M1009 Engine Problem RE: IP Pump

[RECON 101]

My "84 M1009 completely lost power climbing a steep hill I coasted back down Engine was barely running then stalled I restarted it, the engine raced then stumbled I shut it down restarted, run poorly with no power from then on. What I found so far oil in intake manifold all the way into the heads, fuel filter base leaking. starts ok has a slight miss blue grey smoke at idle throttle it up and black smoke and stumbles misses real bad. Has anyone else had same issues? is it the IP ??? I know CDR Valve is bad and fuel filter base needs to be replaced. feed back needed.URGENT...

 

[cucvrus]

It is fuel related Could be anything in the fuel system. Hole in the feed line clogged fuel tank sock. Sucking air.. ???

 

[RECON 101]

Thanks! unfortunately I started to tear engine down due to limited resources to diagnose properly, I'm way off grid. I do have a spare IP pump and a used filter base

 

[fitz]

Are you sure that your spare injector pump and fuel filter base are good?

 

[Cucvnut]

Could be a failing lift pump.

 

[RECON 101]

spare injector pump 6Months in service use sat in donor Vech 3+ yrs and fuel filter base I'm not sure about

 

[RECON 101]

I changed the Fuel filter it only took 10-15 seconds to prime so i kinda ruled it out. Thanks!!!

 

[RECON 101]

UPDATE, Completed changing out the Injector Pump with Donor Pump, I could barely turn the drive shaft it was grinding and locking up when I turned it, problem solved. Donor pump is working perfect. Thanks to everyone for your support, RECON 101