Reply
 
Thread Tools Display Modes
 
Old 07-23-2017, 08:00 PM   #1
Member
 
City: Wilmington, NC
Country: USA
Join Date: Oct 2015
Posts: 17
Mainship 430 aft: What's good, what's not?

We are planning a purchase in 18 to 24 months.

The 430 two stateroom just seems to fit our checklist perfectly.

Wife loves the liveable space, salon with real furniture and easy access to everything. No ladders, storage good, cockpit to swimdeck, real queen aft master, separate shower stalls, adequate range, add watermaker/can live on hook for a bit.

If we were ready, we would be having a survey done on a fine specimin in Little River SC.

It has the 370 Yanmars with about 2200 hours. Are there any diesels in these boats that are most desirable? Least?

Any problems with the 8kw genset?

Mainship made these for several years.

Anything to seek out or avoid?

Given an independent hull and engine survey with maintenace records, what are other considerations to weigh given year and equipment choices?

We both like the 430 in the two stateroom version....a lot.
__________________
Advertisement

Seahawk05 is offline   Reply With Quote
Old 07-24-2017, 11:10 AM   #2
Member
 
City: Englewood, fl
Country: USA
Vessel Name: Windy Cove II
Vessel Model: '07 Mainship 430 Sedan
Join Date: Dec 2016
Posts: 11
My 430 has the cummins 8.3 engines and run great. There was a few years with the Yanmars that had bad valves. Some were replaced under warranty and others were cover after major engine failure. There is more information on the Boat Diesel web site.
You can verify the engine serial number to see if these could be an issues. Most issues did show up at about 800 - 1400 hours.
__________________

sanderling18 is offline   Reply With Quote
Old 07-24-2017, 12:48 PM   #3
Guru
 
djmarchand's Avatar
 
City: East Greenwich, RI
Country: USA
Vessel Name: Bella
Vessel Model: Mainship Pilot 34
Join Date: Aug 2012
Posts: 2,875
The Yanmars with the "bad valves" were either the 315 hp 6LP model or the 440 hp 6LY2 model. The 370 hp 6LY has been a solid engine with minimal vices.

But I would slightly prefer a Cummins for its increased displacement.

David
djmarchand is online now   Reply With Quote
Old 07-24-2017, 06:00 PM   #4
Veteran Member
 
City: Orange Beach
Country: USA
Vessel Name: Miss Sheila
Vessel Model: 43 Mainship Aft cabin
Join Date: Sep 2015
Posts: 28
I own the exact boat. I have owned it a little over 2 years. The 370hp Yanmars are great. The 440hp did have some issues. The Kohler gen set is great. No issues with either and plenty of electricity from the 8KW. For the bad, have the swim platform inspected closely, they were not built by Mainship and all have issues with the balsa coring getting wet. Figure about $2000 to $2500 for repair or you can buy a new one for $4500. Very easy boat to work on, most systems are over the counter parts. I have put about 300 hours on mine with no major issues.
vacser is offline   Reply With Quote
Old 07-24-2017, 07:38 PM   #5
Member
 
City: Wilmington, NC
Country: USA
Join Date: Oct 2015
Posts: 17
Thanks Sanderling, David and Vacser. Very much appreciate the first hand knowledge!

Need to digest and ask some further questions.

Gary
Seahawk05 is offline   Reply With Quote
Old 07-24-2017, 09:32 PM   #6
Member
 
TJ Sprocket's Avatar
 
City: Pennsylvania
Country: United States
Vessel Name: Blue Heaven
Vessel Model: Mainship 430 Aft Cabin
Join Date: Jul 2016
Posts: 9
We searched for the best boat for our situation for some time. It really came down to the Sabreline 43 and the Mainship 430 Aft cabin. They only made 14 or so of the Sabres and they hold a much higher price than the Mainship. We ended up acquiring a 3 cabin 2006 430 aft cabin earlier this year. From my research it seems like the Yanmar 440s were more susceptible to problems than the 370s. We have the 370s and are happy with performance. We get a solid 16 knots at 3,000 rpm with the boat setup slightly under loaded (3,400 rpm WOT). Fuel consumption at that speed is around 0.7nmpg. We've put about 1,700 miles on her already in various conditions and she handles them all very well. We'd chartered a Sabre 42 flybridge the year before and although faster was a very uncomfortable ride in any kind of sea. Engine loading is a big factor for long term engine health. If you can't get to rated speed or higher at WOT at the sea trial it would be cause for concern.
TJ Sprocket is offline   Reply With Quote
Old 07-24-2017, 10:13 PM   #7
Senior Member
 
