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10-19-2018, 09:59 AM
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#1
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TF Site Team
City: Paris,TN
Vessel Name: Slo-Poke
Vessel Model: Jorgensen custom 44
Join Date: Jan 2013
Posts: 3,749
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Cummins 3.9 BTDM 150 hp
Just curious, has anybody had any experience with this engine?
__________________
Marty
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10-19-2018, 10:08 AM
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#2
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Technical Guru
City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,194
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Not familiar with the BTDM part. Lots of 4BT3.9-M engines at 150hp out there.
Basically the same as the 6BT 210 but 4cyl vs 6. Solid engine, but low and high speed vibration make it a good bit less "social" than the six.
Might have started life as some sort of auxiliary engine (gen, pump, hydraulic, heavy equipemt??). That might be where the extra letters come in.
Got some pics??
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10-19-2018, 10:17 AM
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#3
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TF Site Team
City: Paris,TN
Vessel Name: Slo-Poke
Vessel Model: Jorgensen custom 44
Join Date: Jan 2013
Posts: 3,749
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Quote:
Originally Posted by Ski in NC
Not familiar with the BTDM part. Lots of 4BT3.9-M engines at 150hp out there.
Basically the same as the 6BT 210 but 4cyl vs 6. Solid engine, but low and high speed vibration make it a good bit less "social" than the six.
Might have started life as some sort of auxiliary engine (gen, pump, hydraulic, heavy equipemt??). That might be where the extra letters come in.
Got some pics??
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This from a YW listing.
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Marty
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10-19-2018, 11:06 AM
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#4
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Technical Guru
City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,194
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Looks like a typical full marine 4BT.
That exhaust hose sure looks like it goes uphill!!! Is that what I am seeing?? If so, deal killer!!
Got any more pics of the turbo exhaust outlet area, rear of engine?
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10-19-2018, 11:15 AM
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#5
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TF Site Team
City: Paris,TN
Vessel Name: Slo-Poke
Vessel Model: Jorgensen custom 44
Join Date: Jan 2013
Posts: 3,749
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Quote:
Originally Posted by Ski in NC
Looks like a typical full marine 4BT.
That exhaust hose sure looks like it goes uphill!!! Is that what I am seeing?? If so, deal killer!!
Got any more pics of the turbo exhaust outlet area, rear of engine?
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This is all that’s shown .
__________________
Marty
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10-19-2018, 11:22 AM
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#6
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Technical Guru
City: Wilmington, NC
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 6,194
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Oh, in that pic it makes more sense. Looks like water is injected after the hump, which is ok.
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10-19-2018, 03:35 PM
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#7
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Guru
Join Date: Jun 2008
Posts: 5,037
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Thousands of those basic engines in Frito Lay trucks, UPS trucks, etc. Very reliable in the vehicle application. I would expect the same.
__________________
Jay Leonard
Ex boats: 1983 40 Albin trunk cabin, 1978 Mainship 34 Model 1
New Port Richey, Fl
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