Water Pressure - Page 2

marinabrian · 15th November 2016, 19:02

It sounds like the fire rings have been breached and there is exhaust gas in the coolant to me

Brian

T-Cut · 15th November 2016, 19:08

Quote:

Originally Posted by marinabrian

It sounds like the fire rings have been breached and there is exhaust gas in the coolant to me

Agreed, but I was breaking it to him slowly.

TC

marinabrian · 15th November 2016, 20:17

Quote:

Originally Posted by T-Cut

Agreed, but I was breaking it to him slowly.

TC

Unfortunately the nettle needs to be grasped at some point I suppose TC

I would suggest the best cause of action to eliminate or confirm the head gasket has failed is to have a "sniff" test or a telltale dye added to the coolant.

As an aside, with the IPK in diagnostic mode you can time from stone cold the period between start up and the engine reaching 88 degrees at idle.

If less than between eight and ten minutes, then this suggests the coolant is being superheated with escaping compression gasses.

The OP may also like to see if the low speed fan is operational

Brian

T-Cut · 15th November 2016, 21:20

Quote:

Originally Posted by marinabrian

Unfortunately the nettle needs to be grasped at some point I suppose TC

Guess so, but HGF and less than a dozen posts is a real baptism of fire! Hope the OP isn't scared off!

TC

wkb666 · 18th November 2016, 19:22

Evening all. . Just got back from bleeding the system again as per link and took the car for a run
Drove fine no heating issues, got back poped bonnet and again pipes are rock hard and about to burst!! Can't see any coolant leaking out ..........

T-Cut · 18th November 2016, 20:02

The symptoms are suggesting that the head gasket has failed.
It looks like the pressurisation of the cooling system is due to exhaust gas being pumped in.
There are tests you can do to home in on the diagnosis.
1. Residual cold pressurisation
With engine stone cold, open header tank cap and check/adjust coolant to the MAX level.
replace cap firmly and drive car normally for at least ten miles at speeds up to 70mph.
Park the car and leave it untouched overnight.
Next morning unscrew the pressure cap and listen for any release of pressure.
If there's a distinct hiss, then the head gasket has failed.
A lack of pressure doesn't mean anything significant but is preferable.

2. Have the coolant tested for exhaust gas.This is sometimes refered to as a sniff test but any garage should have the gear to do it. Alternatively there are test kits on Bay.

Good luck.

TC

wkb666 · 19th November 2016, 12:31

Do you have any recommendations for head gasket mechanics, I am just outside Ashby De La Zouch.
Thanks for all your help.

SD1too · 19th November 2016, 12:39

Other forum members give good reports to Austin Garages who are somewhere in the Derby/Burton area.

Simon

Bobon · 19th November 2016, 22:26

Quote:

Originally Posted by wkb666

Do you have any recommendations for head gasket mechanics, I am just outside Ashby De La Zouch.
Thanks for all your help.

I can recommend Jon Norris he did my TF a few months back.Really nice guy and his prices are very competative.If my ZT needed doing he's the first person I would call.
http://www.roughluckracing.com/

18th November 2016, 20:02	#16
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,754 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	The symptoms are suggesting that the head gasket has failed. It looks like the pressurisation of the cooling system is due to exhaust gas being pumped in. There are tests you can do to home in on the diagnosis. 1. Residual cold pressurisation With engine stone cold, open header tank cap and check/adjust coolant to the MAX level. replace cap firmly and drive car normally for at least ten miles at speeds up to 70mph. Park the car and leave it untouched overnight. Next morning unscrew the pressure cap and listen for any release of pressure. If there's a distinct hiss, then the head gasket has failed. A lack of pressure doesn't mean anything significant but is preferable. 2. Have the coolant tested for exhaust gas.This is sometimes refered to as a sniff test but any garage should have the gear to do it. Alternatively there are test kits on Bay. Good luck. TC Last edited by T-Cut; 18th November 2016 at 20:04..

19th November 2016, 12:39	#18
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,668 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Other forum members give good reports to Austin Garages who are somewhere in the Derby/Burton area. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

15th November 2016, 19:02	#11
marinabrian MG ZT Join Date: Jan 2011 Location: Newcastle Upon Tyne Posts: 20,151 Thanks: 3,565 Thanked 10,837 Times in 5,718 Posts	It sounds like the fire rings have been breached and there is exhaust gas in the coolant to me Brian

18th November 2016, 19:22	#15
wkb666 Newbie ZT Join Date: Oct 2013 Location: Swadlincote Posts: 13 Thanks: 0 Thanked 1 Time in 1 Post	Evening all. . Just got back from bleeding the system again as per link and took the car for a run Drove fine no heating issues, got back poped bonnet and again pipes are rock hard and about to burst!! Can't see any coolant leaking out ..........

19th November 2016, 12:31	#17
wkb666 Newbie ZT Join Date: Oct 2013 Location: Swadlincote Posts: 13 Thanks: 0 Thanked 1 Time in 1 Post	Do you have any recommendations for head gasket mechanics, I am just outside Ashby De La Zouch. Thanks for all your help.