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 Post subject: Removing the Heater
PostPosted: Fri May 06, 2005 1:22 pm 
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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

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 Post subject:
PostPosted: Fri May 06, 2005 1:39 pm 
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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


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 Post subject:
PostPosted: Fri May 06, 2005 2:29 pm 
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If I unplug the coolant hoses I can expect some water (if not blocked further up) How would I block these hoses off?

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Daily Driver - Yellow Devil 76 Clubman
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 Post subject:
PostPosted: Fri May 06, 2005 2:35 pm 
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Undo them at the motor then blow the water/coolant through so that heater is empty then take them off at the heater.
Pete

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 Post subject:
PostPosted: Fri May 06, 2005 2:40 pm 
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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.

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Daily Driver - Yellow Devil 76 Clubman
Restoration Project - Primer grey 66 Morris Mini Deluxe


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 Post subject:
PostPosted: Fri May 06, 2005 2:45 pm 
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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:


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 Post subject:
PostPosted: Fri May 06, 2005 2:49 pm 
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Got cha :wink:

Cheers

Got my first wings with this post...... (It is exciting for me)

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Daily Driver - Yellow Devil 76 Clubman
Restoration Project - Primer grey 66 Morris Mini Deluxe


Last edited by Simple on Fri May 06, 2005 2:51 pm, edited 1 time in total.

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 Post subject:
PostPosted: Fri May 06, 2005 2:50 pm 
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Location: cabramatta sydney
you can get plates made or make them yourself.
gasket it up and do up the nuts

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 Post subject:
PostPosted: Fri May 06, 2005 3:06 pm 
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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 :)

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 Post subject:
PostPosted: Fri May 06, 2005 7:13 pm 
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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.


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 Post subject:
PostPosted: Fri May 06, 2005 7:24 pm 
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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.... :?

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 Post subject:
PostPosted: Mon May 09, 2005 12:12 pm 
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Aint blown one yet - just lucky I guess :wink:

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