White 4-270

[M-M]

We are having an overheating problem with one of our 4-270"s. It has good fuel and boost pressure. We had the radiador redone put a new thermostat and water pump on it and are still having problems with it. We have two of these ol girls and still use them quite a bit. We have never had such a problem with the other one. It started about when we finished disking. And on to culivating it got worse. We are stumped the next thing in my mind is an overhaul but not sure. Any ideas?

 

[Fern(Mi)]

Myself unfamiliar with 270 engine, I can only suggest or inquire about basics....
Is the radiator clear of crop and weed seeds, fluff and stuff?
Maybe block needs flushing out?
Fan belts slipping?
About three years ago had radiator screen failures: ripped, corroded chunks missing holes. Originals replacements unavailable. Thought ourselves fortunate, steel sheets with all over hole patterned for substitute. They made one outing used in a couple/three tractors. Tractors over heated. I figured out how to replace screening and make a new one using used aluminum siding for a frame Pictured on my
on line journal.

 

[Oliver662011]

Make sure you have no dirt or anything in the hoses, and you might have to drain the block. Is your coolant clean. Mike

 

[Fern(Mi)]

Has one of the water hoses collapsed, inside, sucked or pressured shut?
? pressure radiator cap??

Fernan

 

[Anonymous-0]

ours always has problems with corn leaves getting between the radiator and oil coolers causing it to overheat. Other than that I would check to see if a hose has sucked shut or pinched itself. Good luck. Gotta love those old whites!!

 

[M-M]

O I know we love to two we still operate.

 

[M-M]

Yes today I drained the coolant and it is clean. There dosent appear to be anything plugging the radiator.

 

[Anonymous-0]

If I remember right that has a Cat 3306 engine in it with a spacer plate between the head and block. On some of this engines when you worked them hard the head gasket would leak causing an overheat. I can not remember but some had steel spacerplates and some where aluminium. On the aluminium the head gaskets would go out after awhile. This would give you an overheat.

 

[mkuhns]

Is the aluminum adapter plate on the back of the water pump close enough to the impeller. I've seen 3406 truck engine overheat due to too much clearance and not enough water flow. Is the 3/8 bypass line from around the T-stat area plugged shut? This allows air to bleed out of the cooling system. There could also be something in the front of the oil cooler where the water circulates, keeping the water from flowing through. Saw a part of a paper towel plugging the copper tubes. Instant overheat. I'd definetely would check that. Water has to pass through the oil cooler first to goe thru the engine. Doesn't take much to plug a a hole only 1/16 of an inch big. Have you verified your temp gauge reading with an infrared thermometer? The gauge could be lying. If you start the engine with that little 3/8 line unhooked, coolant should get pushed out of that line rather quickly. About a quart in 5 seconds. If this engine doesn't push coolant, don't think about overhauling it. Email me if you have any other questions.