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08-19-2016, 07:09 PM
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#1
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Senior Member
City: Brisbane
Vessel Name: Beluga
Vessel Model: Grand Banks 46eu 2006 hull#289
Join Date: Apr 2016
Posts: 223
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Views on John Deere 6125AFM75
Hi all,
A GB52 for sale in OZ has caught my attention. Powered by JD6125AFM75 at 520 hPa with 1400 hours.
I don't know much about JD engines, so any experience anyone has had with this model it would be great to hear from you.THANKS,
H.
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08-19-2016, 07:31 PM
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#2
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Master and Commander
City: Vallejo CA
Vessel Name: Carquinez Coot
Vessel Model: penultimate Seahorse Marine Coot hull #6
Join Date: Sep 2010
Posts: 12,559
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My 80-HP JD-4045 runs like a deer, and the JD mechanic prefers working on my four cylinder rather than JD's larger engines. Perhaps it's due to easy access.
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Kar-KEEN-ez Koot
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08-19-2016, 08:59 PM
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#3
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Guru
City: Vermont
Join Date: Jan 2013
Posts: 10,092
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Quote:
Originally Posted by BrisHamish
Hi all,
A GB52 for sale in OZ has caught my attention. Powered by JD6125AFM75 at 520 hPa with 1400 hours.
I don't know much about JD engines, so any experience anyone has had with this model it would be great to hear from you.THANKS,
H.
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It has a great reputation. I would consider it a plus for the boat.
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MVTanglewood.com
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08-19-2016, 09:21 PM
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#4
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Guru
City: Sydney
Vessel Name: Sojourn
Vessel Model: Integrity 386
Join Date: Oct 2011
Posts: 13,329
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Can`t speak for the JD engines, but as to performance I have observed a GB52 I know, with I think approx 500hp Cats, pretty much up on the plane. Paid captain, no owners, onboard. Fuel consumption?
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BruceK
2005 Integrity 386 "Sojourn"
Sydney Australia
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08-19-2016, 09:53 PM
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#5
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Guru
City: Between Oregon and Alaska
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 3,023
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In the US, for now, JD makes all the bigger farm equipment including diesels. Many commercial boats are replacing older engines with JD in my area. A local launch service replaced 6+ twin setups with JD a couple years ago. Replaced DD 12V71s. No issues, even with hot dog captains. Wish I would have bought the 12v71s.
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08-19-2016, 10:12 PM
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#6
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Guru
City: Fort Myers, FL... Summers in the Great Lakes
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 12,834
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Very happy with my JD 4045 in my boat.
Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
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08-19-2016, 11:03 PM
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#7
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Guru
City: Vermont
Join Date: Jan 2013
Posts: 10,092
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It's interesting reading boatdiesel.com. You almost never read about Deere engines, yet they are in a lot of boats. Maybe it's the wrong audience? But in general, I think no news is good news when it comes to marine engines. Luggers are the same way. 5,000-10,000 hrs on them is nothing.
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MVTanglewood.com
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08-19-2016, 11:09 PM
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#8
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Guru
City: Sydney
Vessel Name: Sojourn
Vessel Model: Integrity 386
Join Date: Oct 2011
Posts: 13,329
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Quote:
Originally Posted by twistedtree
It's interesting reading boatdiesel.com. You almost never read about Deere engines, yet they are in a lot of boats.... But in general, I think no news is good news when it comes to marine engines....
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Makes sense.
Integrity seem to fit JD as standard in new boats sold here,they used Steyr 3-4 years back.
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BruceK
2005 Integrity 386 "Sojourn"
Sydney Australia
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08-20-2016, 01:20 AM
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#9
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Guru
City: Seattle
Join Date: Apr 2012
Posts: 1,142
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I have twin JD 6068TFMs and have nothing but good things to say about them and about JD in general. I know a lot of folks with either 4045s or 6068s and have never heard a bad word. The expected overhaul time for mine is 12-15,000 hours. So, 1400 is just well broken in. I also would consider the JD to be a plus factor for the GB.
Peter-the Luggers are JD blocks with Lugger add-ons. Same dependability as the JD.
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08-20-2016, 04:23 AM
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#10
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Senior Member
City: Brisbane
Vessel Name: Beluga
Vessel Model: Grand Banks 46eu 2006 hull#289
Join Date: Apr 2016
Posts: 223
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Thanks guys for the prompt thoughts, it's very helpful. Will let you know how it goes in due course! H.
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08-20-2016, 08:16 AM
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#11
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Guru
City: San Diego
Vessel Model: Helmsman 4304
Join Date: May 2016
Posts: 2,005
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Even the Navy likes them. Yesterday I watched a JD tractor pulling RIB's out of the water.
