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TOPIC: Cummins Database

Cummins Database 27 Jun 2017 13:56 #1

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Hi Everyone,

This database is for Cummins engine information: part numbers, interchange part numbers, specifications, detailed procedures, etc. Please do not post questions or issues specific to your boat. It's OK to post feedback on data that should be included here. Keep in mind, that once someone posts the data, your feedback post may be deleted to keep the database clean. Thanks in advance.

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1999 3788, Cummins 270 "Freedom"
2013 Boston Whaler 130 SS
Anacortes, WA
Last Edit: by Norton Rider.

Cummins Quick Serve 28 Jun 2017 19:37 #2

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Those of you with Cummins engines can set up a free account at Cummins Quick Serve. You will need the engine serial numbers to do it. Quick Serve provides access to parts catalogs, specs, etc: qsol.cummins.com/info/index.html .

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1999 3788, Cummins 270 "Freedom"
2013 Boston Whaler 130 SS
Anacortes, WA
Last Edit: by Norton Rider.

Cummins Database 28 Jun 2017 19:50 #3

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painthorsman wrote: The 4BT 3.9 Cummins engine is basically the same as the ones used by Case IH in their construction and ag equipment. The biggest difference is " marinizing" . Horsepower outputs for both naturally aspirated and turbocharged models is very similar to ag and construction engines. The 4BT is physically the same as the 6BT Cummins found in Dodge pickups from 1988 thru 2003 minus two cylinders. They can have either a Bosch VE series injection pump or a P7100 injection pump. The most notable difference between them is the VE pump is rotary with the injection lines arranged in a circular pattern at the rear of the pump. The V 7100 series is an inline pump with the injection lines coming out the top of the pump in a straight row. The VE is lubricated by the fuel going through it. The P pump plungers are lubricated by fuel and the bearings and cam shaft are pressure lubricated by the engine oil. Timing on the cummins engine is usually 10degrees BTDC... however, substantially better performance and fuel economy can be attained by advancing the pump to about 14 degrees or slightly more. The downside to advanced timing for performance is harder starts in cold temps. Timing below 10 degrees will result in hard white smokey starts and poor performance and fuel economy.

I can come up with timing, valve lash specs and most anything else cummins info related you need for all the 12 valve models and 24 valve models thru 2003. I worked for Case IH as a service tech for over ten years. Case IH used Cummins in everything after the merge between Case and IH in 1986...til partnering with Iveco in 2000. I'm surprised Bayliner didn't use JD diesels in any of their bigger boats... maybe they did? I'm not aware of it. Other mfgs like Carver offered them...... I like em both... if you cant find parts on the dock for your engine... just go to a tractor dealership..

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1999 3788, Cummins 270 "Freedom"
2013 Boston Whaler 130 SS
Anacortes, WA
Last Edit: by Norton Rider.

Remote Oil and Fuel Filters 28 Jun 2017 20:23 #4

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On most of our boats it is hard to access the fuel filter on the port engine and the oil filter on the starboard engine. To simplify servicing the filters can be relocated toward the center line of the boat. Cummins makes the parts necessary to relocate both filters, but many Cummins parts providers do not know what to look for. Seaboard Marine (sbmar.com) is familiar with filter relocation and can provide kits with all the parts and hoses needed.

Here is a photo of the Oil filter relocation kit installed on a 4BTA engine. The 6BTA installation is the same:

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1999 3788, Cummins 270 "Freedom"
2013 Boston Whaler 130 SS
Anacortes, WA

Engine Heat Exchanger and Aftercooler Zinc Anodes 29 Jun 2017 13:16 #5

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All Cummins 6-series marine engines have a one zinc in the heat exchanger. Raw water after-cooled engines have two zincs in the aftercooler.

Zinc model number: E2
Zinc size: 1/2" NPT thread, 5/8" pencil zinc
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1999 3788, Cummins 270 "Freedom"
2013 Boston Whaler 130 SS
Anacortes, WA

Tony’s Tips 29 Jun 2017 13:19 #6

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Tony Athens at Seaboard Marine has a very helpful page full of tips on Cummins engines, gearboxes, props, etc:
www.sbmar.com/tonys-tips/
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1999 3788, Cummins 270 "Freedom"
2013 Boston Whaler 130 SS
Anacortes, WA
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