Trade in program for old rig?

The originals were around 7 inches thick solid copper and heavy. They lasted a long time. I replaced the original core in 2012 with a 4 inch thick aluminum core. Rad shop that rebuilt it told me new technology of more cool with less rows. Turned out to be much more efficient even tho I was skeptical at first cause it was half as thick. Seems to be fine after all.

 

Hard to imagine how you can run 140 degree coolant temps on 100 degree days with a rad half my size. I need the fan to keep at 200 on 80 degree days.

 

That one is an oil bypass filter, OPS brand.
Driver side has the fass fuel setup with a block off plate where original filter goes.

 

I read though this thread, was there an ending to the guy trying to sell off the 98 w900? Or was he just posting up a pic of the Trk to poke around on what guys thought of it? Bc it wasn’t really making much sense to me, that year Trk with that caterpillar in it, is in very high demand. Any dealer is gonna give a song and dance about how they can’t sell it bc of the year. But as the salesman is giving you his BS pitch he’s already counting the money that type of Trk will bring in. If they were so hard to sell you would see them laying around all over the place. Unfortunately, the only trucks you see stacking up all over the place are new aged plastic trucks, with ugly def. tanks mounted to thin frames. Which had four previous owners in the past five years. All of them named Yuri.

 

I don’t know but It does . When my uncle retired it in ‘03 I bought it from him. He had taken the shutters off back in the 70’s and shelved them when he put a roof mount a/c on it. The truck worked from family ranches in Texas to Missouri up to his ranch in Montana pulling bulls on the original core. Running 180-90 normally. 200 on hard mountain pulls. Fan is set for 180. With No load just easing along it would never temp above 140. With narrow nose the hood is the fan shroud too so i think it push/pulls a lot of air thru and its not lost thru gaps caused by a tilt hood. Firewall does get warmer. I put the shutters back on and made a air cylinder setup tied into a Horton solenoid to roll open at 180. I also got them and fan on a separate switches so I can manually open them. They will open and if rolling down the road the temp gauge will drop like a rock without fan. Work it hard it stays up normal and needs fan. I can also open shutters and run fan and cool the engine down to 140-50 in a few minutes at idle before shutdown. Its neat I can be a mile or so from home switch em on and be cold by the time i park with no shut down heat soak. Fan only runs maybe 10-25% of the time when running on auto.
In wintertime without the shutters closed it takes forever sometimes 10-15 minutes of driving to get any temp up and heater is useless. Not uncommon to idle down to 100 on gauge.
Got a friend who’s got a ‘72 359 with a BC2 that is just running twin electric fans with shutters pulling rebar loads all day without problems. 14 years ago when he tried it we said ain’t gonna work stupid. Well so far so good. Lol

 

Did he move to electric fans for better cooling or fuel mileage gains from less HP loss from not turning the fan?

 

I tried this on my Columbia a few years ago. Worked great on flat land and light loads, ran too hot in the mountains with a heavy load.

 

He tried it for more hp and not having the fan hub and extra belts on it. And he’s one of those guys that has a knack of always making stuff work that usually fails. If its like mine he was getting mid 6’s with it anyway. He runs central Tx. region from steel plant out to Houston and up to Dallas. Just Texas terrian. Mostly delivers rebar to all the precast companies or road jobs. No big mountains. Just hills and flats.

 

With the electric fans, I used 4 and had them wired in groups of 2. The lower 2 were always on if running the ac and maybe it's my imagination but I swear the ac was colder with thre electric fan set up.

 

I wouldn't doubt that at all with it not pulling all the hot radiator air thru. The ac systems they make now for roof mount that have their own dedicated compact fans can freeze you on low speed.