05-10-2021, 01:36 PM
Hi Venn
My experience with SU equipped cars is that they normally start very readily from cold if the float chamber is primed first. This happens automatically if you have an SU electric pump. With an AC mechanical pump you need to use the priming lever until you hear/feel the float chamber is full. If you are too lazy to open the bonnet (me), 6 or 8 turns of the starting handle achieves the same. With my own car, once the first cold start of the day has been achieved, the car will re-start with no choke if the engine is anything off cold.
With the choke knob pulled out fully, the jet assembly should be lowered a good fraction of an inch and the throttle cracked open to the fast idle setting. The top of the jet is then practically level with the fuel, so it needs very little pressure drop from cranking airflow for fuel to be drawn into the engine. I wonder if either the choke cable movement is somehow being constrained, or if there is a problem with too low a level of fuel in the float chamber ?
I'm not a fan of Easy Start, as it washes off any oil film in the cylinders.
My experience with SU equipped cars is that they normally start very readily from cold if the float chamber is primed first. This happens automatically if you have an SU electric pump. With an AC mechanical pump you need to use the priming lever until you hear/feel the float chamber is full. If you are too lazy to open the bonnet (me), 6 or 8 turns of the starting handle achieves the same. With my own car, once the first cold start of the day has been achieved, the car will re-start with no choke if the engine is anything off cold.
With the choke knob pulled out fully, the jet assembly should be lowered a good fraction of an inch and the throttle cracked open to the fast idle setting. The top of the jet is then practically level with the fuel, so it needs very little pressure drop from cranking airflow for fuel to be drawn into the engine. I wonder if either the choke cable movement is somehow being constrained, or if there is a problem with too low a level of fuel in the float chamber ?
I'm not a fan of Easy Start, as it washes off any oil film in the cylinders.