Discussions on everything about the J/30 Sailboat!
With your one stop source
The J/30 Marketplace
Join or Renew
Class Membership
Search

December
M T W T F S S
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
Amy, Zouheir, Mrks56, Sharon, marco sorio
991 Registered Users
Crew Manager Boat Websites

Boat Website subscriptions with
Crew Scheduling & Notifications

Created by former J/30 Rhapsody owner

J/30 Social Network
Popular Topics(Views)
943,606 Dacron Main
152,753 Ananda's Refit
Forum Statistics
Forums28
Topics3,908
Posts18,854
Members991
Most Online223
Dec 17th, 2019
Previous Thread
Next Thread
Print Thread
Page 2 of 2 1 2
Re: Replacing original 2GM with a 2YM15 [Re: Rhapsody #348] #19090
08/22/22 06:28 PM
08/22/22 06:28 PM
Joined: Aug 2015
Posts: 9
Melbourne Beach, FL
F
fcd Offline
Forum Newbie
fcd  Offline
Forum Newbie
F
Joined: Aug 2015
Posts: 9
Melbourne Beach, FL
I didn't make it to the boat this weekend. I have the gear box down as a KM2P 3.22. However the owner between me and the person who re-engined the boat changed the prop to match. I will definitely be on the boat next weekend so will take some pics. The length thing might be boat specific...the shaft log wouldn't need to be very much shorter for a stuffing box to fit.

I don't really see a need for an access panel. To get to the oil fill the piece of plywood behind the steps has to come off, and then to get the whole starboard side of the engine bay off is 2 or 3 more screws.

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: Replacing original 2GM with a 2YM15 [Re: Georges] #19091
08/22/22 07:09 PM
08/22/22 07:09 PM
Joined: Oct 2009
Posts: 88
Belmont, MA
G
Georges Offline OP
Senior Member
Georges  Offline OP
Senior Member
G
Joined: Oct 2009
Posts: 88
Belmont, MA
Thanks fcd,
Thanks Bill,

I have some beginning of answers from Macboring which Yanmar seems to use for its customer service in the US. But still waiting for the drawing with dimension of the original 2GM+KM2A.
I did measure over the week-end and found an exact match on the total length of engine+transmission and relative to silent-block attchement. So I am quite hopeful, but I am still a bit baffled of why the 2YM15+KM2P-1 would fit a J/30 model 79 and not a model 84. So your pic and model would help..

Regarding the propeler pitch adjustment if a KMP2P 3.22 was choose - it makes sense - but I intend to stay with the same ratio (2.62) as the original setup - as mentioned also Bill...

Will update the thread when/If I managed to have the original 2GM+ KM2A drawings...
Cheers,


-- Georges
Foot Loose #467 - CPYC - Winthrop
Re: Replacing original 2GM with a 2YM15 [Re: Georges] #19100
09/06/22 06:12 PM
09/06/22 06:12 PM
Joined: Jun 2020
Posts: 22
Queens, NY
B Davis Offline
Senior Member
B Davis  Offline
Senior Member
Joined: Jun 2020
Posts: 22
Queens, NY
Our boat (1982 #410) was repowered with a 2YM15 back in the mid 2000's long before we bought her. I could take some photos next time I'm at the boat if there's something specific you need to check. Our boat has both quarter berths and the low/no coaming cockpit.

Re: Replacing original 2GM with a 2YM15 [Re: B Davis] #19102
09/08/22 09:04 AM
09/08/22 09:04 AM
Joined: Oct 2009
Posts: 88
Belmont, MA
G
Georges Offline OP
Senior Member
Georges  Offline OP
Senior Member
G
Joined: Oct 2009
Posts: 88
Belmont, MA
Thanks B.
more pics can not hurt, but I am not sure it will give me more info than what Rob's photos showed.
The two open questions really are:
* is the engine setup similar on the v2 of the J/30 (~1984 coaming, bigger cockpit - and bigger 1" propeller shaft).
* how much drop-in is the replacement when you go with the full package (2YM15+KM2P-1).
And picture might not be as helpful (considering of the so many dimension fits involved) than knowing someone that actually did it. But I am already greatfull for the feedback so far... At some point I have to go for it and see how it goes... :-)


-- Georges
Foot Loose #467 - CPYC - Winthrop
Page 2 of 2 1 2

Moderated by  David Erwin 

Who's Online Now
0 registered members (), 41 guests, and 0 spiders.
Key: Admin, Global Mod, Mod
Photos
Hurricane Gulch San Pedro, CA
Truckin'
Endeavour (246) Sailing in Prince Edward Island
First cruise
Fotos Regatas 2017 Tomine Colombia
Recent Posts
Looking for Table Arms
by Russ Atkinson. 11/29/22 03:05 PM
Looking For #1 Genoa
by GeronimoJay. 11/25/22 03:40 PM
#1 Genoa quantum sail $450.00
by GeronimoJay. 11/25/22 03:27 PM
Tiller wiggle
by Cousineddy. 11/12/22 05:57 PM
Mast required asap!!
by John DeGolyer. 10/25/22 09:51 AM
Boat value
by Russ Atkinson. 10/17/22 07:32 AM
2023 NA in Bristol R.I.
by pez. 10/14/22 08:39 AM
Main Cabin and Head Hatches
by B Davis. 10/13/22 03:25 PM
Spinnakers & Misc
by pez. 10/10/22 08:03 AM
Quarter berths
by Rhapsody #348. 10/07/22 08:23 AM
Powered by UBB.threads™ PHP Forum Software 7.6.1.1