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Jul 15, 2008 7:56 pm
Jul 15, 2008 7:56 pm
Subject: Intermittent firing with my engine
Hi All Lagonda 3 ltr Engine.
I am having intermittent firing with my engine. I clean the plugs and the engine runs very well with lots of power. I can run this for two or three days then the engine will only fire on four or five cylinders. The plugs are a nice light gray colour and set to 22 thou I have also opened the gap to 30 thu for a cleaner burn. I have changed the diss cap and the six plug wires. I have checked the timing, points and capacitor and replaced all the plugs. I have had the carbs professionally tuned. It could be a sticking valve/s (has anybody any experience with oil additive to help clear sticking valves).
This car has only covered 500 miles in the past twenty eight years.
What I can’t understand if it is a sticking valve, why the car runs so well at any speed with loads of power then drops a cylinder or two after leaving the car over night. Any thoughts would be most welcome or do I have to resort to the BIG HAMMER treatment!
Peter
Hi All Lagonda 3 ltr Engine.
I am having intermittent firing with my engine. I clean the plugs and the engine runs very well with lots of power. I can run this for two or three days then the engine will only fire on four or five cylinders. The plugs are a nice light gray colour and set to 22 thou I have also opened the gap to 30 thu for a cleaner burn. I have changed the diss cap and the six plug wires. I have checked the timing, points and capacitor and replaced all the plugs. I have had the carbs professionally tuned. It could be a sticking valve/s (has anybody any experience with oil additive to help clear sticking valves).
This car has only covered 500 miles in the past twenty eight years.
What I can’t understand if it is a sticking valve, why the car runs so well at any speed with loads of power then drops a cylinder or two after leaving the car over night. Any thoughts would be most welcome or do I have to resort to the BIG HAMMER treatment!
Peter