elameed elaneed
Active Member
i think only reason , when it happened mixed before in engine cooler he not flushing his rad and engine
that is mean oil residue and it collected in expansion tank
that is mean oil residue and it collected in expansion tank
davidsmith1307
Well-Known Member
Drain the coolant. Flush the system through with clean water until the water coming out is completely clean. This may take a long while. You need to get all the old coolant out of the heater matrix as well as the engine.
Refill with new coolant but be very careful to follow the correct procedure in RAVE to fill and get rid of airlocks. The V6 will die quickly if there is not correct coolant flow or there is air in the cylinder waterways.
Refill with new coolant but be very careful to follow the correct procedure in RAVE to fill and get rid of airlocks. The V6 will die quickly if there is not correct coolant flow or there is air in the cylinder waterways.
elameed elaneed
Active Member
i like this way, but you have video how to drain and refill
Nodge68
Well-Known Member
The oil cooler has been known to fail, filling the coolant with oil. This can be the very devil to remove completely. I've done best by breaking the oil down with washing up liquid. This needed running up to temperature then draining out the bottom hose while it's still hot. I had to repeat the process 3 times before all the oil had gone.
I've not found a commercial product that does a better job really.
I've not found a commercial product that does a better job really.
elameed elaneed
Active Member
Can you tell me how to drain all coolant?
Because I tried before but I can't.
Nodge68
Well-Known Member
Remove the bottom radiator hose. This will get 50% of the coolant out. Then you need to remove the block drain plug, under the front exhaust manifold for the next 25%. The last 25% is trapped in the heater, engine oil cooler, gearbox cooler and IRD cooler. Just make sure the coolant is completely refilled before running the engine.
elameed elaneed
Active Member
Alibro
Well-Known Member
If you put a hose in the coolant bottle and wrapped a rag or similar around it to try seal it the pressure from the hose should help to flush the coolant out.
I've heard dishwasher soap is good for cleaning coolant systems. Makes sense as it is designed to flow through dishwasher plumbing and not foam. Just make sure it is properly dissolved if using powder.
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elameed elaneed
Active Member
Dear everybody
Thanks for helping me
Today i change my rad becouse i found alot of oil inside it, and make also full drain for coolant ( i follow #notge68 instructions )
But, i fill tank about 4 times only, and found small Bubbles coming inside tank when engine running
I don't know that is mean still air inside cooling system or i have problem in my head gasket
Thanks for helping me
Today i change my rad becouse i found alot of oil inside it, and make also full drain for coolant ( i follow #notge68 instructions )
But, i fill tank about 4 times only, and found small Bubbles coming inside tank when engine running
I don't know that is mean still air inside cooling system or i have problem in my head gasket
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elameed elaneed
Active Member
sorry , i give wrong information about bubbles
i checked again i found there is no bubble in expansion tank, but this bubbles coming from returned hose when water drop in tank (upper hose in expansion tank)
now, i am in safe side or not?
i checked again i found there is no bubble in expansion tank, but this bubbles coming from returned hose when water drop in tank (upper hose in expansion tank)
now, i am in safe side or not?
elameed elaneed
Active Member
that mean must open the tank, let engine run
Nodge68
Well-Known Member
No, that's not necessary. Just make sure that there is always plenty of coolant in the tank. As the air bubbles out, it will take water from the tank to replace it. It can take several days driving to fully remove all the air in the system. This means regular coolant checks are vital after cooling system work.
davidsmith1307
Well-Known Member
Running with the expansion lid off stops the coolant pressurising. This reduces its boiling point and stops it working properly.
elameed elaneed
Active Member
Ok,i get your idea
