VetteV8
Well-known member
So, I have now my professionally painted car at home, and have made some trips with it; I am very pleased with it, and now wanted to do some verifications on the basics, but on the carb. till now nothing as I did not have a Dwellmeter.
I now acquired a dwell meter, so I am able to do some checking on the settings.
I have no complains about the running of the engine, although the fuel consumption, highway only, cruising is 14 MPG.
I set the base timing to 12 * [was 8* ]with the 4 lead plug disconnected. Reconnected this plug and connected the dwell meter, when the engine had been idling an radiator became hot.
it showed 21* on the 6 cyl.scale.
Then took it on a short drive, about 5 ml. and left it in Drive [which I had not done earlier ] and set the parkbrake; surprisingly, this easily held the car, while in Drive.
The RPM were spot on @ 500.
The dwellmeter however went out of scale completely !!
The cover of the Air Bleed Valve was already removed; turning the screw had no effect.
Let it rest for a short while, and went back to read the manual once more; yes I had done everything correctly....
So started the engine, and this time the dwell showed 21* again and was stable there; Drive and parkbrake engaged.
Adjusted the air bleed valve, but no change in the settings away from the 21*...........
So turned the ignition OFF, and back ON and saw that the dwell meter was at the end of the scale.
I then measured the voltage on the dwell wire, and saw 12 volt, with a system voltage of 12,5 Volt Ignition ON, Engine OFF.
What does all of this tell you, Mr. Experts??
I understand that one can expect the dwell angle to vary slightly, while running;
Also that adjusting the air bleed screw should see some change in the dwell setting, but I don't see that..
What is my next step? remove the carb and see if the idle mixture screws are accessible?
Or what?
Your input is most appreciated.
Cor
I now acquired a dwell meter, so I am able to do some checking on the settings.
I have no complains about the running of the engine, although the fuel consumption, highway only, cruising is 14 MPG.
I set the base timing to 12 * [was 8* ]with the 4 lead plug disconnected. Reconnected this plug and connected the dwell meter, when the engine had been idling an radiator became hot.
it showed 21* on the 6 cyl.scale.
Then took it on a short drive, about 5 ml. and left it in Drive [which I had not done earlier ] and set the parkbrake; surprisingly, this easily held the car, while in Drive.
The RPM were spot on @ 500.
The dwellmeter however went out of scale completely !!
The cover of the Air Bleed Valve was already removed; turning the screw had no effect.
Let it rest for a short while, and went back to read the manual once more; yes I had done everything correctly....
So started the engine, and this time the dwell showed 21* again and was stable there; Drive and parkbrake engaged.
Adjusted the air bleed valve, but no change in the settings away from the 21*...........
So turned the ignition OFF, and back ON and saw that the dwell meter was at the end of the scale.
I then measured the voltage on the dwell wire, and saw 12 volt, with a system voltage of 12,5 Volt Ignition ON, Engine OFF.
What does all of this tell you, Mr. Experts??
I understand that one can expect the dwell angle to vary slightly, while running;
Also that adjusting the air bleed screw should see some change in the dwell setting, but I don't see that..
What is my next step? remove the carb and see if the idle mixture screws are accessible?
Or what?
Your input is most appreciated.
Cor