jimL's Avatar
 
City: New Baltimore, NY
Country: USA
Vessel Name: General's Quarters
Vessel Model: 2005 Mainship 430 Aft Cabin Trawler
Join Date: Mar 2015
Posts: 109
We purchased our 2005 MS 430 aft cabin trawler last year from the original owner. It has the Yanmars 370 hp and the genset as you stated. No issues with anything other than routine maintenance, and base lining the maintenance once you buy it. This is our “maintenance year” where we have changed all raw water hoses, fluids and other assessable maintenance issues.

I have a swim platform story, and it relates to the previously mentioned balsa core. We had ours completely rebuilt due to numerous issues at the cost of $6k, but we are now satisfied with it.

This forum has been a Godsend of information and recommendations. We are pleased with the boat, but cruise at 2400-2600 rpm, depending on the tidal current and load the speed changes.

Feel free to reach out to me and we can chat. I love to talk about our Mainship 430, and have received much advice for our fellow forum members.

Jim
jimL is offline   Reply With Quote
Old 07-25-2017, 02:50 PM   #8
Senior Member
 
porman's Avatar
 
City: Duvall, Wa
Country: USA
Vessel Name: Beach Music II
Vessel Model: 2003 Mainship 430 Trawler
Join Date: Aug 2014
Posts: 250
We bought our 430 in 2014 with 800 hours on the 370 Yanmars. The 8kw Kohler had 180 hours. We have put 600 hours on the engines since then with only normal maintenance. Ours is the twin stateroom model and we love all the space in the main cabin. The only drawback that we see is all the stairs going to the different levels. But that is good exercise I guess.
porman is offline   Reply With Quote
Old 07-25-2017, 09:49 PM   #9
Member
 
City: Wilmington, NC
Country: USA
Join Date: Oct 2015
Posts: 17
Thank you all for such valuable insight (including sanderlings excellent detailed post on another thread)

I think that the Yanmar 370's would be excellent for us. The big Cummins sound like the bees knees. I'd rarely if ever run them up, so if they were on an otherwise target boat, then great. The 370's seem a good choice and sufficient.

Thanks for the feedback on the bigger440's. Just a little research after that showed that some of those might have had expensive repairs.

Besides reliability, engine choices and preventive maintenance routines that minimize diesel odors on deck are essential for wedded bliss aboard. Diesel odors in the cabin might result in mutiny.

The swim platform issues on 430 was a total surprise. Thanks for the heads-up and actual costs.

Are the electric throttles (Just two levers control both engines) as desirable as they seem?

In buying used autos sometimes there is a year where the product quality leaps ahead due to an incremental improvement. Is there a watershed year for the 430 where they just solved a problem or used components that are just superior?

We won't buy a boat that has only ladder access to the flybridge or and anything without a step through transom. When you start weeding out the alternatives in this size and require range and water tanks for the Bahamas, there aren't that many choices without getting a much older passagemaker. So, we think that we can live happily with the steps.

If any of you were to trade your boat for something else to meet the mission that you planned st the time you purchased the 430, what would it be? What were your "close second" alternatives?

For the price point, size, etc.....

And are there surveyors that know these boats better than others?

