Deuce won't start. - Steel Soldiers::Military Vehicles Supersite

KaiserM109 · 01-03-2009, 01:59

I know, RTFM. The trouble is that I don't know what TM to look in. Here's the problem in a nutshell (coconut sized):
The deuce is a '66 Kaiser Jeep with a NON-turbo Continental w/ 23K miles.

1. It used to start easily until I ran it out of fuel and had to bleed air out of the valve at the top of the fuel filters to get it to start at all. After that it took longer to crank than before, but would start after about 30 seconds of cranking. It has been a storage queen and has only made a few trips around the storage yard because I don't have it insured and licensed. The fuel heater had a minor leak.
2. This past month it got down to 10 below zero and I went out to start it. It turned over, but wouldn't fire. I noticed the fuel heater was no longer leaking. I gave up, fearing that if I ran the batteries flat, they would freeze.
3. I came back on New Years Day with a helper when it was about 30 degrees. While my helper cranked it I opened the valve on the top of fuel filters, but nothing came out. Without cranking it, I opened each of the 2 valves at the bottom and got a slow dribble of fuel, no water.
4. Thinking that the low fuel level might be below the pickup, I added 5 gal. which brought the gauge up to 1/4. No change and using the heater, even though it is not terribly cold, did nothing and it didn't leak like it had a couple of months earlier.
5. I disconnected the low pressure alarm so that I could hear, turned on the accessory switch and listened for the fuel pump. QUESTION: Can you hear the pump when it is working? I didn't hear anything, even with the fill cap off.

Before I start disconnecting lines, I thought I should ask for a little advice.

QUESTION: Is there a more positive way of testing the pump's pressure? Considering that this might be a high failure item, maybe I should replace it and have a spare? What do you folks out there think?

Arlyn

steelandcanvas · 01-03-2009, 02:09

Arlyn, With the air buzzer disconnected, you should be able to hear your in tank fuel pump from inside the cab. Next time you go to the yard, take a DVM with you and check the fuse on the pump. I believe it's with the wiring assembly on the outside of the tank. Never checked one, just know it's there. Maybe someone else will step-up with some suggestions.

gimpyrobb · 01-03-2009, 02:19

Yes, you should hear the pump if the low air buzzer is disconnected. Even if you hear it, it could be not working. The bottom of the pump has a habit of falling off. My pics of the pump are on the pc that stopped working today. I just posted them last week. Do a search for intank pump by 10 tires and you should be able to see my pics of the pump. I believe you have a pump failure.

gimpyrobb · 01-03-2009, 02:22

Fuel pump not working (and how I troubleshot it)

cleb · 01-03-2009, 02:32

My truck didn't even have a fuse in the holder on top...I'm guessing yours worked at one time, but at least check the connections under there. Check the pressure with a gauge (I believe there is a block on top of the pump with a small port you can put one in) or look for a healthy amount of fuel coming out of the bleeder when opened. If the fuel system is in good condition (no air leaks, etc) the truck should run without the in tank pump, but may not in colder weather like your having now (Thicker fuel). My pump failed internally, works intermittently, and when its not working, makes bad noises. Anyone have a good TO?

baxter · 01-03-2009, 02:33

Arlyn my fuel pump went out this fall. I was always able to here it in the cab but all of a suden it quit . the fuse is under the cap on top of the tank it is easy to check if its good then pull the pump and see if the bottom has fallen off . My pump had just died so I installed an external pump to get buy and will replace the original soon that way I will have a back up if it dies again. Good luck

Vaughn

KaiserM109 · 01-03-2009, 03:07

Quote:

Originally Posted by gimpyrobb

Fuel pump not working (and how I troubleshot it)

Thanks!! Pic's are worth a thousand words, especially in this economy.

Thanks everybody else for the help and suggestions. I am always a little hesitant to start taking things apart without a manual or something or at least a little encouragement. I see a bit of RTV in one picture, so I will make sure I have some of that along too.

Jonathan, I have some ideas for the MKT-85 I’d like to fly by you sometime too.

Arlyn
Colorado

cranetruck · 01-03-2009, 09:37

One gallon of fuel will raise the level about 1/4 inch in the tank. Add more fuel and make sure that all filters are drained and bled.
You may want to drain the tank first to eliminate any possibility of water too.....

FMJ · 01-03-2009, 10:17

Arlyn, in addition to the pump problem, after you ran it out of fuel did you change the primary?, it might be full of crap from the bottom of the tank.

rockman · 01-03-2009, 11:09

I can hear the pump inside the cab also. Mine died and I bought a rebuid kit from Sam Winers which worked well (7 years now). Drain the filters and pull the pump.