john deere 4045

[peter1962]

I would like to ask the following question : is the JD 4045 marine engine based upon the 4,5 liter agricultural engine, or is this fundamentaly a different design ? If it shares the same origin, what are the main differences ? I know that in the marine range the M3, M2 and M1 versions only differ in the programming of the injection. But I am not so sure if this engine has the same basics as the tractor unit. Can this be confirmed ?
Regards,
Peter

[FAST FRED]

"I know that in the marine range the M3, M2 and M1 versions only differ in the programming of the injection.


There may not be an injector program difference , just paper rating.

With dry stack and keel cooling your tractor is set to go.

In the US a few times a year "factory rebuilt" with NO CORE REQUIREMENT , makes a great deal.

A wet exhaust manifold and heat exchanger can be found from other than JD sources at huge savings.

The basic engine may be a Japanese earth mover unit K------ ?

FF

[peter1962]

Thank you for your reply, FF.
So, the basis for the JD 4045 could be a ----omatsu ? I have to admit that i am surprised. I thought that JD was producing and developing their own motorblocks, since they sell in such large volumes. Using an engine from another suplier is generaly seen with smaller engine builders.

For the water cooled exhaust manifold : do you mean to purchase this at northern lights ? Or ar there other alternatives ?

greetings,
Peter

[FAST FRED]

"Using an engine from another suplier is generaly seen with smaller engine builders."

Not anymore with Air Police worldwide creating Tiers for mfg to climb .

All the testing required to "prove" some arbitrary set of numbers is really expensive.

Look around on the Komatsu web site and see if they have an identical (same bore & stroke) , just by chance .

Try Marine Exhaust of Alabama , if you are stick on a wet exhaust manifold.

THe stock manifold can use a custom heat blanket , and exhaust cooling water inserted after the riser at very low cost.

[peter1962]

On their website, they show a wheel loader with an engine, with bore x stroke of 107mm by 124mm. That is close to the bore to stroke ratio of the john deere 4045 although the stroke is different (127mm for the JD)
Interesting... http://www.komatsuamerica.com/defaul...ew&prdt_id=943

And no, wet exhaust is not a must, just exploring the different possibilities.

Regards,
Peter

[Dean Smith]

same motor
you have to watch your height on this engine as the mounts are low on the block
You also will have considerable trouble finding a (complete) installation dwg with the marine gear and rear mount position JD marine are less than helpful We mated the pdf of the gear with the engine pdf and actually sent this to JD Australia,
Apart from this it is a very good engine . Wet linered
Depending on where you are and use you have to make sure the emissions comply Tier 2 I think in Europe
The 6 cyl is getting great feed, same cyl sizes on Dashews boats
cheers

[Dean Smith]

something like this

[PowerTech]

all john deere marine engines are made by john deere.

for there small tractors they use yanmar engines .,,,but Deere does not marinize any of them.

there marine base engines are start off life as a industrial/equipment engines. M rating changes are made in the ECU by programing and on the older ones it was made in the injection pump