Discussions on everything about the J/30 Sailboat!
With your one stop source
The J/30 Marketplace
Join or Renew
Class Membership
J/Fest New England
Aug 10-11, 2019
Sail Newport

1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
Today's Birthdays
No Birthdays
Newest Members
amtdys, Joao Brito CHILE, KarenR, Doug E., aquagirl
867 Registered Users
Crew Manager Boat Websites

Boat Website subscriptions with
Crew Scheduling & Notifications

Created by former J/30 Rhapsody owner

West Marine Affiliate Link

West Marine - The worlds largest boating supply company!
J/30 Class Affiliate Program

J/30 Social Network
Popular Topics(Views)
753,426 Dacron Main
102,830 Ananda's Refit
Forum Statistics
Most Online124
Mar 5th, 2019
Previous Thread
Next Thread
Print Thread
Yanmar 2QM15 1970 - Gages #18033
10/23/18 03:13 PM
10/23/18 03:13 PM
Joined: Jul 2004
Posts: 839
New Orleans, LA, USA
David Erwin Offline OP
J/30 Class Co-President
David Erwin  Offline OP
J/30 Class Co-President
Joined: Jul 2004
Posts: 839
New Orleans, LA, USA
OK my 1979 gages in hull #87 have finally stopped working. I have been reading about A Panel vs B panel. My panel doesn't look like either. You have to lift up the starboard side lazarett to insert the key to start the engine. I suspect my panel is an early A panel design. Anyone have a recommendation to source replacement instruments?

Yanmar Part Number
124070-91100 Tachometer
____________ Oil Pressure Gage?
____________ Voltage Gage?

Looking for ideas...

eBay Find!

West Marine Affiliate Program

The J/30 Class Association has partnered with West Marine and is now a member of the West Marine affiliate program. You can support the J/30 Class when you make your West Marine purchases online. The J/30 Class Association receives a percentage of sales from your purchases when you click through from our website. Click the logo above and you will be directed to the West Marine website with a cookie that identifies you as a J/30 affiliate. You can also use any discounts that you may be authorized.
Re: Yanmar 2QM15 1970 - Gages [Re: David Erwin] #18035
10/23/18 04:30 PM
10/23/18 04:30 PM
Joined: Jul 2018
Posts: 71
Burton, Michigan
nathankt79 Offline
Senior Member
nathankt79  Offline
Senior Member
Joined: Jul 2018
Posts: 71
Burton, Michigan
I just had the same thing happen...tachometer quit while taking her to her winter sleeping spot. I've got the panel where the key and panel is mounted pretty well centered on the inside of the transom. If anyone has a source for these, please let me know as well.



Re: Yanmar 2QM15 1970 - Gages [Re: David Erwin] #18041
10/25/18 07:19 AM
10/25/18 07:19 AM
Joined: May 2007
Posts: 2,583
Portsmouth, RI
Rhapsody #348 Offline
Past J/30 Class President
Rhapsody #348  Offline
Past J/30 Class President
Joined: May 2007
Posts: 2,583
Portsmouth, RI
If everything stops working I suspect it is the return line connection common to all the gauges. Take a meter/continuity tester and ring out all the lines from the panel back to the engine. I suspect you'll find a broken wire or bad connection.

For the tachometer, there is a sensor mounted on the bell housing by the flywheel that generates pulses for the tachometer. Most likely there is a loose connection there. Pull the spade type contact connector off, clean the terminals and if needed gently squeeze the female spade terminal to close the contacts so they seat better.

Re: Yanmar 2QM15 1970 - Gages [Re: David Erwin] #18043
10/26/18 03:11 AM
10/26/18 03:11 AM
Joined: Oct 2018
Posts: 4
Miko78 Offline
Forum Newbie
Miko78  Offline
Forum Newbie
Joined: Oct 2018
Posts: 4
I also had a bad thing happened to my boat. Luckily, my best friend offered to help me by supervising repair works onboard on a daily basis while I was away for my business. The whole story can be read here https://princess55fly.blogspot.com/p/home.html. Because of that situation, I couldn't use my boat for a long time. Really big trouble.

Last edited by Miko78; 10/26/18 03:11 AM.

Moderated by  David Erwin 

Who's Online Now
0 registered members (), 48 guests, and 2 spiders.
Key: Admin, Global Mod, Mod
Endeavour (246) Sailing in Prince Edward Island
First cruise
Fotos Regatas 2017 Tomine Colombia
Regata Armada Tomine Colombia Julio 2017
Recent Posts
Weight and waterline
by nathankt79. 03/21/19 08:30 AM
best replacement batteries?
by Chris623. 03/14/19 08:24 PM
Looking for SPIN Pole End
by megreene52. 03/12/19 03:26 PM
1983 J/30 Hull #427 Taku
by Taku. 03/06/19 12:11 PM
Engine starting question
by last fling IV. 03/05/19 03:52 PM
Looking for NA Photo Blitz
by David Erwin. 03/05/19 10:07 AM
Lines back to the cockpit
by Pabs. 02/27/19 05:06 PM
#3 Measurements
by usa1136. 02/26/19 12:14 AM
Set Your Races & Schedule Your Crew
by Rhapsody #348. 02/25/19 03:09 PM
Shroud Grommets
by Rhapsody #348. 02/25/19 02:52 PM
Powered by UBB.threads™ PHP Forum Software