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Removing the Heater
https://www.ausmini.com/forums/viewtopic.php?f=2&t=6946		 Page 1 of 1
Author:  Simple [ Fri May 06, 2005 1:22 pm ]
Post subject:  Removing the Heater
My heater has not worked since I got the car almost 12 months ago (Leyland mini, daily driver), so I thought this weekend would be a good time to take it out and figure out what is wrong with it.... So my question is..

How do I remove it?

Cheers
Author:  J_A_M [ Fri May 06, 2005 1:39 pm ]
Post subject: 
there are 2 bolts on the side/behind it, and one bolt on top. These hold it to the firewall and under side of your dash.

Plus there are 2 coolant hoses and 2 operating cables to remove from it. 1 power wire too I think.

Just stick ya head under and you will see everything that needs to be undone/removed.

I reckon they are the ugliest designed heaters to ever grace an Australian car! :x
Author:  Simple [ Fri May 06, 2005 2:29 pm ]
Post subject: 
If I unplug the coolant hoses I can expect some water (if not blocked further up) How would I block these hoses off?
Author:  EST-071 [ Fri May 06, 2005 2:35 pm ]
Post subject: 
Undo them at the motor then blow the water/coolant through so that heater is empty then take them off at the heater.
Pete
Author:  Simple [ Fri May 06, 2005 2:40 pm ]
Post subject: 
What about if I want to continue to drive the car with the heater removed? How do I block these hoses and pipes?

Sorry for the silly questions.
Author:  J_A_M [ Fri May 06, 2005 2:45 pm ]
Post subject: 
loop it....so the 2 hoses that come into the cabin bypass the heater...u know....dont connect them to the heater, but rather use 1 hose in a loop installation.

:wink:
Author:  Simple [ Fri May 06, 2005 2:49 pm ]
Post subject: 
Got cha :wink:

Cheers

Got my first wings with this post...... (It is exciting for me)
Author:  68matic [ Fri May 06, 2005 2:50 pm ]
Post subject: 
you can get plates made or make them yourself.
gasket it up and do up the nuts
Author:  awdmoke [ Fri May 06, 2005 3:06 pm ]
Post subject: 
Before going to all the trouble of taking it out, try this:

undo both heater hoses at the motor
using a hose fitting (or a bit of copper pipe) & clips, attach your garden hose to one of the hoses
turn the heater on (open valve manually if cable is broken)
turn the hose tap on

I've found this clears most blockages. Also try flushing from the other hose (reverse flush). If this doesn't work, you will probably need to remove the heater & replace the core. Good luck :)
Author:  Morris 1100 [ Fri May 06, 2005 7:13 pm ]
Post subject: 
I agree. :wink:
Flush first.
Pull out later.

Check that the cables are actually doing their jobs and not broken or disconnected.

The heater in my 1275LS was great. In winter the inside of the car used to get too hot after about 5 minutes and you had to turn the heater down. If your heater dosen't get the car hot then it needs flushing.

If flushing does not fix it the heater core may need "rodding out" or replacing.

"Rodding out" means pulling one tank off the heater core and poking special rods down the inside of the core to clean out the passages.
Author:  drmini in aust [ Fri May 06, 2005 7:24 pm ]
Post subject: 
Don't make any `hard' connections from the garden hose to the heater plumbing. Mains water pressure can be up to 1,000KPa (~150psi). Plenty to blow the heater core and make quite a mess.... :?
Author:  awdmoke [ Mon May 09, 2005 12:12 pm ]
Post subject: 
Aint blown one yet - just lucky I guess :wink:
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