(GRANTED GOING FROM MEMORY)
On my RV7 with O360 (No vacuum pump) I have what I believe to be the Standard VANS tach setup, which consists of a small 12" tach cable from the rear of the engine to a transducer and then electrically connected from the transducer to the electric tachometer (display) on the panel.
I've notice in certain cases the tachometer bounces around +/- 200-300 rpm.
I'd like to know if anyone has any suggestions before I go tearing into.
Should I remove the tach cable from both the accessory case and the transducer and clean and lube and put it back? Is it the transducer going bad? Could it be electrical connections somewhere between the transducer and the tachometer?
I've looked at the existing topics.
Thanks in advance!
Mark
On my RV7 with O360 (No vacuum pump) I have what I believe to be the Standard VANS tach setup, which consists of a small 12" tach cable from the rear of the engine to a transducer and then electrically connected from the transducer to the electric tachometer (display) on the panel.
I've notice in certain cases the tachometer bounces around +/- 200-300 rpm.
I'd like to know if anyone has any suggestions before I go tearing into.
Should I remove the tach cable from both the accessory case and the transducer and clean and lube and put it back? Is it the transducer going bad? Could it be electrical connections somewhere between the transducer and the tachometer?
I've looked at the existing topics.
Thanks in advance!
Mark