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Removing My Heater
#1
Posted 29 December 2021 - 09:38 PM
The two hoses that go through to the heater, do I just connect those two together?
Regards
MB
#2
Posted 29 December 2021 - 09:49 PM
#3
Posted 29 December 2021 - 09:59 PM
Does it cause any cooling issues if you feed the hot water from the end of the head back into the block without being cooled? I’d heard that you should feed it back into the thermostat housing/top hose?
#4
Posted 29 December 2021 - 10:40 PM
Not sure it'd flow much if you did that.
The radiator will have a particular capacity to dump heat, feeding in hotter water to the water that's already been through it won't alter that. In fact if you could get the flow high enough so the water leaving the radiator is as hot as the water entering it, that would give you the maximum potential to transfer heat in to the air going through the radiator core.
You could link the redundant hose ends with a length of copper pipe with a valve in it if you really wanted to experiment to find the optimum flow.
#5
Posted 29 December 2021 - 11:23 PM
The bottom hose can still be bought and the blank could be easily made from approx 2 to 3 mm plate.
Edit: the plate can be bought for £3.50 inc gasket.
https://www.ebay.com...tm/381700844362
Edited by Tds76, 29 December 2021 - 11:30 PM.
#6
Posted 29 December 2021 - 11:36 PM
I would leave the heater connected as the extra water volume will help you in the hotter climate.
but as to connecting the hoses sure it is no different to what Rover did on the MPi for when you turned off the heat.
people will say you should plumb the hose into the top hose rather than the bottom hose so that it gets cooled. But it is being added to the cooled water and it is a closed system I don’t see the issue. One point I have seen is people talk about putting a restriction in the hose so that not too much coolant can pass that way.
#7
Posted 30 December 2021 - 05:21 AM
Is there anything I can do to counter act the hot into cold. Mind you I’m brand new to fixing my own mini and I’m leaning on the go on an island that doesn’t even know what I’m driving!
#8
Posted 30 December 2021 - 11:23 AM
There are many times in all the years I have had various Minis where it has been necessary to put the heater on to increase engine cooling on a hot day in traffic in the UK (with all the windows opened!). Be sure this won't be an issue in your climate before discarding the heater matrix which is effectively a small additional radiator. Maybe fit an additional electric fan under the wheel arch as on later Minis if you don't already have one.
Edited by mab01uk, 30 December 2021 - 11:25 AM.
#9
Posted 30 December 2021 - 12:12 PM
Why noy experiment before removing it.
The heater matrix doesn't make a good external radiator, the vanes are very fine & easily blocked or bent. You could find a bike radiator or oil cooler instead, but overheating is usually down to insufficient airflow at low speeds, so an extra electric fan is likely to be more use.
#10
Posted 01 January 2022 - 04:34 AM
Win Win.
Edited by Steam, 01 January 2022 - 04:35 AM.
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