Opel GT Forum banner

1 - 6 of 6 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter · #1 ·
opel dad helping
i am helping one of my kids with their 1970?,gt-a-l,1.9l,weber carb. i am looking for the correct ignition timing for this car. i have rebuilt the carb for them and am trying to keep them interested in working on it. it has the old style ignition system [points].
can anyone help me with this question? thanks
 

·
Super Moderator
Joined
·
13,812 Posts
With the vacuum advance and retard lines disconnected and plugged, stock timing is at 0.
 

·
Registered
Joined
·
3 Posts
Discussion Starter · #4 ·
weber 32/36 carb

thank you.
i am also having trouble with the weber carb spitting gas back, flooding out, and not starting. i rebuilt it the other day and have set it to the spec i have found [idle screw 2 turns, float 35mm]. it acts like to wants to start but it wont. does anyone have any suggestions??
 

·
Opel Junkie
Joined
·
113 Posts
when you say it is spitting gas, do you mean that it is backfiring throught the carb? i have seen cars do this, and generally it is because the timing is off. what happens is this: if the timing is advanced by 10 or 15 degrees, and the engine is cranked over, the fuel charge is being ignited by the advanced spark. it is ignited before the intake valve has fully closed, and all of that heat has to go somewhere, so it goes through the path of least resistance -- the intake manifold and carburetor.

if you have a service manual, it describes how to statically set the timing close enough to avoid the above scenario. i tried the book method on my car when it wouldn't start, and it worked like a dream.

good luck, and keep those kids interested in a truly wonderful and fulfilling hobby.

mike
 
1 - 6 of 6 Posts
Top