I'm still a ways out and the boats on the market now will likely be sold (or at least I hope so for the owners' sakes). Pulling the facts together in advance helps me, like many others, make better decisions.
Seahawk05 is offline   Reply With Quote
Old 07-26-2017, 02:07 AM   #10
Senior Member
 
porman's Avatar
 
City: Duvall, Wa
Country: USA
Vessel Name: Beach Music II
Vessel Model: 2003 Mainship 430 Trawler
Join Date: Aug 2014
Posts: 250
Seahawk. (I like the name since we're in Seattle) Our boat, built in 2003, has Hynautic throttle and gearshift controls. They are hydraulic (antifreeze coolant) under pressure that use master and slave cylinders. They seem pretty reliable if not allowed to sit for long periods. We usually run at 1600 rpm and 8.5 knots, about 4 gallons per hour, with an occasional run up to clean it out. We don't have any diesel odors except during refueling. We probably have a wet swimstep, but no symptoms yet. Will cross that bridge when we have to. As far as other boats, I would love to have a Krogen, Nordhavn, or Selene, but can't afford them. The Mainship is perfect for us right now. Probably our last boat.
porman is offline   Reply With Quote
Old 07-26-2017, 09:10 AM   #11
Member
 
City: Wilmington, NC
Country: USA
Join Date: Oct 2015
Posts: 17
Thanks Porman, UNCW, our local state university shares Seattle's iconic brand. I'm a Seahawk of the teal-blooded variety.

Those lower speed fuel burn numbers are very encouraging.

Almost all of the KK 42's in this price range have a ladder to the fly. The few widebodies that don't are rarer than hens teeth. And I have to admit that the relative simplicity of close quarters maneuvering twins vs a single screw will reduce frustration at the dock, especially in places like Charleston where I hear currents can be swift.
Seahawk05 is offline   Reply With Quote
Old 07-26-2017, 10:43 AM   #12
Veteran Member
 
City: Orange Beach
Country: USA
Vessel Name: Miss Sheila
Vessel Model: 43 Mainship Aft cabin
Join Date: Sep 2015
Posts: 28
Speaking of changes in year models. The 1999 to 2002 models all had Aluminium railings and hatch frames. Starting in 2003, All hardware is polished stainless, rails, hatches. I agree with Porman, I am always looking to go into a bigger boat, but for all the features you get with the 43, Wide beam, 14/15 knot cruise. Full Queen aft master, 2 large showers, plenty of flybridge seating, it is impossible to find in just 43ft and this price range. We have had ours in the Bahamas for 18 months, the 250 gallons of water comes in nice also.
vacser is offline   Reply With Quote
Old 07-26-2017, 12:05 PM   #13
Senior Member
 
porman's Avatar
 
City: Duvall, Wa
Country: USA
Vessel Name: Beach Music II
Vessel Model: 2003 Mainship 430 Trawler
Join Date: Aug 2014
Posts: 250
Yes, the 250 gallons of water is nice. We spent 3 months in the Broughton Islands, at the North end of Vancouver Island, last summer. We could go for 3 weeks before needing water. This winter I had the choice of spending money on a watermaker or diesel hydronic heat. I went with heat. We use our boat all year and warm is nice.
porman is offline   Reply With Quote
Old 07-26-2017, 05:27 PM   #14
Member
 
TJ Sprocket's Avatar
 
City: Pennsylvania
Country: United States
Vessel Name: Blue Heaven
Vessel Model: Mainship 430 Aft Cabin
Join Date: Jul 2016
Posts: 9
As mentioned above, we found only the Mainship 430 Aft Cabin and Sabreline 43 would meet our needs: flybridge, no ladders, 3 cabins with 2 separate bunks in 3rd cabin for our kids when guests were on board, 16 knot cruise when needed so we can reach anywhere on the northern Chesapeake on weekend trips. We love the layout and the different spaces on board to hang out, and we use all of them. We've had 6 on board for a week in Florida and been very comfortable. Usually it's us, the kids and a dog. Can't understand why no-one makes a similar boat today.
TJ Sprocket is offline   Reply With Quote
Old 08-13-2017, 04:42 PM   #15
Member
 
City: Wilmington, NC
Country: USA
Join Date: Oct 2015
Posts: 17
The 2 stateroom 430 in Little River, SC is still on the market and I wish we were ready. Patience must be a virtue because it doesn't feel so wonderful today....

The right boat at the right time at the right price will come along.
__________________

Seahawk05 is offline   Reply With Quote
Reply

Tags
430, aft cabin, mainship, mainship 430, yanmar

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 04:17 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012