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  #11  
Old 10-20-2013, 09:38 AM
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You do know I own one of these..... I take it the fuel leak is on top of the fuel filter where all those wires and crap are? Put an arrow on the fuel leak in those pics you have above..

One thing you MUST do is use anticavitation additives in the coolant. Before the 7.3, it was a 6.9, all they did to make it a 7.3 was bore it out more. Problem with that is that the cylinder walls are now paper thin so any cavitation at all quickly tears a hole in cylinder, basically wrecking the engine. NAPA has the additive. This isn't something that happens after 500k miles, it can happen at 100k or....it just happens, so don't put this off.

The injectors are another stupid design with a collar that slips over them with 2 orings on either side of the return orifice to seal it off. They work but it's kind of a maintenance item, although they are very cheap. Everything about the 7.3idi is very very cheap. MWFI.com has most of the parts for it including maintenance items.

What else you wanna know.
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  #12  
Old 10-20-2013, 12:09 PM
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Bout time somebody piped in that knows a bit about these. I really don't know much about the little things on them, but I can use Google!!
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  #13  
Old 10-20-2013, 12:28 PM
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Top of the fuel filter base is the 2 wires for the fuel heater is exactly where its leaking from. Kind of looks like someone already used epoxy or something to try and seal it up again.

As for the return rail I noticed the plastic bodies swiveled on the injector body. But at this point there is no leaks right there. Our local tow truck driver has one of these 7.3 IDI's and mention the o-ring issues too.

It seems to have good power. Just a wee bit weak starting in the cold weather like possible glow plug issues? I gather you got a test for that too right?
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2002 Dodge Ram 2500, 5.9L Cummins Turbo Diesel, 5 Speed NV4500 transmission, 4x4, 3.55 Gears, AirDog 150 fuel pump with 1/2" Big Line Kit, Stock Bosch VP44 Injection Pump, Bosch RV275 Injectors +40HP, Edge Comp Performance Box, BHAF (Big Honkin' Air Filter), Stock Holset HX35W Turbo, Straight 3" Pipe Exhaust, Crankcase Vent Mod, High Idle Mod, MPG / IAT fooler Mod, ScanGauge II, 25% Tinted Windows, DiPricol Gauges (Fuel pressure, Boost, Pyrometer), 235/85 R16 tires mounted on 16x7 Aluminum mags (weighing 62#), Custom Fog Lights, Custom Backup lights, Silverstar Headlights, 23-24 MPG

1996 Dodge Ram 1500, 5.9L Magnum V8 Gasoline Engine, 46RE Automatic Transmission, 4WD with CAD axle with 3.55 Gears, Mopar Performance PCM, Gutted Kitty, ScanGauge II, 35% Tinted Windows, 16-17 MPG

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  #14  
Old 10-20-2013, 12:55 PM
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Mine looked the same way on that fuel leak. Innovate.....I don't think theres a "fix" out there other than buying new stuff.

Glow plugs are simple enough. This might get you going though http://www.dieselbombers.com/99-03-7...ng-issues.html

You can always pull them and just put 12V across them and see if they glow.

There is also a timing advance on the thing but I'm not sure how it works but you do have to press the pedal like 1/4 down to get the idle advance to operate. I don't know if you ever had it do it but basically it will hold the idle at 800-900 or so and then kicks out when the engine gets to 112F or something, but being it's mechanical you have to "set" it by stepping on the pedal, then something pops out and holds the pedal and it automatically drops out, kinda neat. Mine always started like complete crap but if it was warm it would start in 1/4 crank so it was really weird. I just don't know how much that timing thing makes or breaks the starting of it. They always start like crap from what I can ever tell. I mean you know how the powerstrokes start...and they are direct injection. IDI makes it even worse. HOWEVER! If you rig a pushbutton for the glow plugs into it and hold it for 20 or 30 seconds, it actually isn't too bad. Obviously batteries are the make or break deal on these as they like to crank lol. Hence why I had 3 in mine, and I still killed them. The everstart MAXX batteries were the only things to ever last. Most batteries are fine for the first 10 seconds, after that they all start to go downhill, but the maxx's didn't. Dry cells actually fall on their face so those sucked too.

But yeah once you get it to start, your golden, they are indestructible. I held mine to the floor for half an hour and took the heads off and everything was flawless. I overheated it several times, everything. The things (if you don't turn them up) don't have the fuel to kill them at all.
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1997-12V-NV4500-Dana 80/3.54/2wd-350k---21-27mpg
Removed AFC--No Plate--13.5* timing--BHAF--5" Exhaust--Valair Clutch
1994-Jeep Cherokee-5spd-3.07-4wd-202k---16-19mpg
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  #15  
Old 10-20-2013, 10:21 PM
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Funny... This ambulance has 3 batteries in the side compartment. They are brand new batteries. There is 2 battery chargers on the box but we haven't figured up the plugs on the body. Nothing seems to work. Another project... But the engine does fire up...