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08-20-2016, 08:34 AM
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#12
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Guru
City: Carefree, Arizona
Vessel Name: sunchaser V
Vessel Model: DeFever 48 (sold)
Join Date: Apr 2008
Posts: 10,186
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But, no matter what the engine color it comes down to prior adherence to maintenance. A few years ago I was considering a similar GB with 6125s. The very capable owners had not performed after cooler maintenance nor exhaust elbow checks - Achilles heels of any newer marine engine.
Then add in years of low hour use just sitting around in a seawater environment - not always a good sign. Long lived engines are associated with owner diligence and regular use. The 6125s started out good, but are they now is the real question.
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08-20-2016, 04:36 PM
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#13
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Guru
City: Vermont
Join Date: Jan 2013
Posts: 10,092
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Quote:
Originally Posted by sunchaser
But, no matter what the engine color it comes down to prior adherence to maintenance. A few years ago I was considering a similar GB with 6125s. The very capable owners had not performed after cooler maintenance nor exhaust elbow checks - Achilles heels of any newer marine engine.
Then add in years of low hour use just sitting around in a seawater environment - not always a good sign. Long lived engines are associated with owner diligence and regular use. The 6125s started out good, but are they now is the real question.
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That's certainly true with a sea water cooled aftercooler, which I see the 6125AFM75 is. My 6090AFM75 has a coolant cooled aftercooler, so not subject to the same hazards.
And I see that the 526hp model is M4 rated which is WOT for only 1 out of every 8hrs, and for expected use of 800hrs or less per year. But that's probably fine for the GB, and typical of most recreational boats. In contrast an M2 rated output for the same engine is 400hp and supports 16 out of 24hrs at WOT, and expected use of up to 3000hrs per year.
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MVTanglewood.com
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08-20-2016, 05:00 PM
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#14
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Guru
City: Campbell River
Vessel Name: Blue Sky
Vessel Model: Nordic Tugs 42 Hull #001
Join Date: Oct 2007
Posts: 1,972
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Quote:
Originally Posted by THD
Peter-the Luggers are JD blocks with Lugger add-ons. Same dependability as the JD.
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Not always. Our Lugger L6108A is based on a Komatsu 6108.
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Conrad
Berthed in
Campbell River BC
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08-20-2016, 07:03 PM
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#15
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Guru
City: Seattle
Join Date: Apr 2012
Posts: 1,142
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Conrad-interesting to know-I have a client right next to Lugger here in Seattle and know a few folks there. Always thought they were all JDs.
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08-20-2016, 07:58 PM
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#16
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Senior Member
City: Portsmouth, NH
Vessel Name: Irony
Vessel Model: Bayliner 4588
Join Date: Mar 2016
Posts: 121
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Dashews used JD
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08-20-2016, 09:12 PM
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#17
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Guru
City: Vermont
Join Date: Jan 2013
Posts: 10,092
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Quote:
Originally Posted by THD
Conrad-interesting to know-I have a client right next to Lugger here in Seattle and know a few folks there. Always thought they were all JDs.
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Yup, mostly, but not all.
__________________
MVTanglewood.com
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08-21-2016, 02:29 PM
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#18
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Guru
Join Date: Oct 2007
Posts: 22,553
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I always thought JD and lugger both used Komatsu to marinize?
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08-21-2016, 10:12 PM
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#19
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Guru
City: Campbell River
Vessel Name: Blue Sky
Vessel Model: Nordic Tugs 42 Hull #001
Join Date: Oct 2007
Posts: 1,972
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Quote:
Originally Posted by FF
I always thought JD and lugger both used Komatsu to marinize?
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My somewhat limited understanding is that Lugger marinized John Deeres in the smaller size range and marinized Komatsus in the larger ranges. Having said that, our 1995 Lugger/Komatsu is not that large at 350 HP/7.1 Litre.
Lugger no longer marinizes engines for propulsion use due to emission regs; I suspect that John Deere's strong push with their marinizing efforts didn't help.
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Conrad
Berthed in
Campbell River BC
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08-21-2016, 11:03 PM
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#20
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TF Site Team/Forum Founder
City: League City, Tx
Vessel Name: Floatsome & Jetsome
Vessel Model: Meridian 411
Join Date: Oct 2007
Posts: 7,332
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Quote:
Originally Posted by Conrad
Not always. Our Lugger L6108A is based on a Komatsu 6108.
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ANd I have heard that not all John Deeres are John Deeres. I do know they used a lot of Toyota blocks as well....and that is not a bad thing.
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Prairie 29...Perkins 4236...Sold
Mainship Pilot 30...Yanmar 4LHA-STP...Sold
Carver 356...T-Cummins 330B...Sold
Meridian 411...T-Cummins 450C
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