Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Search Today's Posts Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 14th August 2019, 19:00   #11
SD1too
Doesn't do things by halves
 
SD1too's Avatar
 
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Rover 3500 Vanden Plas (1984).

Join Date: Mar 2007
Location: Middlesex
Posts: 15,892
Thanks: 835
Thanked 2,477 Times in 2,143 Posts
Exclamation Caution

Quote:
Originally Posted by Matt70 View Post
... the mechanic diagnosed HGF it's easy to proove using a special instrument ...
Matt's car overheated. He was advised to first check his radiator fan but he chose not to. Against the advice of every member who replied to his thread, he put Steel Seal into his cooling system based only upon a mechanic's highly controversial diagnosis.

The KV6's gaskets are not susceptible to spontaneous failure. I would never place total faith in a mysterious liquid which changes colour without firm supporting symptoms and Matt didn't have any.

Simon
__________________
"Whatever is rightly done, however humble, is noble."
Sir Henry Royce.
SD1too is offline   Reply With Quote
Old 15th August 2019, 21:56   #12
Mr Toad
V8 Enthusiast
 
Rover 75 V8 tourer & MG ZTT & MG RV8

Join Date: Apr 2007
Location: London
Posts: 34
Thanks: 2
Thanked 5 Times in 2 Posts
Default

Thanks Simon. The evidence may be the mayo in the cap although this may be due to the fact that the car is not being used much. The thermostat was very carefully replaced and yes the two clips on the straight pipe were pushed right up either end.

I left the cover off for a couple of weeks to inspect the v periodically and there has been absolutely no leak.

I thought that the expansion tank cap has three seals. Is it sufficient just to change 2?

As a last ditch attempt to avoid having to lift the heads I am going to drain the coolant, reconnect the oil cooler, sort out the expansion tank cap and then carefully refill the system as recommended by MGR. If it then continues to leak the heads are going to be removed as I can't put up with a car that leaks coolant.

I will keep you posted!!!

Martin
Mr Toad is offline   Reply With Quote
Old 16th August 2019, 08:59   #13
SD1too
Doesn't do things by halves
 
SD1too's Avatar
 
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Rover 3500 Vanden Plas (1984).

Join Date: Mar 2007
Location: Middlesex
Posts: 15,892
Thanks: 835
Thanked 2,477 Times in 2,143 Posts
Default

Quote:
Originally Posted by Mr Toad View Post
I am going to drain the coolant, reconnect the oil cooler, sort out the expansion tank cap and then carefully refill the system as recommended by MGR.


When I renewed the two 'O' ring seals on my expansion cap it cured the varying coolant level.

When you drain, don't forget the LH bank cylinder block plug.

Simon
__________________
"Whatever is rightly done, however humble, is noble."
Sir Henry Royce.
SD1too is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 07:01.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright © 2006-2019, The Rover 75 & MG ZT Owners Club Ltd