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Hi S2 friends!
I want to remove the turbo coolant pump on my modified ABY engine. My Garret GT4088 only have oil cooling so no need of the pump. Should i replace the pump with a pipe or plug the hoses?
That is true but the after run circuit is there specifically to cool the turbo so if there's no turbo there's no point in maintaining the pump - which will always leak eventually - on the car.
Ok wath happens if i replace the pump with a hose?
with pluged pump pipes the coolant level is calm at 900 rpm but with higer RPM the coolant level increase an overfills the expansion tank. Can it be air in the cooling system?
You can just join the pipes to the pump as well, I ran like that for 2 years and still carry a plastic join piece in the car in case the pump cracks and leaks.
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Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
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No, I suggest plug is better because if you use a pipe then some coolant will flow that way and in so doing is bypassing the main radiator andso not getting cooled. If you plug the pipes all coolant has to go through the radiator and thus be cooled.
I think that´s the best way to, but i´m no expert.
I have tried both ways
With plugged hoses the coolant level is calm at 900 rpm but on higher RPM´s the coolant level increase an overfills the expansion tank. However, i forgot the bleeding nipple on the hoses that goes true the fire wall, there might be air in the system on that test.
With a pipe instead of the after run pump the coolant level stays calm even on higher rpm´s. Proper bleeding done on that test. But something tells me that´s wrong. But i want to be sure.
The car is disassembled now so i want to be sure before i put it back together
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