Repairing a Rusty Case 508B Backhoe Fuel Injection Pump (Won't Start Fix)

In this detailed repair video, I tackle a tough job on a *Case 508B backhoe* that won’t start due to a completely seized and rusted **fuel injection pump**. Watch as I carefully disassemble the **diesel injection pump**, uncovering years of grime, rust, and dirt. I clean every part meticulously and reassemble the pump to restore fuel flow and get the engine running again. This is a must-see for anyone working with heavy equipment, backhoes, or diesel engines!
If you’re a mechanic, diesel enthusiast, or someone working on heavy machinery, this video will show you a common injection pump issue - albeit slightly exaggerated!
Don't forget to *like**, **share**, and **subscribe* for more hands-on repair videos and tips for working on **backhoes**, **diesel engines**, and **heavy machinery**! Hit the bell icon to stay updated on new content.
🔧 *Keywords:*
Case 508B backhoe, fuel injection pump repair, diesel injection pump, engine won't start, heavy equipment repair, backhoe repair, rusted fuel pump, injection pump cleaning, machinery troubleshooting, diesel engine repair, backhoe maintenance, pump rebuild, rust removal, heavy machinery mechanic, repair tutorial, Case 508B, injection pump rebuild, DIY backhoe repair
Video by RCDiesel

[@timhagemann9236]

Hey. I stumbled across your channel yesterday and really enjoy your videos, keep them coming! I'm from Germany, we farm 200 acres with two John Deere tractors.

[@rcdieselchannel]

@@timhagemann9236 Hey, that's fantastic!! I really appreciate you watching my videos and reaching out! There is a lot more coming. Trying to post a new video every Tuesday and Friday!

[@wesleycooper2647]

Is that nylon washer the piece that comes apart and plugs up the overflow valve?

[@rcdieselchannel]

@@wesleycooper2647 If you are referring to the retaining ring or washer with the pins through it that holds the governor cage to the rotor, then yessir, that is very common on these pumps as they age. Another indicator when that ring comes apart is the engine rpms surge and drop as they please making the throttle sort of uncontrollable.