Engine richens after refueling
#1
Engine richens after refueling
I keep having the same problem for a while now. Engine runs fine but i keep getting a rich setting just after refueling and needs about 30m into the track to clean up. The same thing happens to my brothers engine.
I drive a Sirio Kanai EVO 4 and my brother RB WS9.
Anyone knows what causes this 'problem'?
Sometimes it might flame out...unless i keep blipping the throttle for the first 10m and then take it easy for the next 20-30m and try clearing it up at the jumps.
I drive a Sirio Kanai EVO 4 and my brother RB WS9.
Anyone knows what causes this 'problem'?
Sometimes it might flame out...unless i keep blipping the throttle for the first 10m and then take it easy for the next 20-30m and try clearing it up at the jumps.
#5
Tech Master
iTrader: (32)
WEatherbB is right, normally an engine will lean out after fueling. Especially if you have to make right turns out of the pits, or fill it to the very brim. That is due to getting a little fuel in the pressure tube, causing it to lean further. Assuming you pressure tube comes out the side.
#6
This is not the case. If it became lean it would be for the first 5-10 meters...same thing as when upsite down. The engines have around 2G through them.
You have a point on the lid slamming on the fuel but again...this is the case on other cars but don't richen up.
I've read somewhere about pressure line length... And in my case it's around 15cm/6inch
You have a point on the lid slamming on the fuel but again...this is the case on other cars but don't richen up.
I've read somewhere about pressure line length... And in my case it's around 15cm/6inch
#7
Tech Regular
This is normal behaviour.
Unless you really take youre time and the tank is empty when refueling, yes then it will get leaner.
After refueling pressure will be higher, and the engine will be fed more. same reason why you experience leaning out at the end of a tank.
when full it will be richer, when allmoust emty - it will be leaner.
How to cope: tuning when tank is half full, and dont fill the tank to the rim, nor run it dry.
Unless you really take youre time and the tank is empty when refueling, yes then it will get leaner.
After refueling pressure will be higher, and the engine will be fed more. same reason why you experience leaning out at the end of a tank.
when full it will be richer, when allmoust emty - it will be leaner.
How to cope: tuning when tank is half full, and dont fill the tank to the rim, nor run it dry.
#9
Tech Master
Over filled at pit stop & letting the lid snap shut will not only push fuel into the pressure line it will force extra fuel into the eng case. Feels just like when you remove the pressure line & blow in it to prime the lines & blow too long filling your case with fuel when you first start the motor for that day. Easiest fix is tell pit guy not to fill the tank the tank to the very top,stop at the bottom of the verticle round part the lid sits in or just under & dont snap the lid down just hold onto the zip tie till it shuts then push down with thumb. Done right & its only 2-3 seconds longer for a normal pit man than it is for a pit guy that is spaztic & causes other problems like no brakes for 1/2 a lap with that bionic fuel bottle hand.
#10
This is normal behaviour.
Unless you really take youre time and the tank is empty when refueling, yes then it will get leaner.
After refueling pressure will be higher, and the engine will be fed more. same reason why you experience leaning out at the end of a tank.
when full it will be richer, when allmoust emty - it will be leaner.
How to cope: tuning when tank is half full, and dont fill the tank to the rim, nor run it dry.
Unless you really take youre time and the tank is empty when refueling, yes then it will get leaner.
After refueling pressure will be higher, and the engine will be fed more. same reason why you experience leaning out at the end of a tank.
when full it will be richer, when allmoust emty - it will be leaner.
How to cope: tuning when tank is half full, and dont fill the tank to the rim, nor run it dry.
well said casevac.
tank lid closing too fast...