I have had problems with a 289 for the last 2 yrs. so far changed fuel pump to electric and back to manual. Added electronic ignition. Changed the carb and fuel filter. Changed coils and leads. The problem is that sometimes it's a pig to start. Sounds like it wants to catch but won't. Other times it starts and runs (very well) and then just cuts out and won't restart.
It doesn't cough and splutter to a stop it's almost like the ignition has been turned off. It tries to catch but won't. It's almost like the spark is to weak?
If that makes sense? I don't really understand tricity!! I'm more of a bit of a bit it with a hammer man.
heat soak/ vapour lock? is it heat related do you think? was it points ignition with resistor wire?
No it's not heat. Once it's cooled down it's still difficult to start. Once started it's ok. It did have points and condenser but I changed it to an accuspark electronic ignition kit.
sounds like the points or condensor,but since you have changed them,cant be that,sounds electrical.make sure the coil wires are tight and insulated.also the connections to the starter solnoid.mark
Renew and double earths. One from battery to chassis. One from Battery to block.
Eliminate the simple stuff bfore diving in to the complex.
add a new temporary ignition live from the battery (fused of course) to a switch then to the coil. if it's ok with that there's an intermittent break in the coil feed.
Would a non resistor wire to coil do this when it should be a resisted wire . Coil could be getting hot and shutting down
normally with electronic dizzy a full 12v is required
Coil isn't getting hot and I have tried 2 coils and it made no difference. I think the earths are ok but easy to double them up and renew them so will try that. I don't understand the resistor wire ???
I should be getting 12v from the coil?