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 Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 20th March 2014, 19:25   #1
Simon.h
This is my second home
 
Previously owned- MG ZT V6 160 Y plate Lpg, MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg MG

Join Date: Mar 2010
Location: Calne
Posts: 4,531
Thanks: 8
Thanked 116 Times in 108 Posts
Default Head Gasket- MLS or Elastomeric

Hi all,
I been reading up on which HG I should use on a K-series engine. Its leaking coolant from the front and gearbox end, theres no oil/coolant mix and its not overheating and still running 100%.
I understand if all the liners are 0.003-0.0004" proud and even above the bock then I use a MLS gasket. If the liners are lower than 0.003 but still even I use a Elastomeric one.
And if the liners are uneven I've got problems!

Can anyone confirm my thinking?
Thanks.
__________________
Previously owned-
MG ZT V6 160 Y plate Lpg,
MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg
MG ZT 190 2004 lpg
Simon.h is offline   Reply With Quote
Old 20th March 2014, 19:58   #2
beinet1
Posted a thing or two
 
Rover 75 2.0 V6 Auto

Join Date: May 2011
Location: Sandnes - Norway
Posts: 1,560
Thanks: 64
Thanked 283 Times in 174 Posts
Default

Payen BW750 + 0,5mm head saver shim (Optional)

Take a look here:

http://www.the75andztclub.co.uk/foru...d.php?t=137958
http://forums.mg-rover.org/showthread.php?t=406154
beinet1 is offline   Reply With Quote
Old 20th March 2014, 20:10   #3
Simon.h
This is my second home
 
Previously owned- MG ZT V6 160 Y plate Lpg, MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg MG

Join Date: Mar 2010
Location: Calne
Posts: 4,531
Thanks: 8
Thanked 116 Times in 108 Posts
Default

Quote:
Originally Posted by beinet1 View Post
Thanks beinet1, I have been reading all your threads over the last few hours! And now more wiser!
__________________
Previously owned-
MG ZT V6 160 Y plate Lpg,
MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg
MG ZT 190 2004 lpg
Simon.h is offline   Reply With Quote
Old 20th March 2014, 20:49   #4
beinet1
Posted a thing or two
 
Rover 75 2.0 V6 Auto

Join Date: May 2011
Location: Sandnes - Norway
Posts: 1,560
Thanks: 64
Thanked 283 Times in 174 Posts
Default

Quote:
Originally Posted by Simon.h View Post
Thanks beinet1, I have been reading all your threads over the last few hours! And now more wiser!
Hi Simon,

Thanks for that

The issue is complicated and could be discussed for days...

By experience, it seems to me that combining the the Payen BW750 gasket together with a 0,5mm saver shim, is a very good solution which a have used a few times and seems to be working very well. This combination have the following strong properties:
- Elastomer gives a 100% tight fluid seal
- The elastomer gasket is less tolerant for liner heights
- The saver shim eliminates potential seal problems related to cylinder head porosity
- The saver shim (partly) eliminates potential fire ring indentation.
beinet1 is offline   Reply With Quote
Old 21st March 2014, 10:14   #5
Simon.h
This is my second home
 
Previously owned- MG ZT V6 160 Y plate Lpg, MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg MG

Join Date: Mar 2010
Location: Calne
Posts: 4,531
Thanks: 8
Thanked 116 Times in 108 Posts
Default

Has anyone else got any views on this?
__________________
Previously owned-
MG ZT V6 160 Y plate Lpg,
MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg
MG ZT 190 2004 lpg
Simon.h is offline   Reply With Quote
Old 21st March 2014, 11:42   #6
beinet1
Posted a thing or two
 
Rover 75 2.0 V6 Auto

Join Date: May 2011
Location: Sandnes - Norway
Posts: 1,560
Thanks: 64
Thanked 283 Times in 174 Posts
Default

You might be opening a can of worms now...
beinet1 is offline   Reply With Quote
Old 21st March 2014, 12:14   #7
Simon.h
This is my second home
 
Previously owned- MG ZT V6 160 Y plate Lpg, MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg MG

Join Date: Mar 2010
Location: Calne
Posts: 4,531
Thanks: 8
Thanked 116 Times in 108 Posts
Default

Quote:
Originally Posted by beinet1 View Post
You might be opening a can of worms now...
Sometimes I just can't help myself!
__________________
Previously owned-
MG ZT V6 160 Y plate Lpg,
MG ZT 190 2003 In Rare Celestial Factory Ordered Lpg
MG ZT 190 2004 lpg
Simon.h is offline   Reply With Quote
Old 21st March 2014, 15:00   #8
alanw
Avid contributor
 
alanw's Avatar
 
mg zt t

Join Date: Jun 2012
Location: Alnwick
Posts: 129
Thanks: 1
Thanked 0 Times in 0 Posts
Default

Quote:
Originally Posted by beinet1 View Post
You might be opening a can of worms now...
Simon all you will get is different experiences & opinions. I hesitated giving you mine on your other post.

The consensus I found agrees with your findings, although 0.002" > 0.004"

My liners were even height with each other, but anywhere from way less than 1 thou to over 2 thou. I set mine at 0.003 by linishing the block. I was advised to always have the head skimmed, use MLS & fit the uprated oil ladder.
I used a "highly rated latest" Victor Reinz gasket set. but if I do it again I will use genuine Land Rover as the Victor Reinz inlet manifold seal gave up after 200ish miles, worrying !. + all genuine, water pump. tensioner, belts head bolts etc. How ever you choose to do it Good luck. Alan
__________________
A verbal agreement isn't worth the paper it's written on !

I wouldn't join any club that would have me as a member.
alanw is offline   Reply With Quote
Old 7th November 2021, 14:06   #9
gnu
Gets stuck in
 
gnu's Avatar
 
MG ZT

Join Date: Apr 2018
Location: Bristol
Posts: 684
Thanks: 332
Thanked 164 Times in 133 Posts
Default

Quote:
Originally Posted by Pop Alexandra View Post
What did you eventually choose and did it meet your expectations? I'm asking because I'm inclined to go with an elastomeric membrane and I'm looking for input.
Absolutely not
__________________
gnu
gnu is offline   Reply With Quote
Old 7th November 2021, 19:40   #10
sworks
Been absent for a while…
 
sworks's Avatar
 
Rover 75 Tourer, Classic mini Cooper S, Abarth 595 competizione, MG TF and a Hyundai Tucson PHEV

Join Date: Feb 2007
Location: Cumbria
Posts: 13,057
Thanks: 1,033
Thanked 1,686 Times in 1,040 Posts
Default

Another vote for the Payen BW750, I use these even if the liner heights are ok.
__________________
.................................................

'Marmite' Possibly one of the most famous 75 tourers produced! left the production line as the last of only Three Rover 75 tourers produced in Trophy Yellow. 48 hours later Longbridge closed. The last sold ordered 75 Tourer. Paid for by the Phoenix Four and handed over by John Towers to the Warwickshire Northampton Air ambulance service as a Rapid Response vehicle
sworks 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. The time now is 01:28.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd