Did someone post a while back that temporary fix for leaky rad was fill with oil, or was that a bad dream? Got a cub that lately is blowing out about 2 quarts every time used(about half hour) Don't seem to get real hot until coolant is down. Rad is couple years old. Fan is turning. No water pump, no thermostat(by design) Nothing funny in oil. Right now, can't hardly take time to fix it properly. Not a pressure system. Can't remember how to tell if its getting hot and pushing it out or seeping out and getting hot. My grass(3 acres)thanks you for any advice. Dave
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flying belgian
Well-known Member
Are you sure the radiator is not plugged with dirt and crap. Take the garden hose with nozzel and blast it out.
I put black pepper in the rad if it's a slow leak.I run a highway tractor and last fall the water pump started leaking so I did a quuick fix 4 cups of ground pepper and I didn't have to stop for the fall season (hauling bales) I have dun that in tractors as well with great sucsess.If yopu have an old beeter of a truck and the head gasket leakes it has been knowen to fix that as well.
Janicholson
Well-known Member
Oil will ruin every rubber component of the cooling system (hoses and cap gasket) It will not conduct heat like water. It will cause overheating due to slow flow.
It will penetrate all scale rust and sediment in the block and radiator and make it impossible to reuse coolant unless the engine is disassembled and boiled out.
When it is first started does it misfire on one cylinder for a little while? if so it is a head gasket. Easy to fix on a flathead. Look to see if bubbles form in the rad on first start up. Ruining a good engine is easier than you might think. Cubs are rock simple. Jim
It will penetrate all scale rust and sediment in the block and radiator and make it impossible to reuse coolant unless the engine is disassembled and boiled out.
When it is first started does it misfire on one cylinder for a little while? if so it is a head gasket. Easy to fix on a flathead. Look to see if bubbles form in the rad on first start up. Ruining a good engine is easier than you might think. Cubs are rock simple. Jim
buickanddeere
Well-known Member
Ok during freezing temps but look up the thermal conductivity of oil/water mix in a cooling system. May as well block half the radiator with cardboard.
james rumph
Member
Keep in mind that you can"t fill a cub radiator.
The thermal pumping system they use will spit out what"s not needed.
I have a 54 and a 55 and neither one of them has coolant that you can see. The don"t over heat and there "Fully" restored.
You must make sure your using a "zero" pressure cap or they will over flow.
Is there a chance that your just putting to much in and it"s spitting out what it doesn"t need?
You could use one of those Preston flushs then ad new coolant and see what happens.
I guessing based on what you have posted that it is coming out the over flow tube.
If it has a pin hole then crimp it closed with needle nose pliers.
The thermal pumping system they use will spit out what"s not needed.
I have a 54 and a 55 and neither one of them has coolant that you can see. The don"t over heat and there "Fully" restored.
You must make sure your using a "zero" pressure cap or they will over flow.
Is there a chance that your just putting to much in and it"s spitting out what it doesn"t need?
You could use one of those Preston flushs then ad new coolant and see what happens.
I guessing based on what you have posted that it is coming out the over flow tube.
If it has a pin hole then crimp it closed with needle nose pliers.
MarkB_MI
Well-known Member
- Location
- Motown USA
Specific heat of oil: 0.4 Btu/lb
Specific heat of water: 1.0 Btu/lb.
Oil is also lighter than water, so the volume of liquid in your cooling system holds significantly less heat when it's filled with oil instead of water.
Specific heat of water: 1.0 Btu/lb.
Oil is also lighter than water, so the volume of liquid in your cooling system holds significantly less heat when it's filled with oil instead of water.
Lou from Wi.
Well-known Member
WHy not add eggs in the radiator and a couple of slices of bacon on the manifold ? VIOLA.INSTANT BREAKFAST LOL.
LOU.
LOU.
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