I am looking to replace my proofmeter with an electronic Tachometer/Hour meter. Looking through the archives there are several suggestions for meters but no discussion on how or where to place the sensor. In my case I have an 851 diesel so can not use an inductive (spark plug wire) sensor. I think I read that it is possible to sense the alternator voltage (ripple?). That and flywheel magnets seem unreliable to me but I have no experience here.
I was thinking of fabricating something to attach to the proofmeter cable drive at the hydraulic pump but can not find any information on the drive RPM to engine RPM ratio. That appears to be transmission dependent, the 851 is a five speed transmission.
Have any of you successfully adapted an electronic rpm gauge to a diesel engine?
I was thinking of fabricating something to attach to the proofmeter cable drive at the hydraulic pump but can not find any information on the drive RPM to engine RPM ratio. That appears to be transmission dependent, the 851 is a five speed transmission.
Have any of you successfully adapted an electronic rpm gauge to a diesel engine?