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That's a good idea for sure. I pulled the tank today and found a lot of junk coating the tank and sending unit. Looked like a combination of rust and old, old fuel. The new fuel I had put in there doesn't look new anymore and is a little red colored. Most likely part rust and part Marvel...

I ran the PM tests on the lift pump....I got 6 psi and almost a liter of fuel in a 13-15 second turn of the engine so I am thinking the lift pump is good. I have fuel. I hot wired the fuel cutoff solenoid to the battery and tried again. It died again in a few minutes on the road. It still...

That is something that I will look into first. I suppose I could wire up a light in the cab using power from that wire and see if it was flashing or out when the engine dies. A friend suggested to just hot wire that solenoid from the battery and see if it quits....same test different way of...

DUVAC removed and the new alternators installed. Wiring complete and the truck is running. Still has a fuel issue but hoping to get that sorted out on Thursday. I pulled the harness while I had the injector pump out and think I have all the wires disconnected that are not needed. I did have...

So, update is in order. I swapped in the new injection pump and got it started again after a long ordeal with the water drain on the filter housing leaking and letting fuel out and air into the system so much so that I could not get it primed. I got the leak fixed and the pump primed and it...

Thanks for the input but I did not ask what you thought of Marvel Mystery Oil. Turns out the weep hole in the injection pump was leaking fuel so I ordered a pump. IT is in today but not yet started. Time will tell if that was my whole issue.

The tires are installed!

I know it's an old thread but I have a few questions. I just acquired a 1984 M1010. The charging system works fine but I had a M1009 for 18 years and it was so much simpler then the M1010 system and I want my M1010 to be simple. I was in the process of replacing the injection pump and decided...

Thanks for the update. I put 33" tires on it and they fit fine without any suspension changes but I am interested in what your thoughts are after you get the ORD 2.5 flip kit in.

It ran great till I tried to drive it home.....50 miles. I got about 5 miles into the trip and it died....no fuel. Started right back up and drove another mile and it died again...no fuel. It did this several times and got harder and harder to get started again. I got it turned around headed...

Lots of good ideas here. Thanks. I am headed up tomorrow to work on it. I have a new lift pump in hand since while I am fixing the expected leak I am going to replace the 40 year old pump too. The engine was running fine until I started driving it above 25 mph and started starving for fuel...

That looks a lot like the 6.2 line for sure. Thanks for that information.

That is disappointing! Any idea what corvette? What do people that need this line do without a replacement?

Anybody know where I can find a lift pump supply hose for the 6.2 engine. The molded one between the steel fuel line on the frame going to the lift pump? It’s for an 1984 M1010. Thanks

I would love cheaper options than those Toyo tires, but I’m in a time crunch to get this thing home and the tires that it’s sitting on are not safe. As it is, I’m going to drive about 8 miles to town to get the new ones put on but that’s 50 miles from home And I need it home so I can work on it...

Thanks! Just ordered five of them! They are pricey for sure. Tried to add a picture of my current cracked 1991 (I think) tires and my iphone has deemed it necessary to start putting photos in a .heic format vs the old .jpg format so they wont drop. I did text the admin to see if there was a...

chevymike, Are you running the 255/85-16 on stock rims on your M1010? Do they fit OK? I'm looking for the largest tire I can get under the fenders in stock formation. An OD unit or transmission is not in the budget right now.

Can I drive it like this if the pump is going or is it going to quit on the road pretty quick. I want to drive it home.....50 miles vs driving 100 miles to work on it a few days a week.

IT's not really doing that. IT starts right back up after it dies....like 1/3 revolution of engine and it is running.

The truck has 18000K on it so I suspect it has never been rebuilt. It has been sitting for 7-10 years (I think) but was used in parades and the like before that. It seems to run fine when I have pressure on the throttle but when I back off quickly it dies. Fuel looks clean coming out of the...