I guess I'll check the glow plug for function too...
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2002 Dodge Ram 2500, 5.9L Cummins Turbo Diesel, 5 Speed NV4500 transmission, 4x4, 3.55 Gears, AirDog 150 fuel pump with 1/2" Big Line Kit, Stock Bosch VP44 Injection Pump, Bosch RV275 Injectors +40HP, Edge Comp Performance Box, BHAF (Big Honkin' Air Filter), Stock Holset HX35W Turbo, Straight 3" Pipe Exhaust, Crankcase Vent Mod, High Idle Mod, MPG / IAT fooler Mod, ScanGauge II, 25% Tinted Windows, DiPricol Gauges (Fuel pressure, Boost, Pyrometer), 235/85 R16 tires mounted on 16x7 Aluminum mags (weighing 62#), Custom Fog Lights, Custom Backup lights, Silverstar Headlights, 23-24 MPG

1996 Dodge Ram 1500, 5.9L Magnum V8 Gasoline Engine, 46RE Automatic Transmission, 4WD with CAD axle with 3.55 Gears, Mopar Performance PCM, Gutted Kitty, ScanGauge II, 35% Tinted Windows, 16-17 MPG

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  #16  
Old 10-21-2013, 11:21 AM
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Quote:
Originally Posted by Mopar1973Man View Post
Funny... This ambulance has 3 batteries in the side compartment. They are brand new batteries. There is 2 battery chargers on the box but we haven't figured up the plugs on the body. Nothing seems to work. Another project... But the engine does fire up...

I guess I'll check the glow plug for function too...
Sounds to me like you are going to need to fire up the heat in your hall and spend some time figuring it out. Looks like you got your hands full!
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
Duct Tape can't fix stupid, BUT it can muffle the sound
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  #17  
Old 10-21-2013, 11:52 PM
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LOL... It's sitting outside...

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Michael Nelson - AKA: Mopar1973Man - Forum & Articles
2002 Dodge Ram 2500, 5.9L Cummins Turbo Diesel, 5 Speed NV4500 transmission, 4x4, 3.55 Gears, AirDog 150 fuel pump with 1/2" Big Line Kit, Stock Bosch VP44 Injection Pump, Bosch RV275 Injectors +40HP, Edge Comp Performance Box, BHAF (Big Honkin' Air Filter), Stock Holset HX35W Turbo, Straight 3" Pipe Exhaust, Crankcase Vent Mod, High Idle Mod, MPG / IAT fooler Mod, ScanGauge II, 25% Tinted Windows, DiPricol Gauges (Fuel pressure, Boost, Pyrometer), 235/85 R16 tires mounted on 16x7 Aluminum mags (weighing 62#), Custom Fog Lights, Custom Backup lights, Silverstar Headlights, 23-24 MPG

1996 Dodge Ram 1500, 5.9L Magnum V8 Gasoline Engine, 46RE Automatic Transmission, 4WD with CAD axle with 3.55 Gears, Mopar Performance PCM, Gutted Kitty, ScanGauge II, 35% Tinted Windows, 16-17 MPG

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  #18  
Old 02-04-2014, 03:13 PM
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Did you ever get this ambulance going?
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
Duct Tape can't fix stupid, BUT it can muffle the sound
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  #19  
Old 02-05-2014, 10:15 AM
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Still parked... Still uncertain if the dept is even going to keep it now... Fire Chief is trying not to "Polish a turd"...
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Michael Nelson - AKA: Mopar1973Man - Forum & Articles
2002 Dodge Ram 2500, 5.9L Cummins Turbo Diesel, 5 Speed NV4500 transmission, 4x4, 3.55 Gears, AirDog 150 fuel pump with 1/2" Big Line Kit, Stock Bosch VP44 Injection Pump, Bosch RV275 Injectors +40HP, Edge Comp Performance Box, BHAF (Big Honkin' Air Filter), Stock Holset HX35W Turbo, Straight 3" Pipe Exhaust, Crankcase Vent Mod, High Idle Mod, MPG / IAT fooler Mod, ScanGauge II, 25% Tinted Windows, DiPricol Gauges (Fuel pressure, Boost, Pyrometer), 235/85 R16 tires mounted on 16x7 Aluminum mags (weighing 62#), Custom Fog Lights, Custom Backup lights, Silverstar Headlights, 23-24 MPG

1996 Dodge Ram 1500, 5.9L Magnum V8 Gasoline Engine, 46RE Automatic Transmission, 4WD with CAD axle with 3.55 Gears, Mopar Performance PCM, Gutted Kitty, ScanGauge II, 35% Tinted Windows, 16-17 MPG

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  #20  
Old 02-05-2014, 11:32 AM
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Quote:
Originally Posted by Mopar1973Man View Post
Still parked... Still uncertain if the dept is even going to keep it now... Fire Chief is trying not to "Polish a turd"...
Actually Mythbusters proved that is is possible to polish a turd......
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
Duct Tape can't fix stupid, BUT it can muffle the sound
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