skiss
Regular Contributor
"When I replaced my dead tachs
"When I replaced my dead tachs 5 yrs ago when I bought the boat, I put in a 828601. It looked identical to the old 864022 except no hour meter.
Engine went to 2600 rpm and thats all. I had the 2 engines rebuilt and guess what rpm issue.
The shop put a mechanical / optical rev counter in the v cone on the crank front and we picked up 3500 rpm half throtle no load but in gear on land. The tach showed 1500. What should I do now? Both engines and tachs react and measure the same. Buy new tachs or is there something else? Both tachs are 12V.
Engines idle at 570 and my tach shows 220. Thank you in advance....."
"When I replaced my dead tachs 5 yrs ago when I bought the boat, I put in a 828601. It looked identical to the old 864022 except no hour meter.
Engine went to 2600 rpm and thats all. I had the 2 engines rebuilt and guess what rpm issue.
The shop put a mechanical / optical rev counter in the v cone on the crank front and we picked up 3500 rpm half throtle no load but in gear on land. The tach showed 1500. What should I do now? Both engines and tachs react and measure the same. Buy new tachs or is there something else? Both tachs are 12V.
Engines idle at 570 and my tach shows 220. Thank you in advance....."