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Overflow bottle - is it needed?

Tech Talk for Nissan owners.

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Posts: 300
Joined: Mon Apr 24, 2006 11:00 pm
Location: Bayswater, Vic

Overflow bottle - is it needed?

Post by dansedgli »

The lid on my overflow bottle seems to have a 1 way valve in it. I cant blow air through both ways.

It lets water from the rad to the bottle but not the other way around. Do I really need it if all it does is catch coolant?

It would be nice to remove it so I have more space for an airbox.
SWB mav. Some mods.
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Yom
Posts: 1233
Joined: Tue Oct 16, 2007 1:13 pm
Location: Brisbane

Post by Yom »

No its definately required. its an expansion tank.

Without it, when you get hot you dump coolant into the engine bay and when it cools down again it sucks air back into the system

You can see the problem.
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