KV6 - normal for coolant to rise out of tank with cap removed?

ashy90 · 23rd July 2022, 10:23

My ZT has always done this…..
Even from cold, if I remove the cap and start it, the coolant will rise and overflow out the tank.

It never over heats, and has been in a long hold up. I’ve bled the system as best as possible. It done this with the old engine and with its replacement engine. New thermostat, water pump, cap etc.

I can only assume that it is normal behaviour?

suzublu · 23rd July 2022, 11:12

Not over filling are you? The max is bottom of the neck 😎

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SD1too · 23rd July 2022, 13:19

Quote:

Originally Posted by ashy90

I can only assume that it is normal behaviour?

I'm afraid it's not normal Ashley, there is something wrong.

When you bled both your engines did you follow the MG Rover procedure exactly?

Quote:

Originally Posted by suzublu

Not over filling are you? The max is bottom of the neck 😎

I think you mean at the bottom of the tank don't you Ron? That's where the tabs marked MIN and MAX are.

Simon

23rd July 2022, 10:23	#1
ashy90 Avid contributor MG ZT 160 V6 Join Date: Jul 2012 Location: West Sussex Posts: 132 Thanks: 1 Thanked 8 Times in 7 Posts	KV6 - normal for coolant to rise out of tank with cap removed? My ZT has always done this….. Even from cold, if I remove the cap and start it, the coolant will rise and overflow out the tank. It never over heats, and has been in a long hold up. I’ve bled the system as best as possible. It done this with the old engine and with its replacement engine. New thermostat, water pump, cap etc. I can only assume that it is normal behaviour?

23rd July 2022, 11:12	#2
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,912 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	Not over filling are you? The max is bottom of the neck 😎 Sent from my SM-A326B using Tapatalk