16v Mini Club Forums  

Go Back   16v Mini Club Forums > General Public Area > Rover Chat

Reply
 
Thread Tools Display Modes
Old 25-02-2017, 06:20 PM   #1
gandolf
Member
 
Join Date: Jan 2011
Location: north cornwall
Posts: 94
Subframe: Home Made
CC: 1600
Make: Rover
ECU: standard ECU
Send a message via Yahoo to gandolf
Default radiator pressure

I've fitted a new 2 core alloy rad to my 1600 .Question is do I remove the pressure seal and spring and leave only the lid seal so the normal pressure expands coolant straight off to expansion tank. Lid is marked 1.1. Thanks for any help.
gandolf is offline   Reply With Quote
Old 25-02-2017, 07:45 PM   #2
geachy87
Senior Member
 
geachy87's Avatar
 
Join Date: Apr 2013
Location: Campbeltown, Scotland
Posts: 427
Subframe: Watson
CC: 1.8t
Make: Rover
ECU: Kmaps
Default

That's what I've done on mine, you can get caps without the spring but I didn't see a problem with just removing it from the one I had.
Mines a vvc so I joined the pipe with a t piece together with the hose from the manifold then into the expansion tank, not sure if the 1.6 has a hose from the manifold or not?

Last edited by geachy87; 25-02-2017 at 07:47 PM.
geachy87 is offline   Reply With Quote
Old 25-02-2017, 07:48 PM   #3
AGoaty
Senior Member
 
AGoaty's Avatar
 
Join Date: Oct 2008
Location: Keighley, West Yorkshire
Posts: 2,633
Subframe: Watson
CC: 1796
Make: Rover
ECU: Standard
Default

Assuming it's a standard Mini radiator cap then you want this.

http://www.moss-europe.co.uk/cap-rad...ng-grc126.html

If you use a spring loaded cap then you'll not bleed the system.

Other stuff to help bleeding is extra holes in the thermostat and remove the "jiggle valve" from the inlet manifold.

All the engines sizes and variants are the same piping so no differences there.
__________________
If tha does owt fo nowt, olas do it fo this 'en.

Last edited by AGoaty; 25-02-2017 at 07:53 PM.
AGoaty is offline   Reply With Quote
Old 25-02-2017, 08:21 PM   #4
geachy87
Senior Member
 
geachy87's Avatar
 
Join Date: Apr 2013
Location: Campbeltown, Scotland
Posts: 427
Subframe: Watson
CC: 1.8t
Make: Rover
ECU: Kmaps
Default

He doesn't exactly need that though, removing the spring from the cap he has will do the exact same job
geachy87 is offline   Reply With Quote
Old 26-10-2017, 08:45 PM   #5
ZA-J
Senior Member
 
Join Date: Jan 2017
Location: Berkshire
Posts: 121
Subframe: Home Made
CC: 1796
Make: Rover
ECU: Standard
Default

Sorry for slight hijack, but I assume if removing the spring from the Mini rad, you then plumb the mini overflow into the K series lines? Not sure whether to just plug mine?
ZA-J is offline   Reply With Quote
Old 27-10-2017, 01:05 AM   #6
AGoaty
Senior Member
 
AGoaty's Avatar
 
Join Date: Oct 2008
Location: Keighley, West Yorkshire
Posts: 2,633
Subframe: Watson
CC: 1796
Make: Rover
ECU: Standard
Default

You Tee it into the pipe going from the intake manifold and the expansion tank. This is how the standard setup works. You can use the Tee piece fitting from all any of these cars.

This also helps with filling and bleeding the coolant.

Last edited by AGoaty; 27-10-2017 at 01:10 AM.
AGoaty is offline   Reply With Quote
Old 27-10-2017, 06:34 AM   #7
ZA-J
Senior Member
 
Join Date: Jan 2017
Location: Berkshire
Posts: 121
Subframe: Home Made
CC: 1796
Make: Rover
ECU: Standard
Default

Ok, thanks. Does that mean I don't need the mg fitting in the top hose which tees into the same header tank line?
ZA-J is offline   Reply With Quote
Old 27-10-2017, 10:51 AM   #8
AGoaty
Senior Member
 
AGoaty's Avatar
 
Join Date: Oct 2008
Location: Keighley, West Yorkshire
Posts: 2,633
Subframe: Watson
CC: 1796
Make: Rover
ECU: Standard
Default

EDIT. If it is the connection on a ZR then you won't need that. A ZS has it built into the radiator. Why they had to be different is just Rover being awkward.

The small pipe needs to be kept on a more or less level plain around the engine bay. I had problems with mine when I allowed it to drop below the top of engine. It wouldn't circulate properly.
__________________
If tha does owt fo nowt, olas do it fo this 'en.

Last edited by AGoaty; 28-10-2017 at 05:28 AM.
AGoaty is offline   Reply With Quote
Old 27-10-2017, 07:07 PM   #9
ZA-J
Senior Member
 
Join Date: Jan 2017
Location: Berkshire
Posts: 121
Subframe: Home Made
CC: 1796
Make: Rover
ECU: Standard
Default

Perfect, thanks.
ZA-J is offline   Reply With Quote
Old 28-10-2017, 06:36 PM   #10
twincamtone
Member
 
twincamtone's Avatar
 
Join Date: Feb 2017
Location: Cornwall
Posts: 55
Subframe: Home Made
CC: 1796
Make: Rover
ECU: Standard MEMS3
Default

Quote:
Originally Posted by gandolf View Post
I've fitted a new 2 core alloy rad to my 1600 .Question is do I remove the pressure seal and spring and leave only the lid seal so the normal pressure expands coolant straight off to expansion tank. Lid is marked 1.1. Thanks for any help.
Does your alloy rad have a big or small cap? I have a new stainless cap (without spring) here, but it won't fit my alloy rad with the smaller type cap, so you're welcome to it if you want it.
twincamtone is offline   Reply With Quote
Old 30-10-2017, 10:01 PM   #11
ZA-J
Senior Member
 
Join Date: Jan 2017
Location: Berkshire
Posts: 121
Subframe: Home Made
CC: 1796
Make: Rover
ECU: Standard
Default

Quote:
Originally Posted by AGoaty View Post
EDIT. If it is the connection on a ZR then you won't need that. A ZS has it built into the radiator. Why they had to be different is just Rover being awkward.

The small pipe needs to be kept on a more or less level plain around the engine bay. I had problems with mine when I allowed it to drop below the top of engine. It wouldn't circulate properly.
Yes, ZR top hose (actually going to use Rover 25 top hose fitting from the scrappy as it fits easier) with 8mm takeoff for header tank. So I can blank the Mini rad takeoff?
ZA-J is offline   Reply With Quote
Old 31-10-2017, 03:08 AM   #12
AGoaty
Senior Member
 
AGoaty's Avatar
 
Join Date: Oct 2008
Location: Keighley, West Yorkshire
Posts: 2,633
Subframe: Watson
CC: 1796
Make: Rover
ECU: Standard
Default

Use which ever is the highest point.
__________________
If tha does owt fo nowt, olas do it fo this 'en.
AGoaty 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 12:36 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.