Welcome to Carver Yachts Owners Forum

We are a boating forum for owners of Carver Yachts to enthusiastically discuss all aspects of Carver Boat ownership. Whether you are looking for your first Carver or currently own one, you are sure to feel at home on CarverYachtOwners.com

You are currently viewing our board as a guest which gives you limited access to view most discussions, articles and access our other FREE features. By joining our free community you will have access to searching the forum topics, post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

RPM GAUGE PROBLEM

Discussion of radars, GPS, autopilots, stereos and TV's. Also iPad and other mobile navigation devices.
User avatar

Topic author United States of America
RWS
Scurvy Dog
Scurvy Dog
Posts: 41
Joined: March 18th, 2019, 10:00 pm
Vessel Info: 1987 3607 aft
Location: Knoxville.TN
Has thanked: 26 times

RPM GAUGE PROBLEM

Postby RWS » July 28th, 2020, 11:24 pm

Hello all, hope you are having a safe,fun summer. we have a 1987 3607 and my starboard RPM gauge is reading 1000 RPM's high. Turn engine off and it drops back to 1000, when you turn key turn key to middle position it goes to zero but when fully turned and engine starts it reads high. Will disconcerting from the coil and reconnecting reset it? Or is it time to just get new gauges?Thank you for you thoughts and stay safe.

User avatar

United States of America
RGrew176
Admiral
Admiral
Posts: 3714
Joined: August 17th, 2015, 4:07 am
Vessel Info: 1981 Carver 3007 Aft Cabin
Location: Southgate, MI.
Has thanked: 52 times
Been thanked: 341 times

Re: RPM GAUGE PROBLEM

Postby RGrew176 » July 29th, 2020, 8:08 am

You could pull the tach and check if there is a knob on the backside of the tach. If there is there would be settings for 4 cyl, 6 cyl 8 cyl and so on. On my last boat the tach's were off and I pulled both of them. They were set on the O/B (outboard) setting. Moved both of them to the 8 cyl setting and all was well.
Rick Grew

1981 Carver 3007 Aft Cabin

2004 Past Commodore
West River Yacht & Cruising Club
www.wrycc.com

Canada
Viper
CYO Supporter
CYO Supporter
Posts: 3613
Joined: July 10th, 2015, 9:58 pm
Vessel Info: 1989 Carver 3807
Location: Ontario, Canada
Has thanked: 222 times
Been thanked: 869 times

Re: RPM GAUGE PROBLEM

Postby Viper » July 29th, 2020, 8:58 am

Ya check the rotary switch as Rick mentioned to ensure it is set properly. If it hasn't been touched and this just started happening, you likely have internal gauge issues or a problem with the wiring; bad connection, corrosion, etc.

The internal contacts on the selector switch tend to corrode over time and cause erratic readings. As a temporary measure, note the position of the switch, then rotate it back and forth several times. This helps clean the contacts in the switch. Note that some switches have to be pushed in slightly first before they will rotate so don't force it. Return the switch to the original position, then run the engine to see if that helped.

If it works, the fix can last for years or not long at all. Chances are it'll happen again as it's an indication that the components inside the gauge are starting to degrade and you should budget for new replacements.

Keep us posted
User avatar

Topic author United States of America
RWS
Scurvy Dog
Scurvy Dog
Posts: 41
Joined: March 18th, 2019, 10:00 pm
Vessel Info: 1987 3607 aft
Location: Knoxville.TN
Has thanked: 26 times

Re: RPM GAUGE PROBLEM

Postby RWS » July 29th, 2020, 3:24 pm

RGrew176 wrote:Source of the post You could pull the tach and check if there is a knob on the backside of the tach. If there is there would be settings for 4 cyl, 6 cyl 8 cyl and so on. On my last boat the tach's were off and I pulled both of them. They were set on the O/B (outboard) setting. Moved both of them to the 8 cyl setting and all was well.


Thank you.
User avatar

Topic author United States of America
RWS
Scurvy Dog
Scurvy Dog
Posts: 41
Joined: March 18th, 2019, 10:00 pm
Vessel Info: 1987 3607 aft
Location: Knoxville.TN
Has thanked: 26 times

Re: RPM GAUGE PROBLEM

Postby RWS » July 29th, 2020, 3:25 pm

Viper wrote:Source of the post Ya check the rotary switch as Rick mentioned to ensure it is set properly. If it hasn't been touched and this just started happening, you likely have internal gauge issues or a problem with the wiring; bad connection, corrosion, etc.

The internal contacts on the selector switch tend to corrode over time and cause erratic readings. As a temporary measure, note the position of the switch, then rotate it back and forth several times. This helps clean the contacts in the switch. Note that some switches have to be pushed in slightly first before they will rotate so don't force it. Return the switch to the original position, then run the engine to see if that helped.

If it works, the fix can last for years or not long at all. Chances are it'll happen again as it's an indication that the components inside the gauge are starting to degrade and you should budget for new replacements.

Keep us posted



Thank you sir.

Return to “Electronics & Navigation”



Who is online

Users browsing this forum: No registered users and 4 guests