wkilleffer
Jedi Knight
Offline
Hello,
Is it normal for a 1974 MGB's idle speed to change with the engine temp when the choke is off?
I've done alot to try and get my carbs properly adjusted with the correct idle speed. The books all say to warm the car up to NOT before making any changes. Trouble is, NOT seems to be a bit subjective. I run with a 195 deg. thermostat, and on the warm days we've had recently, the temp gauge gets just to the right of the N. I've never seen this as a problem. So, I adjust the carbs at that point, and the idle is probably around 850 RPM's, at a point between one and two gauge needles below the 1000 mark.
Trouble is the cool mornings we've had the last couple of days. The temp gauge didn't go beyond the N, and the idle speed wouldn't drop below 1000. Is this sort of thing normal, or do I need to make some sort of adjustment. If the engine gets hotter than typical, the speed drops lower than my adjusted speed. I'm afraid all this is playing havoc with my fuel/air mixture, gas mileage, and engine lifespan. It's frustrating because I've put alot of effort into this, and get irritated when things don't work the way they're supposed to.
Any advice or suggestions would be appreciated.
Thank you,
Is it normal for a 1974 MGB's idle speed to change with the engine temp when the choke is off?
I've done alot to try and get my carbs properly adjusted with the correct idle speed. The books all say to warm the car up to NOT before making any changes. Trouble is, NOT seems to be a bit subjective. I run with a 195 deg. thermostat, and on the warm days we've had recently, the temp gauge gets just to the right of the N. I've never seen this as a problem. So, I adjust the carbs at that point, and the idle is probably around 850 RPM's, at a point between one and two gauge needles below the 1000 mark.
Trouble is the cool mornings we've had the last couple of days. The temp gauge didn't go beyond the N, and the idle speed wouldn't drop below 1000. Is this sort of thing normal, or do I need to make some sort of adjustment. If the engine gets hotter than typical, the speed drops lower than my adjusted speed. I'm afraid all this is playing havoc with my fuel/air mixture, gas mileage, and engine lifespan. It's frustrating because I've put alot of effort into this, and get irritated when things don't work the way they're supposed to.
Any advice or suggestions would be appreciated.
Thank you,