Won't Start!
Posted: Wed Jul 28, 2021 9:43 am
Hi,
I've trawled the forum looking for various hints and tips as to potential solutions to my non starting problem but I'm stuck!
My car is a '66 S3 with 40DCOE18s (recently ultrasonically cleaned and fully overhauled) with a 123 bluetooth distributor fitted. The car also has a facet electric pump and a regulator fitted set to 1.5 psi.The car cranks and tries to start, but won't catch. The exhaust manifold is getting warm, so there is some combustion happening!
So far, I've checked the following:
- aligned the timing marks between the front pulley and the front case to TDC
- cam lobes for number 4 cylinder are facing each other
- seen that the rotor arm is pointing directly towards the block (12 o'clock if I were leaning over the right hand front wing looking down at the dizzy)
- observed via a mirror that the pump jets are working (I also have fuel on the plugs)
- had #1 spark plug out and earthed on the block to check for a spark
- the distributor cap has all the HT leads exiting towards the rear of the engine (towards the bulkhead)
- new fuel in the tank (I've drained 2x refills of the float bowls to try and remove what may have been stale fuel)
- ignition curve loaded to the dizzy starts at 0 degrees at 500 revs then rises to 12 degrees at 1000 rpm and continue up from there.
- checked the HT to dizzy cap connection order and ensured the correct HT lead is going to the correct plug (1342)
- carbs setup such that the first progression hole is covered by the throttle plate and the mixture screws are wound out 1.5 turns from fully in. This should get me started?
What am I missing?! From the pops and bangs I think I may have the dizzy installed 180 degrees out, which means I am firing on the exhaust stroke - which is generating the heat in the manifold. However, the rotor arm is facing in the correct place when the TDC mark on the front pulley lines up with the mark on the front case and #4 lobes are pointing inwards.
I'm more than happy to start again with a completely fresh check list in case I've missed anything obvious (or need to re check something).
I've trawled the forum looking for various hints and tips as to potential solutions to my non starting problem but I'm stuck!
My car is a '66 S3 with 40DCOE18s (recently ultrasonically cleaned and fully overhauled) with a 123 bluetooth distributor fitted. The car also has a facet electric pump and a regulator fitted set to 1.5 psi.The car cranks and tries to start, but won't catch. The exhaust manifold is getting warm, so there is some combustion happening!
So far, I've checked the following:
- aligned the timing marks between the front pulley and the front case to TDC
- cam lobes for number 4 cylinder are facing each other
- seen that the rotor arm is pointing directly towards the block (12 o'clock if I were leaning over the right hand front wing looking down at the dizzy)
- observed via a mirror that the pump jets are working (I also have fuel on the plugs)
- had #1 spark plug out and earthed on the block to check for a spark
- the distributor cap has all the HT leads exiting towards the rear of the engine (towards the bulkhead)
- new fuel in the tank (I've drained 2x refills of the float bowls to try and remove what may have been stale fuel)
- ignition curve loaded to the dizzy starts at 0 degrees at 500 revs then rises to 12 degrees at 1000 rpm and continue up from there.
- checked the HT to dizzy cap connection order and ensured the correct HT lead is going to the correct plug (1342)
- carbs setup such that the first progression hole is covered by the throttle plate and the mixture screws are wound out 1.5 turns from fully in. This should get me started?
What am I missing?! From the pops and bangs I think I may have the dizzy installed 180 degrees out, which means I am firing on the exhaust stroke - which is generating the heat in the manifold. However, the rotor arm is facing in the correct place when the TDC mark on the front pulley lines up with the mark on the front case and #4 lobes are pointing inwards.
I'm more than happy to start again with a completely fresh check list in case I've missed anything obvious (or need to re check something).