CakeBandit
Active Member
Hello, I have to do something like a annual MOT for my 2.25L petrol this week, and have one issue that might show up depending on how hot it is the day of the inspection. (I am going to try and go early morning)
The issue is the engine cuts out when it gets hot, if I rev up, or accelerate then the engine cuts out completely to a barely idle (if that). Sometimes if I pump the accel I can get past it with out it dying. I have fitted a electronic fuel pump in series/line (on top of the fuel tank), and it is manually controlled by a momentary switch if I need to overcome a vapor-lock hot start. I think the carb is running out of fuel because maybe the fuel in the bowl is being boiled off from heat to fast. Would I need to change the float level to allow more fuel in the bowl to remedy this? Do I have the incorrect spacer between the carb and manifold, or the something wrong between the intake and exhaust manifold allowing to much heat transfer? Anyone else have similar issues? I don't feel like troubleshooting it for a day or two. This Landy has a quota of only so much work hours, or money put into it every year :lol:.
For me this is not a new issue, but as the weather gets hotter it always shows up. I would like to resolve the issue at the source. Its happens mainly when at red lights, slow city driving, or idling for long stretch.
Timing, petrol, tappets, plugs are all in good shape and the carb had the zenith warp, but has been lapped and seems to be working ok. The fuel line is routed according to the pictures/manual - around the front of the engine to the carb.
I need your wisdom!
The issue is the engine cuts out when it gets hot, if I rev up, or accelerate then the engine cuts out completely to a barely idle (if that). Sometimes if I pump the accel I can get past it with out it dying. I have fitted a electronic fuel pump in series/line (on top of the fuel tank), and it is manually controlled by a momentary switch if I need to overcome a vapor-lock hot start. I think the carb is running out of fuel because maybe the fuel in the bowl is being boiled off from heat to fast. Would I need to change the float level to allow more fuel in the bowl to remedy this? Do I have the incorrect spacer between the carb and manifold, or the something wrong between the intake and exhaust manifold allowing to much heat transfer? Anyone else have similar issues? I don't feel like troubleshooting it for a day or two. This Landy has a quota of only so much work hours, or money put into it every year :lol:.
For me this is not a new issue, but as the weather gets hotter it always shows up. I would like to resolve the issue at the source. Its happens mainly when at red lights, slow city driving, or idling for long stretch.
Timing, petrol, tappets, plugs are all in good shape and the carb had the zenith warp, but has been lapped and seems to be working ok. The fuel line is routed according to the pictures/manual - around the front of the engine to the carb.
I need your wisdom!