autocorpse wrote:Hello group.... greetings and salutations to all,
This is where I run out of experience, it seems as if I've got the ignition circut powered, as the coil wire goes hot with the ignition switch and the starter spins, I've got spark at the spark plug wires, gas in the carb, but the carb funtionality unknown. I've only got power to one set of the points and I know the wire from the other set runs to a relay. MY QUESTION is then: when should the other points fire and go hot? are both required for the engine to run at all, do both fire at the same time, what sensor or switch controls the relay? in other words how, why, what, and whens of the dual point distributor system.
The engine has not yet fired... not knowing the status of the carb I've been misting gas over the carb intake trying to get a cylinder to fire but with no success.... your help and comments are appreciated... thank you.l
Welcome to the forum Peter.
Let me see if I can help you with your points question
autocorpse wrote: MY QUESTION is then:
1. when should the other points fire and go hot?
2. are both required for the engine to run at all,
3. do both fire at the same time,
3. what sensor or switch controls the relay?
1. Your second set of points are the retard points...yes I said retard, laugh and get over it. This one fires once you reach 4th gear.
4. Look at your tranny. You will have two switches on one side. One is your reverse lights switch, and one is to activate your retarded points.
I disabled the retarded points on the dual points distributor on my 620 and she ran better IMO. I did this by running the negative coil wire to the advanced points and reset the timing.
Checking your timing marks....
Pull your valve cover and put your motor to TDC. Check the cam sprocket markings. There is a V notch on the sprocket that lines up with a dash mark on the front cam tower. Your #1 and #2 cam lobes will be at 10 & 2. That will let you know your are at TDC for sure and the dash mark on the tower should be slightly advanced compared to the V notch on the cam sprocket.
Also check your crank pulley and make sure it is lined up with the timing indicator at TDC.
Next, you can check your distributor position. You can pull the distributor out if you feel comfortable and make sure the distributor shaft is at the 11:28 position when the motor is at TDC.
I think you may have a timing issue...but I need more info. Check this first and get back.