whaltiwanger
New member
"Hello all, we have a great weekend here, and I have gottten the fever. Pulled the boat out of storage, and all runs well. 1987 Mercruiser 5.0 Alpha one drive.
I have one question. While the boat is running, sometime the tach guage, water temp and fuel guage wanders around. Could this be caused by a phantom ground wire somewhere? Where do I need to look? Within a few seconds, or by shutting the engine down and restarting everything is fine.
When the key switch is on and the engine is not running, all the guages operate correctly.
Thanks for your help!"
I have one question. While the boat is running, sometime the tach guage, water temp and fuel guage wanders around. Could this be caused by a phantom ground wire somewhere? Where do I need to look? Within a few seconds, or by shutting the engine down and restarting everything is fine.
When the key switch is on and the engine is not running, all the guages operate correctly.
Thanks for your help!"

