Tachs

buzzk · Post by **buzzk** » Thu Aug 04, 2016 9:21 am

What kind of tachs do you have. I don't like the tachs on my boat and I'm thinking about changing over to Aetna Digital Tachs. I had the Digital Tachs on a prior boat with Detroit's and they worked great. Has anyone used the Aetna Tachs on Cummins?

Rick · Post by **Rick** » Thu Aug 04, 2016 2:54 pm

Mine has the Det-Mar's. Been messing with the 4-6-8 cylinder switches on the back to try and settle 'em down for a while. They're still working but I can't seem to get all the jumping to stop at low RPM's. Rick Ticket 85 SF Merc 454 MPI's Falmouth, MA

Chum Bucket · Post by **Chum Bucket** » Fri Aug 05, 2016 6:18 pm

Aetna's, give them an 8 out of 10, but pretty accurate.

buzzk · Post by **buzzk** » Sat Aug 06, 2016 5:15 am

I'm going to call them on Monday with the model number tachs that I have and see if I can use the same sending unit.

Kaptain456 · Post by **Kaptain456** » Wed Aug 31, 2016 4:21 pm

I like my aetnas they are workin off a sending unit on my glendening

buzzk · Post by **buzzk** » Thu Sep 01, 2016 6:47 am

On my old boat the sending unit counted the teeth on the flywheel and they were great.