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Should the fuel line from the shutoff valve to the fuel tank remain pressurized after shutting off the fuel pump? Also what kind of return should I expect from the fuel return line with an input pressure of 75 psi; a drip, a trickle or a gusher? Troubleshooting the hard start, low power and...

I have an M813, not sure how many models have this part or if this post would be better served in another forum, but has anyone found a cheaper civilian replacement for this valve? The lowest OEM valve I've found is $175. The 1/8 NPT stem on my valve is bent, doesn't line up well with the...

I understand the difference between split ring and split rim wheels and the dangers involved with airing them up. Both have been covered extensively on this site. But given the age of our rigs and unknown factors of abuse, corrosion and metal fatigue, are there examples of "split ring" failure...

While draining my Spicer 5 Speed the oil came out frothy. Is this normal? I had just done a short run, ran through the gears with the transfer case in neutral then drained the oil preparatory to a diesel flush. The oil also started draining from the filler port first. I checked for water with...

New issue with my M813, she starts and runs fine then after about 8 minutes stalls out completely when I give her any throttle. Been running fine since I changed the fuel filter in October. Problem began after a run involving maneuvers that flexed the frame and sloshed the fuel tank. I let her...

I'm curious, my 1976 M813 had a steel pickup tube in the fuel tank. Mike Virili at Big Mike's motorpool thought it was "kind of odd to me that steel was used...Most of this stuff would have been copper in the fuel tanks, but it could have been changed out by someone who used what they had to...

Was having problems running my M813, couldn't keep it going without cracking the throttle and then it would stall out. Assumed the issue was air leaking into the large canister filter so I replaced it with a WIX 33528 fuel filter and 33405 Fuel/Water Separator. Problem is the 24770 Filter base...

This is the M813 I bought from JD in September. Been wrenching on her for a few months. Solved some problems, created a few more and although she's not on the road yet, I'm having a blast. But everyone wanted pics so here we go. She started life with the Air Force in Georgia, was transferred...