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ENDT676 (285) vs ETAZ673 (300+) How do you tell the difference?


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After doing some reading on this site, I've realized that the 285 and 300+ are near identical to the untrained eye. What I'm asking is how do I know which one I've got? I have looked everywhere up around the timing cover to find a stamp saying ENDT676. I haven't found it and this engine is missing it's tag. I'm running this in front of a quadruplex, so I'm under the impression that the 300+ would be more appropriate for that transmission. Anyways, is there anything that would be obviously different between the two? I read somewhere on here about the 300+ having water lines running to the intercooler? I provided a picture just for reference. 

 

107733093_1836014433208311_6130864396651217637_n.jpg.f4a27992df68e6bf8b52e6643caf130d.jpg

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Only the later series cooled coolpowers had the water lines to the intercooler

I think these were then 350 hp

There must be different casting numbers on the block as I'm pretty sure the Maxidyne has more webbing around the bottom end

 

The first Maxidynes sold in Australia were prone to cracking the block around the lower end

So to answer your questions, I dunno lol

 

Paul

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1 hour ago, 63BMack said:

If it came out of a cabover the numbers should be on the back of the engine.

Right below head gasket on back of block.   terry:MackLogo:

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Must be out of a cabover. It's certainly not on the flat spot of the timing cover, and good luck looking at the back of the block in a B! I can barely squeeze my hand back there, let alone my head.

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Though it won't help if modified post up the number, or photo the tag from the injection pump to decode the pump's original application.

Dog.jpg.487f03da076af0150d2376dbd16843ed.jpgPlodding along with no job nor practical application for my existence, but still trying to fix what's broke.

 

 

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106695945_298341724690140_6114676749082176747_n.thumb.jpg.6aea400b62a67e764c0a3ec6b2caa158.jpg

 

1432412895_Screenshot2021-03-31091244.png.cb4ce80d87aa6e18e54fdebfd6467e40.png

 

There's my answer, but it wouldn't hurt for us to continue to discuss any other differences for others who may come across this. Were the Maxidyne blocks the same as the Thermodyne? Also, here is a link to the page where I found the info on the pumps.

 

https://www.yumpu.com/en/document/read/6985772/remanufactured-diesel-products-ambac-number-to-customer-number

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4 hours ago, Smoothy said:

106695945_298341724690140_6114676749082176747_n.thumb.jpg.6aea400b62a67e764c0a3ec6b2caa158.jpg

 

1432412895_Screenshot2021-03-31091244.png.cb4ce80d87aa6e18e54fdebfd6467e40.png

 

There's my answer, but it wouldn't hurt for us to continue to discuss any other differences for others who may come across this. Were the Maxidyne blocks the same as the Thermodyne? Also, here is a link to the page where I found the info on the pumps.

 

https://www.yumpu.com/en/document/read/6985772/remanufactured-diesel-products-ambac-number-to-customer-number

So I  must be blind, what answer did you come up with ? I'm struggling to read the injector pump tag 

 

Paul

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1 hour ago, mrsmackpaul said:

So I  must be blind, what answer did you come up with ? I'm struggling to read the injector pump tag 

 

Paul

Paul,

I came up with 5127A-P2

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