls. If you restart, it takes about 5-10 seconds before it dies again. If you touch the accelerator, it runs fine and even accelerates fine but as soon as you stop at lights or take time changing gears....it stalls.
Prior to changing the spark plugs and just checking the timing, it was running on LPG fine, in fact it ran extremely well on LPG...about 550km per 90ltr tank.
Other things I did prior to this, rotating the distributor to check timing, adjusting the Idle screw (runs at about 850-860rpm) and went to adjust the fuel mix but noticed the mix screw seems to have been locked off (it may not be but not familiar with this carby and cannot finds answers anywhere). The screw has a 'U' shaped bar attached with the open end facing towards the rear of the car. The pipe coming from the carby to the left of the mix screw sits at the open end of the 'U' shaped bar and this seems to stop the mix screw from being turned. There is a slot for a thin screw driver but after trying, it didn't seem to change the mix screw....but i could be wrong.
Since this afternoon (after putting the bits and peices together) it won't idle on LPG and it is also back-firing when the engine is under back pressure (going down hill) and reving at about 1200-1300 rpm.
Don't know how to fix this as I'm not sure if the mix screw has moved or whether it even affects LPG....but it sure is annoying to fix one issue, only to have another one appear.
If you need a photo of the carby showing the Mix screw I'll add one.
Cheers
Paul
:1087: