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White-GMC 94’ STC 330 N14

Spud_Monkey

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93422446-C36F-458F-8CB1-2597DFD1EEA9.jpeg B9721735-9FCD-4077-BD78-88B7FB61C4B6.jpeg B7079654-E52D-4988-9D72-A062BC0FA1FA.jpeg There is a 4 stamped over the horsepower of 330 with some other 4’s weird anywho 1350 lbs of torque, governed to 1950 rpm. Could of sworn few times I went way over 1950 rpm by accident starting off, I think something has been tweaked before me.
 

Spud_Monkey

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69DDBA07-1DFF-4007-B1D8-8753E8EC4EC5.jpeg B55F18A0-63CC-474D-A30C-38E473111AC6.jpeg E1F3FA32-79B3-4E91-B5DB-20CEE11F4660.jpeg Usual pilot and co pilots view, I need more gauges such as boost, EGT, and maybe more accurate ones than guesstimating. That lever in the last picture I guess is a controller for how much hydraulic pressure for the lines on the wet kit. There is 44 inches in width on the sleeper and I got up on the roof an thought to myself, hmm how many solar panels can I put up here. Answer is 6 which with a Anderson connection I can supplement my current solar panel system from 1200 watts to 1800 watts and when on the road I can run stuff inside the cab without idling all night plus a 2kw to 3kw genset could run a small AC, yep the wheels are turning in my head...
 

Spud_Monkey

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What kinda clutch kysor, Horton's? There's ways of mechanically locking them.

Could also have a viscous fan hub or the type with the air line entering the front of the hub, Kysor.
Horton uses two socket head coarse 3/8 x 1 1/2 bolts in the center of the front of the fan hub to lock it.
Probably the Stat is sticking, best guess. Because bobtail it shouldn't need the fan.

Took a look at it and it's a Kysor, looks to be air driven with the line entering the back of it towards the engine.
 

Spud_Monkey

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Did you determine if the clutch failed or was it belt slip?
No I heard it kick on around 210 degrees, it's running at 190 and climbs up to 220 if not careful then the fan kicks on, something else is going on i.e. wore out coolant, bad water pump or running really lean. Belts feel tight unless I'm missing something.

That's a whole helluva lotta HE!! YEAH.
If that was a day cab , I think it would be a road boss or road boss II
Yeah it's a heavy duty one, both rear axles are at 19k front one is at 12k geared to 3.08 with 9 speed that sounds like is going out. Every time I let off the throttle and coasting down a hill or something I feel/hear clunking noise in the transmission, need to check center carriage bearing and U joints to make sure. Right now wife is cleaning it out, let her have fun :p
 

Truck Shop

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Take a good look at the outside of radiator core. With the air charge cooler and AC denser in front of core and those are probably dirty also it really taxes the cooling system. On a rig of
that age the outside of the core is probably 35% plugged. People don't have tendency of removing the air charge cooler to pressure wash the radiator core. On the grain trucks we use to take
care of it was a yearly task to remove the ACA and pressure wash the cores. They would run pretty warm on a flat empty as soon as a grade came up the temp would climb. The fan temp
switch is more than likely a 210* switch you can install a 200 or 205* also. Read the tag on the Injector pump and lets see what it says, it should have the same CPL number. Even though
it's governed at 1950 you can still over rev in the lower gears.
 

Truck Shop

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With 3.08 rears it's probably got a direct RTX 1609P or a RTX 14609P Eaton gear box. Does the shifter move back and forth when on off the throttle?
 

Spud_Monkey

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With 3.08 rears it's probably got a direct RTX 1609P or a RTX 14609P Eaton gear box. Does the shifter move back and forth when on off the throttle?
No it holds still and it's a RT-13709H, barely rated enough for the torque. There is a PTO on it too for the wet kit. Good place to look on being clogged sounds like some tractors I know working in the fields. Helps to have multiple inputs on what can be wrong unless one has a list.
Lastly damn it stinks inside the cab of wet dog and pi$$ what the hell was in that cab, as it got warmer it was really reeking.
 

Truck Shop

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With it being a 9H gear box, it has a 1.00 ratio in high. With 3.08 gears normal factory gearing is direct with those rears. But I would suspect It was spec'ed as a Midwest Flat Lander.
As far as the rating on torque that's pretty standard for the factory to install a gear box with same torque spec's as engine. Unless it was custom spec'ed.

Mouse Pi$$?
 

funwithfuel

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Those plastic surge tanks have a tendency to not hold pressure. The fill cap(green cap) doesn't seal right most of the time, the low coolant sensor also allows pressure loss. I don't know if there is aftermarket available for it. I changed a lot of those tanks. Between that and all that truck shop mentioned , just some good ol maintenance an she'll be right as rain. Hopefully
 

Steve Frazier

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Do you know what the truck was used for before you bought it? Depending on how the PTO pump is set up that lever in the center will be up/down for a dump body or forward/reverse for a hydraulic driven accessory.

I wouldn't be surprised if what you are smelling is an invasion of mice
 

Spud_Monkey

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With it being a 9H gear box, it has a 1.00 ratio in high. With 3.08 gears normal factory gearing is direct with those rears. But I would suspect It was spec'ed as a Midwest Flat Lander.
As far as the rating on torque that's pretty standard for the factory to install a gear box with same torque spec's as engine. Unless it was custom spec'ed.

