1-2 cylinders dead
#11
#13
So, I am trying to follow this thread...
If you have spark (good electrical, timing), have compression (rings, valves okay), and fuel, what makes you think that the cylinders are dead? Sounds like you have everything you need and they are functioning normally. You have checked that they are firing when they are supposed to. What am I missing?
If you have spark (good electrical, timing), have compression (rings, valves okay), and fuel, what makes you think that the cylinders are dead? Sounds like you have everything you need and they are functioning normally. You have checked that they are firing when they are supposed to. What am I missing?
#14
#15
Had this thought at 3am (don't ask)...
You need to double check your plugs and wires. In fact, replace at least the plugs.
Assuming the plugs are wet with fuel and your compression is good, go for the plugs. That inline spark checker is only telling you that SOMEWHERE after that is a ground. The high voltage may be grounding through a short in the ceramic on the plug (signs of carbon on it?). I have also seen a plug arc nicely when grounded to the engine, when pulled out, but still would not fire under a compression load (how, I don't know). I assume that your plugs are gapped correctly too?
You need to double check your plugs and wires. In fact, replace at least the plugs.
Assuming the plugs are wet with fuel and your compression is good, go for the plugs. That inline spark checker is only telling you that SOMEWHERE after that is a ground. The high voltage may be grounding through a short in the ceramic on the plug (signs of carbon on it?). I have also seen a plug arc nicely when grounded to the engine, when pulled out, but still would not fire under a compression load (how, I don't know). I assume that your plugs are gapped correctly too?