Tach reads funny
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=26975
Printed Date: November-18-2024 at 9:31pm
Topic: Tach reads funny
Posted By: woodman935
Subject: Tach reads funny
Date Posted: July-15-2012 at 10:59pm
Today on my '96 SN the tach started to be weird. I've owned to boat since new and know it pretty well,610 hours total time. At idle, the tach reads, as it should, 800rpm or so. The motor idles fine, no hesitation all, pulls strong, but at 32 mph the tach shows 4000/4200 rpm, at full throttle 40/42 mph the tach shows 5000 + rpm.
Anyone have any ideas ?
Thanks in advance,
Woody
|
Replies:
Posted By: bhectus
Date Posted: July-15-2012 at 11:29pm
My '96 used to do the same thing. My suggestion is to pull the dash pod and clean all your connections behind the dash, I used a wire brush on all the contacts and nuts, then put them back on. Some dielectric grease will help them from corroding in the future. These older boats are known for having substandard wiring, and over time it catches up to them. Any bit of corrosion will start causing issues such as you are experiencing as the continuity starts getting less and the voltage to the gauges drops.
-------------
'02 Ski Nautique 196 w/ 5.7 Apex bowtie - Sold
'87 Barefoot - sold
'97 Super Sport Nautique - originally custom built for Walt Meloon
'97 Ski Nautique
'83 SN 2001
|
Posted By: woodman935
Date Posted: July-15-2012 at 11:51pm
Thanks for the advise and help. I'll pull the dash and have a look. I was behind the dash on the left side earlier this summer due to a loose ignition set. At that time I didn't notice any corrosion.
Where is the sending unit for the tach on the '96 ? 351 w/carb.
|
|