Mouse Pi$$?
I believe it's mouse pi$$ as I found droppings in there, but I surely smell the wet dog smell. It's really ominous over the mouse smell which I am familiar with. As for the gearing it goes as following 13.29 9.16 6.53 4.80 3.57 2.57 1.83 1.34 1.00:D

Those plastic surge tanks have a tendency to not hold pressure. The fill cap(green cap) doesn't seal right most of the time, the low coolant sensor also allows pressure loss. I don't know if there is aftermarket available for it. I changed a lot of those tanks. Between that and all that truck shop mentioned , just some good ol maintenance an she'll be right as rain. Hopefully
Oh it's definitely not holding pressure come to think about it, not worried I will go through it from bumper to bumper with time as I did the last one that I currently use. Some stuff can be fixed and noticed right away other stuff will get done as needed.

Do you know what the truck was used for before you bought it? Depending on how the PTO pump is set up that lever in the center will be up/down for a dump body or forward/reverse for a hydraulic driven accessory.

I wouldn't be surprised if what you are smelling is an invasion of mice
Was used as hauler for a farm that had a dump trailer it towed which is use of the joystick, but after that it was bought as truck/trailer combo the guy wanted the trailer and gave the truck to his son and he decided he wanted a automatic so never drove it. Though before that I seen a Ryder inspection sticker on one of the glider flares on the back of the cab so I think that's where it originated from.
 

Spud_Monkey

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Found the problem on not holding pressure, the green cap in the expansion tank for the coolant rubber gasket is hard and bent in couple spots. Found one for $20 online, the cap is around $35 and the tank with the caps is $75, so I'm buying just the cap gasket. How high up from the ground is this deck on one of these?
https://www.govplanet.com/jsp/s/item/3284769?kwtag=p13n-SL&h=
 

mitch504

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Found the problem on not holding pressure, the green cap in the expansion tank for the coolant rubber gasket is hard and bent in couple spots. Found one for $20 online, the cap is around $35 and the tank with the caps is $75, so I'm buying just the cap gasket. How high up from the ground is this deck on one of these?
https://www.govplanet.com/jsp/s/item/3284769?kwtag=p13n-SL&h=

Well, the tires are 42", just guessing the deck is about 52".

I have a '92 daycab version of that. Mine is speced a mite heavier, though. A 3406c at 400hp, a low-hole 9-speed, and 46k full locking rears with 5.3? gears, and, oddly enough, an 11700 lb steer axle.

The electrical systems on those trucks suck, but, so far I haven't found any parts my local Volvo dealer can't get, though I do sometimes have to bat my eyes at the parts lady to get her to dig that deep in the computer.
 

Spud_Monkey

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Well, the tires are 42", just guessing the deck is about 52".

I have a '92 daycab version of that. Mine is speced a mite heavier, though. A 3406c at 400hp, a low-hole 9-speed, and 46k full locking rears with 5.3? gears, and, oddly enough, an 11700 lb steer axle.

The electrical systems on those trucks suck, but, so far I haven't found any parts my local Volvo dealer can't get, though I do sometimes have to bat my eyes at the parts lady to get her to dig that deep in the computer.
Odd axle spec, must be spec'd off tire sizes for that front axle. Sounds likes you are spec'd for heavy and slow hauling with that set up or made for the mountains.What electronic parts you have trouble finding? Cats aren't really my engine, I purposely looked for other than that along with other engines. Either had to have Cummins or Detroit in it.
 

Tenwheeler

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That's a whole helluva lotta HE!! YEAH.
If that was a day cab , I think it would be a road boss or road boss II
That was the predicesser. Road Boss logo went away around the time Volvo got in the game.
Your engine has high flow cooling and a charge air cooler. I saw an industrial engine sister rated at 550 HP @ 2400 or 2450 RPM.
For emissions some truck engines fans did not engauge until at least 215 degrees.
 

Spud_Monkey

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That was the predicesser. Road Boss logo went away around the time Volvo got in the game.
Your engine has high flow cooling and a charge air cooler. I saw an industrial engine sister rated at 550 HP @ 2400 or 2450 RPM.
For emissions some truck engines fans did not engauge until at least 215 degrees.
I will at least try to get it up to 400 hp after that I don't need anymore power. I'm going to 5200 this lid closed till I get the new gasket in and see if that helps, if not then on with next place of reason causing it to run up so high. I can understand it not cutting on till it gets up there, just doing 30 mph and it shouldn't go that high bob tailing.
 

Spud_Monkey

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Where would be good spot online to find some steer tires for this rig, Usually get mine off simpletire.com but am open for suggestions on places that might be better. Shopping around town isn't a option here and I ain't driving to Billings 150 miles away. Need some 22.5's
 

Spud_Monkey

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Guess no one buys tires online here looks like anywho...
Shine a light down in the fuel tanks and see if you can see the bottom and how much scum is in the
very bottom. It looks like the STC control box is just below the PT pump, follow the fuel from the box
to the pump, remove that line and see if there is engine oil in that hose a #4 fitting. The STC is controlled
by engine oil pressure in that box, there should be no engine oil in that fuel line. That could be why the
fuel is dark.
Yep oil in the STC fuel line and it randomly shuts off so I'm guessing that's also a reason it shuts off along with dark looking diesel fuel.
 
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