Thread Tools Display Modes
Old 07-20-2015, 02:14 PM   #1
City: Lakewood, NJ
Country: USA
Join Date: Jul 2015
Posts: 7
Mainship 390 Trawler

I am interested in buying a Mainship 390 trawler 2003 500 hrs. Are there any items i should be paying attention to. It has a single Yanmar diesel. Thanks for any future help. Steve

sjhoman is offline   Reply With Quote
Old 07-20-2015, 02:44 PM   #2
Senior Member
obthomas's Avatar
City: Seabrook Texas
Country: USA
Vessel Name: TheVenture
Vessel Model: 1985 Bestway Labelle Sundeck 40ft
Join Date: May 2013
Posts: 462
Originally Posted by sjhoman View Post
I am interested in buying a Mainship 390 trawler 2003 500 hrs. Are there any items i should be paying attention to. It has a single Yanmar diesel. Thanks for any future help. Steve
The price.

obthomas is offline   Reply With Quote
Old 07-20-2015, 02:56 PM   #3
TF Site Team
dimer2's Avatar
City: Houston
Country: USA
Vessel Name: Baobab
Vessel Model: Bayliner 4788
Join Date: Aug 2013
Posts: 2,343
Welcome aboard!
I'd like to live like a poor man....only with lots of money
dimer2 is offline   Reply With Quote
Old 07-20-2015, 06:46 PM   #4
Senior Member
City: MD
Country: USA
Vessel Name: Blue Yonder
Vessel Model: 37
Join Date: Mar 2013
Posts: 346
A friend of mine was looking at them a couple of years ago. I remember him being concerned about water intrusion in the swim platform.
BlueYonder is offline   Reply With Quote
Old 07-20-2015, 07:31 PM   #5
Senior Member
City: Bohemia
Country: USA
Join Date: Sep 2014
Posts: 140
There are plenty of them on the market. That means (to me) that they are very popular boats. As long as your not crossing oceans, and how many actually do, it's a fine vessel. I was looking, but the 14'6" beam made me cross that off. I am limited because of my slip. I need to be under 14'. They are very nice inside. I prefer the single engine with the bow thruster. Good luck. It's a lot of boat for the money, IMO.
chester613 is offline   Reply With Quote
Old 07-21-2015, 01:03 AM   #6
Senior Member
City: Southern California
Country: US of A!
Vessel Model: Mainship 390
Join Date: Sep 2012
Posts: 152
Thumbs up Happy with mine!

Mine has twin Yanmars, and though that model engine has a great reputation, I still wish I had a single with bow thruster. That said, do a quick check online - especially regarding the 6 cylinder Yanmar in the one you're looking at. Most 6 cylinder Yanmars are fine, though there is one model that i recall with a poor rep.

The swim platform "box" on most have been fixed by now. Originally were a bolt on that were foam filled and leaked - eventually saturating and deteriorating the foam. Plenty of info on line. Nothing terminal with that issue. Probably already fixed. Actually, not sure if it was still an issue with 2003's.

Other than that, no real "gotchas" to watch out for. Just usual boat stuff that any good inspector would be looking for on all surveys.

She's kind of a jack of all trades, master of none. Just a good all around boat. I refer to mine as an SUV. Pretty versatile. Pretty good value for the dollar. Decent quality at its design price point.

PM if you have any questions. I always consider myself a rookie, but happy to share any knowledge I've gleaned. Also, there's a Yahoo group for Mainships that you can pick up some info on. If you can deal with the clunkiness of those forums.
Phyrcooler is offline   Reply With Quote
Old 07-21-2015, 07:41 AM   #7
Senior Member
City: Louisville
Country: USA
Vessel Name: Lucky Dog
Vessel Model: Mainship 350 Trawler
Join Date: Oct 2007
Posts: 101
In addition to what Phyrcooler said, here is what I have experienced;
Check for water leaks via the drain holes under the bridge bench seats, it leaks into the ceiling space, water intrusion into the upper deck through the radar mast base and the table posts bases. Leaks through the rub rail around the entire perimeter of the boat will cause leaks down the inside of the hull and also saturate the CORED aft corners of the boat. Yes, the aft radius corners are balsa cored. The rub rail needs resealing occasionally.
If the swim platform does not have inspection ports in it, then chances are the foam has not been removed. If it does, then you can look in there and check for water. I just vacuum it out. Usually no more than as inch or two annually. Reseal the rub rail around it too.
I have twin Yanmars, so it's the normal give and take of the twin versus single debate, your preference.

Good luck.

David O is offline   Reply With Quote

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 05:44 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012