9N Overheating

[chartwe5]

I have gotten my 9N back together finally, still a few bugs, but at the moment it overheats after running for about 15 mins, i replaced the hoses and the thermostat, but still overheats, is there anything that typically causes this issue on the 9's

 

[Dunk]

(quoted from post at 20:37:11 06/18/09) I have gotten my 9N back together finally, still a few bugs, but at the moment it overheats after running for about 15 mins, i replaced the hoses and the thermostat, but still overheats, is there anything that typically causes this issue on the 9's

Overfilling with coolant, it needs to cover the flues well, but not much more.

Radiator air flow stopped up with plant debris.

Radiator flues stopped up inside.

Blown/not sealing head gasket.

 

[Ken-Pa]

I don"t know about the little 4 bangers but I know if the head gasket is installed wrong , water won"t flow correctly , which causes overheating .Good luck & God bless

 

[Bruce (VA)]

Like Dunk sez, the most common reason for an N to “over heat” is over filling the radiator. Only add enough fluid to cover the core. (check out tip # 23, below as well as tips 25 & 35) It is not actually over heating; it is just spewing out the excess water.

If the radiator is not overfilled, check for low coolant, a loose fan belt, debris in the radiator fins, or a stuck thermostat. A bad water pump will usually squeak or leak. Rarely the radiator will just clog up.
50 Tips

 

[Dell (WA)]

chartwe.......15-mins of runtime is about how long it takes to BOIL yer engine BASSACKWARDS. The pointy end of yer thermostat must face the radiator. (don't ask) ......Dell

 

[Doug L]

If it's the original water pump check that the pumps
vanes are still there and not missing. That's what
happened to me.

 

[chartwe5]

if the radiator flues are stopped up inside what is the best way to unblock them

 

[Dunk]

(quoted from post at 23:47:25 06/18/09) if the radiator flues are stopped up inside what is the best way to unblock them

A radiator shop.

Next on the list is running some vinegar in it.