Hi everyone,
I have renovated my old TR1(5A8) engine and i am having troubles getting the mixture in idle dialed in.
I hope that some really clever people can help me out inhere
My problem is the front cylinder that is running really rich.
No matter how far I screw ind the mixture screw i get a really rich mixture. 13/14% on the gas tester, and a really yellow/orange color on the color tune.
My exhaust from the front cylinder also looks like an old British chimney.
I have checked the carburators multiple times, all the jets, needles, float height(many times), diaphrams and so on.
- The entire ignition system has been checked
- filters and air passages.
- carburetor mounts for leakage
- gasoline
- carbs has been synchronized several times.
When i drive it, it runs decent, but i am always worries it will turn of the engine.
The engines start really well and idles decent aswell, but in time the spark plug gets so black that it starts misfiring.
I am thinking now:
- could it be valve stem seals (but do they influence the co tester?)
- could it be worn piston rings? (The smoke is not white or grey but black)
- could it be a bad valve? (Would that influence the mixture? I guess that would be poor engine performance and behaviour)
I am really lost here and need some advice