Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-09-2017, 11:25 AM   #1
Senior Member
 
City: Phoenix
Country: U.S.A
Vessel Name: Interim
Vessel Model: Grand Banks 36
Join Date: Jan 2015
Posts: 125
Engines

My son is looking at a few boats powered by Perkins or Yanmar engines. Looking for comments as to good, bad or so so as far as engines go.
Thx
__________________
Advertisement

Gbinterim is offline   Reply With Quote
Old 09-09-2017, 12:00 PM   #2
Guru
 
kapnd's Avatar
 
City: hawaii
Country: usa
Vessel Name: #31
Vessel Model: ex-Navy MUB 50 fish/cruise
Join Date: Aug 2013
Posts: 539
Parts and service availability in your area should be a major criteria in your selection.
Don't know if price is a driving factor in your search, but Perkins, Volvo and Yanmar have ridiculously high prices on parts.
I favor Cummins because their sales volume is huge by comparison, as well as their parts and service network.
__________________

__________________
You can lead a horse to water,
But you can't make him ski...
kapnd is offline   Reply With Quote
Old 09-09-2017, 02:20 PM   #3
Guru
 
Lepke's Avatar
 
City: Between Oregon and Alaska
Country: US
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 1,567
Some depends on how fast he wants to go and how often he wants to overhaul. Engines (in general) with a turbo produce higher exhaust gas temperatures. EGTs at near full throttle will wear the cylinder parts and valves about twice as fast as a non turbo engine. With a very careful skipper maybe only 30% faster wear.
I've run many of both types. If I have a choice, and I'm paying for the overhaul, I always pick natural aspirated engines. The real point of a turbo is to get a smaller engine in a given space. And the engine may not have originally been designed for a turbo. No matter how much cooling you have, EGTs that are too high will wear the engine faster.
Lepke is online now   Reply With Quote
Old 09-09-2017, 02:25 PM   #4
Guru
 
djmarchand's Avatar
 
City: Litchfield, Ct/Punta Gorda, Fl
Country: USA
Vessel Model: Atlas Pompano 23
Join Date: Aug 2012
Posts: 4,784
Be specific about boat and how you plan to use it as well as model of Perkins or Yanmar you are considering.

You can't really answer the question without that info.

David
djmarchand is online now   Reply With Quote
Old 09-09-2017, 02:45 PM   #5
Guru
 
BandB's Avatar
 
City: Fort Lauderdale
Country: USA
Join Date: Jan 2014
Posts: 17,288
It really only matters if you find two identical boats. Otherwise you find the boat you like and neither of those brands are going to run you away.
BandB is offline   Reply With Quote
Old 09-10-2017, 07:37 AM   #6
Senior Member
 
City: Green Cove Springs, Florida
Country: USA
Join Date: Feb 2012
Posts: 307
Send a message via Skype™ to bglad
If he is looking at planing hulls then the higher the top speed the better. Not because he would be going fast but that he can run the engine much slower and still maintain good speed.

Turbo engines in displacement type hulls may offer better economy since generally the turbo will only be used in circumstances where extra power is needed. The rest of the time you will realize the benefits of a smaller displacement engine.

My view in general is that Perkins are better when intermittent high power is needed. Yanmars do not seem to mind being run at higher speeds. Both will be better if their ratings match the particular application and prop matching is done properly.

Quote:
Originally Posted by Gbinterim View Post
My son is looking at a few boats powered by Perkins or Yanmar engines. Looking for comments as to good, bad or so so as far as engines go.
Thx
bglad is offline   Reply With Quote
Old 09-10-2017, 09:45 AM   #7
TF Site Team
 
Baker's Avatar
 
City: League City, Tx
Country: Texas
Vessel Model: Carver 356
Join Date: Oct 2007
Posts: 6,250
Quote:
Originally Posted by BandB View Post
It really only matters if you find two identical boats. Otherwise you find the boat you like and neither of those brands are going to run you away.
BINGO!! Perfect answer to the question!
__________________
Prairie 29...Perkins 4236...Sold
Mainship Pilot 30...Yanmar 4LHA-STP...Sold
Carver 356...T-Cummins 330B
Baker is offline   Reply With Quote
Old 09-11-2017, 08:25 AM   #8
Senior Member
 
City: Subic Bay
Country: Philippines
Join Date: Aug 2017
Posts: 194
Both are sound engines and replies will be varied (probably fairly equally)
how ever in sales world wide and new vessels Yanmar out weigh's Perkins,

The older Perkins are well proven reliable engines that with a little care will run for thousands of hours with no issue, saying that you should try to stay away from the Perkins Prima models (as they have rubber timing belts) and if not changed (even before recommended time) it will let you down and as these engines are an (interference engine) when the belt goes normally your engine is destroyed.

Not to many known short comings with any of the Yanmar models, as with all these engines replacing the exhaust riser on a regular basis is key to a long life,

Cheers Steve
CaptSteve53 is offline   Reply With Quote
Old 09-11-2017, 09:56 AM   #9
Guru
 
North Baltic sea's Avatar
 
Country: Finland
Vessel Model: Nordic Tug 37
Join Date: Sep 2015
Posts: 913
both reliable machines IF YOU ARE maintenace for with love and according to the manufacturer's instructions. ask the vendor to give an explanation of the maintenance. On some models, Yanmar has 6 pencils that are for some owners expensive and may be neglected. as well as cooling liquid exchange, some do not know that they should be replaced and may have internal sore corrosion


ie, the equivalent, just credible maintenance history and general look of the engine room and a successful sea trip. the mark does not have such a great value for Yanmar, perkins, cummins or volvo
North Baltic sea is offline   Reply With Quote
Old 09-11-2017, 10:24 AM   #10
Guru
 
Irish Rambler's Avatar
 
City: NARBONNE
Country: FRANCE
Vessel Name: 'Snow Mouse.'
Vessel Model: BROOM FLYBRIDGE 42.
Join Date: Apr 2014
Posts: 1,468
Perkins, apart from the Prima which was a car/taxi engine are industrial engines marinised. Parts should not be expensive if you think out of the box. The 4 and 6 cylinders are found in Massey Ferguson agricultural machinery, forklift truck, gen sets etc.
I can also give a website for OE overhaul kits (including shipping) which are much cheaper than marine distributors.
Be very careful when servicing Yanmar, if you do it wrong she'll be Smokey and no amount of cleaning intercooler and turbo's will cure it.
Irish Rambler is offline   Reply With Quote
Old 09-11-2017, 10:38 AM   #11
Guru
 
City: Carefree, Arizona
Country: usa
Vessel Name: sunchaser V
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 8,026
Quote:
Originally Posted by Lepke View Post
. If I have a choice, and I'm paying for the overhaul, I always pick natural aspirated engines. .
In newer engines +100 HP there is no choice. Turbos account for probably 95% of diesel sales and in gas engines the numbers are quickly rising.
__________________

sunchaser is online now   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 07:24 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012
×