Bigger mechanical injection pump

J-Pipes

J-Pipes

Active member
Neighbor pulled this pump off an 8.3 his boss was scrapping, said he'd took the whole motor if it wasn't so buried. He has a 12v and an p-pump 24v, was wondering if he could run this bigger pump for more power. Told him I'd check with you guys.
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Guess I only have the one picture, he said the engine came out of a garbage truck.

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The pain in the neck about 8.3 pumps, the have a O-ring in the mounting face and a oil galley that goes into the front cover to feed oil to them. I don't believe I've seen one that has a side oil port like a 5.9 pump does.

It probably would need to be torn down, drilled, tapped, and plugged to use it on a 5.9.
 
Ok, I'll let him know. Think he just saw the larger physical size and made the leap in his head that it's bigger inside too.

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As I recall some 8.3 pumps have smaller plungers, as well as a lazy cam. I know mine made less power than the 160hp pump it replaced.
 
You can block the front feed port with a plug of some sort (lead shot, ball bearing, etc) and then drill and tap for side oil feed. Make sure to put a very small restriction on the feed. This isn't a super good option, but if it was free.. Ive run one for years just fine.
 
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