4230 overheat with load

[Justin38454]

I have a diesel 4230. Tractor has new
water pump,thermostats,radiator has been
removed and clean, you can see through
hydraulic/ac radiator.ac condenser is not
hooked up to pulleys. I run about and hour
with a load either 15 ft bushhog or 9 ft
disc haymower before it overheats even
with heater running full blast. What
should I check next engine oil cooler? The
trans is a little rough knocks out of gear
going downhill.its a quad.

 

[tim s]

I have never had a Deere oil cooler fail,,Yet,,If it's not pushing water out (from possible liner failure) I would say the radiator is clogged on the inside,,some times its best to re-core them if they are nasty inside,roding them out is an option, but if it's an original radiator I would replace it first..

 

[Justin38454]

(quoted from post at 19:04:06 06/01/14) I have never had a Deere oil cooler fail,,Yet,,If it's not pushing water out (from possible liner failure) I would say the radiator is clogged on the inside,,some times its best to re-core them if they are nasty inside,roding them out is an option, but if it's an original radiator I would replace it first..

Last year I took it to a local mechanic and he took the radaitor off and gave it to his radaitor guy. He cleanedd it and patched a few leaks. Would a clog be easy to misdiagnosis?After I got it back the problem still existed

 

[Tx Jim]

Has inj pump timing been checked lately???? Does hyd oil get hot?

 

[tim s]

My guess is he checked it for leaks ,,but it's hard to really see the insides with out pulling the tanks,, that's where I'm coming from with the re-core thought,,do it once and put it back to work, any radiator that old (and I'm thinking it's original) should be changed out. and even more so if it's been heating up..

 

[Justin38454]

The timing hasnt been checked. I can move hay bales all day long without heating but with the pto load it will. What is exceptible temp of hyd oil and where is the best place to check the rearend?

 

[Justin38454]

Thanks I have fair reason to beleive it is orig

 

[buickanddeere]

New pump and old pulleys?

 

[Tx Jim]

(quoted from post at 14:41:52 06/01/14)
The timing hasnt been checked. I can move hay bales all day long without heating but with the pto load it will. What is exceptible temp of hyd oil and where is the best place to check the rearend?

About 200 degrees is normal. I'd just shoot the hyd oil cooler and trans case with a laser thermometer.

 

[Justin38454]

Replaced the pulley on pump but not on crank. The old pump impeller looked good too.

 

[Justin38454]

Thanks. Also forgot to mention as now Im parked under a shade tree waiting for it to cool. After I let it cool it overheats alot faster than my initial run if that helps

 

[coonie minnie]

I'm siding with Tim... past experience has shown that old radiators can be trouble.

 

[Roger in Iowa]

Agree with the radiator core, but did you really check the crank pulley? Remove the belt and check the V groove if it looks more like U, you have a problem as it will not grip the belt and drive the fan adequately to cool the radiator.

 

[tim s]

Pulleys can be a large part of a heat up problem, but most of the time you hear them squeal a bit and you can pull the fan blade easy...when I do an O/H I change the pulleys out too, unless they have already been changed... All these little things can lead up to a bad day when the work starts to happen, if we can take the time to give all these things attention before hand old tractors can still carry the game..

 

[buickanddeere]

Just out of curiosity. How hot is too hot? Is she boiling over? I wouldn't trust a 39+ yr old temperature gauge.
What temp of stats? I hope they were not 160F.
has anybody tweaked the fuel pump delivery?

 

[Justin38454]

She will boil over with a few minutes running near red. I the only thing I know of getting tweaked near the injection pump is the linkage to throttle, it was idling at about 1500, got back down to 700/800. The overheat was happening before this tweak.

 

[Justin38454]

I replaced the pump pulley when I replace the pump and put on a new belt, I don't hear a squeal. The main grove of the crank pulley does look worse than the ac pulley since it has been used in a decade or so. I will check how easy it is to pull the fan blade when I get it pulled out of the mud I got stuck in yesterday, three weights on both rears and it gets stuck easier than the 2555 with just liquid. geez!