2B & 3B

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Joined
May 26, 2015
Threads
11
Messages
35
Location
Baja California
Cheers!
In need of tech support; currently my BJ has a 2B engine that is a “Run away”.
Have a 3B with a turbo kit that I can install which will go in for the 2B.
My question is what can I save out of the 2B once is out of the rig?
Will the injection pumps are compatible ( they do have different Denso numbers), how about injectors, oil pump, etc.?
I would imagine block, head and crankshaft would be different?.
I just want to save as many parts that are compatible as possible.
Thank you.
First picture is from 2B second is the 3B

IMG_6257.webp


IMG_5616.webp
 
Do you know what caused the runaway? That's scary, and unfortunate. I don't have exact knowledge but I bet there's still quite a bit that's compatible, the major changes are bore and stroke, so anything that doesn't relate to that might work. Timing components, covers, oiling system components, some of the valvetrain possibly. The downward facing oil filter mount will be nice with your turbo kit if your 3B doesn't already have one. Also the injection pump and injectors are going to be tuned a little different but might work, if they are ever rebuilt they could probably be matched to the specs that a 3B calls for.
If you were closer I'd buy some 2B parts for my stash.

Edit: Some info can be here too, despite the title they do talk about the 2B a bit. 2977cc B and 3431cc 3B parts interchangeability - https://forum.ih8mud.com/threads/2977cc-b-and-3431cc-3b-parts-interchangeability.218231/
 
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The runaway on your NA (I assume) 2B is most likely the injection pump (rack stuck open). Is there any damage to the engine?

Many of the 2B parts will be useable, but you need to establish what went wrong with the 2B.
 
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