JCB loadall still overheating! Help

[Northeastfarmer]

So my jcb 530-70 is still overheating…any ideas please.

We have done the following to it…

new cylinder head gasket

head skimmed, valves re cut, new valve guides, head pressure tested.

new water pump

new thermostat

new radiator

new air filters

oli and fuel filters changed

 

[J 1177]

Heater matrix blocked/ stopping water flowing 100%. Or something daft like slipping fanbelt like the tx combines used to do

 

[Blue.]

hydraulic fan not spinning fast enough?

 

[Northeastfarmer]

Heater matrix blocked/ stopping water flowing 100%. Or something daft like slipping fanbelt like the tx combines used to do

I’ll have to bypass it and see if that fettles it

 

[Northeastfarmer]

hydraulic fan not spinning fast enough?

It’s working at normal speed by a visual inspection

 

[J 1177]

I’ll have to bypass it and see if that fettles it

Worth a try

 

[George Mitchell]

Airlocked somewhere, not familiar with them so just a guess

 

[melted welly]

Has it got a reversible fan? Have had one with the solenoid get stuck, reducing airflow.

header tank/cap leaking, losing pressure in the cooling system?

 

[livestock 1]

Hydraulic fan? Or viscus?

 

[livestock 1]

Is it boiling up?

 

[Pistonbroke]

Does the same system cool the transmission or hydraulics? Assuming it's visibly too hot and not just faulty sender or gauge. Our Manitou gauge goes up into the red when started and then behaves itself afterwards

 

[Gedd]

Get a new one bought youve not sold a hogg yet

 

[Northeastfarmer]

Has it got a reversible fan? Have had one with the solenoid get stuck, reducing airflow.

header tank/cap leaking, losing pressure in the cooling system?

No just a normal fan…..to be honest I don’t want to tempt fate but I’ve removed the header tank cap and used the machine for 2 hours and so far it’s running cooler….wether the cap is faulty is yet to be confirmed

 

[Northeastfarmer]

Hydraulic fan? Or viscus?

Hydraulic

 

[Northeastfarmer]

Is it boiling up?

It has been yes

 

[Northeastfarmer]

Get a new one bought youve not sold a hogg yet

I wouldn’t thank you for a new one! Too much to go wrong on them

 

[Northeastfarmer]

Does the same system cool the transmission or hydraulics? Assuming it's visibly too hot and not just faulty sender or gauge. Our Manitou gauge goes up into the red when started and then behaves itself afterwards

The trans cooler is on the bottom of the rad

 

[Blue.]

Get an infrared thermometer and see where the heat is building.

 

[JCB_JCR]

Radiator hose collapsed internally reducing flow?

 

[Northeastfarmer]

Radiator hose collapsed internally reducing flow?

I’ve fitted a brand new one