ZT 190 pressurising..done loads..no luck to date! - Page 2

errol1 · 17th July 2015, 12:47

Thanks for the updates all.

Will go over what I have already done to date and incorporate your advice and will report back. Feeling a little bit more optimistic!!!

Cheers!

Data · 17th July 2015, 13:28

I've had similar on my 190. Bypassed the oil cooler as that was blocked by k-seal.

Still had coolant coming out of the expansion cap when sitting traffic. I had replaced the cap already, but on a hunch I switched back to the old cap and have had no issues since.

So worth checking your new expansion cap......

Cheers,

Mark S.

Danger_MouseUK · 17th July 2015, 14:12

It's worth noting that there are two different types of cap for the expansion tanks. the older black tanks came with a cap rated to 100psi? as they release excess coolant in a different way to the newer expansion tanks, which as a result came with a cap rated at 140psi?

The caps are comparable one way, backwards i think, but to the other. i.e. the older 100psi cap will not work with the newer tanks, but the 140psi caps will work with the older black tanks.

SD1too · 17th July 2015, 14:25

Quote:

Originally Posted by Danger_MouseUK

... rated to 100psi? ... rated at 140psi?

The units are kilopascals (kPa) Mike. 1 kPa = 0.145 psi so the original cap has a rating of 100 kPa = 14.5psi = approximately 1 bar.

Why we have to have so many units of pressure which mean more or less the same thing I don't know.

Simon

Danger_MouseUK · 17th July 2015, 15:36

Quote:

Originally Posted by SD1too

The units are kilopascals (kPa) Mike. 1 kPa = 0.145 psi so the original cap has a rating of 100 kPa = 14.5psi = approximately 1 bar.

Why we have to have so many units of pressure which mean more or less the same thing I don't know.

Simon

haha, thanks, yeah I pretty much took a swag (scientific wild-a** guess).

T-Cut · 17th July 2015, 16:19

Quote:

Originally Posted by Danger_MouseUK

haha, thanks, yeah I pretty much took a swag (scientific wild-a** guess).

You and Xpart too: http://www.rimmerbros.co.uk/Item--i-ESR1480

TC

17th July 2015, 14:12	#13
Danger_MouseUK Avid contributor MG ZT+ 2.5 V6 190 Join Date: Dec 2014 Location: Liverpool Posts: 101 Thanks: 5 Thanked 18 Times in 8 Posts	It's worth noting that there are two different types of cap for the expansion tanks. the older black tanks came with a cap rated to 100psi? as they release excess coolant in a different way to the newer expansion tanks, which as a result came with a cap rated at 140psi? The caps are comparable one way, backwards i think, but to the other. i.e. the older 100psi cap will not work with the newer tanks, but the 140psi caps will work with the older black tanks. __________________ [SIGPIC][/SIGPIC]

17th July 2015, 12:47	#11
errol1 Retired ZT Join Date: Nov 2014 Location: Cymru Posts: 60 Thanks: 10 Thanked 3 Times in 3 Posts	Thanks for the updates all. Will go over what I have already done to date and incorporate your advice and will report back. Feeling a little bit more optimistic!!! Cheers!

17th July 2015, 13:28	#12
Data Newbie MG ZT-T 190+ Join Date: Apr 2015 Location: Harrow Posts: 24 Thanks: 0 Thanked 7 Times in 4 Posts	I've had similar on my 190. Bypassed the oil cooler as that was blocked by k-seal. Still had coolant coming out of the expansion cap when sitting traffic. I had replaced the cap already, but on a hunch I switched back to the old cap and have had no issues since. So worth checking your new expansion cap...... Cheers, Mark S.