J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Late Model J30 versus Early Model J30

I have the late model, 1984 #507. As I read the postings I keep wondering if there were other changes to the boat other than the cockpit & quarterberth/galley. Does anyone know of any other changes? One that I am aware of is the engine; I have a 2GM20 rated at 18HP. Thanks

Old Version Hull #348 made 1981 has Yanmar 2GM 13hp (Raw Water Cooled)

They must have used a few different engines over the years. Mondial (hull number 215) has a 2QM-15, which is raw water cooled and rated at 15 hp.

I wonder if I should just go to Jboat and ask them this question.

Mark, I'm not sure if you'll get a lot more information from J/Boats. They built the J/30s a long time ago and a lot of both their records and the molds were lost in a warehouse fire. My understanding is that there wasn't a lot changed between the old and new models, except the cockpit and the galley/berth arrangement. The cockpit was altered to incorporate the coamings and the different bridgedeck. As you mentioned, down below they changed removed one berth and re-arranged the galley, adding a full oven rather than just a two-burner cooktop. The changeover of cockpit and galley wasn't done at one time. I know some boats have a "hybrid" configuration, with one style of cockpit and the other style of galley.

If you want to talk to someone at J/Boats, I called a few months ago about a boat they listed on the website and I got to talk to the man himself. R. Johnstone picked up the phone and he talked to me for almost an hour about a boat I was getting ready to buy. He was a great help. A few other J owners in my area have called down there and found the Johnstones very accessible and always interested in talking about there boats. I have the old version with a 15 hp yanmar raw water cooled.

HHSA
Velocity Girl
#278 (1981)

Mallorca #397 has a 1982 Yanmar 2GM raw water cooled, modified with a heat exchanger to be fresh water cooled. So it is not a 2GM(F) but it is fresh water cooled. By all appearences the heat exchanger was installed at the factory along with a hot water tank and pressure water system.

This should give all the answers on the engines:
http://shop.torresen.com/marine_die...le=Yanmar+Marine+Engine+Identification++

David
#397