Heater valve !
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Heater valve !
Hi all, can I change the cable operated heater valve on my 1970 saloon to an older brass tap type ? The reason I ask is that I’ve a fairly new cable operated one and it’s leaking already! They don’t appear to be to well made by the look of it? Thanks Matt
Re: Heater valve !
You are correct that new heater valves have been a problem for quite a while, but ESM claim to have overcome this issue. See their newsletter: https://www.morrisminorspares.com/newsletter/preview/22
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- Minor Legend
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Re: Heater valve !
In answer to your question though, yes you can
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Re: Heater valve !
I have one that works fine. i'll get a picture.
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Re: Heater valve !
it works fine
Re: Heater valve !
Thanks all, mine came from the fore mentioned and is only 6 months old. I'll get myself a brass tap type I think, I had the same problem with a series 2A Land Rover one if I remember correctly and changed it out for a brass tap type. Thanks again matt
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- Minor Fan
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Re: Heater valve !
I fitted a bonded seal washer between the brass tap and the base plate, this allow the tap to be rotated into the correct position on the threaded base plate.
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Re: Heater valve !
Hi,I fitted a bonded seal washer between the brass tap and the base plate, this allow the tap to be rotated into the correct position on the threaded base plate.
What size washer did you use?
Many thanks,
Mike.
1954 Series 2: 4 door: "Sally" -- Back on the ground with (slave) wheels and waiting to be resprayed......
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
Re: Heater valve !
I see the available brass taps are a sealed unit also, I may just go with the stub pipe instead, constant heater but no chance of a leak ?
Re: Heater valve !
Hopefully the new ESM valves will provide a reliable replacement - the quality of replacement heater valves is a regular topic on Mini forums. An alternative is to fit an inline valve like the one below which I believe are more reliable - sometimes fitted to Midgets which didn't have heater control as standard.
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- Minor Fan
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Re: Heater valve !
Morning Mike
I can't remember the size but you just need to measure the threaded part of the tap. Have a look at
https://simplybearings.co.uk/shop/produ ... tEQAvD_BwE they do them in all different sizes.
You don't tighten them up really tight, just so that the tap body and baseplate nip the rubber seal.
I can't remember the size but you just need to measure the threaded part of the tap. Have a look at
https://simplybearings.co.uk/shop/produ ... tEQAvD_BwE they do them in all different sizes.
You don't tighten them up really tight, just so that the tap body and baseplate nip the rubber seal.
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- Minor Legend
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Re: Heater valve !
Thanks Paul.I can't remember the size but you just need to measure the threaded part of the tap. Have a look at
https://simplybearings.co.uk/shop/produ ... tEQAvD_BwE they do them in all different sizes.
You don't tighten them up really tight, just so that the tap body and baseplate nip the rubber seal.
1954 Series 2: 4 door: "Sally" -- Back on the ground with (slave) wheels and waiting to be resprayed......
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
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- Minor Maniac
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Re: Heater valve !
I would suggest that a 'Dowty' seal would be no good as a seal between the tap and the base due to the indentations in the base of the ESM tap.
https://www.morrisminorspares.com/cooli ... e-p1238127
A soft copper washer which is a reasonably close fit over the tap threads with some Loctite seal and lock smeared on the tap threads would be a much better option
https://www.morrisminorspares.com/cooli ... e-p1238127
A soft copper washer which is a reasonably close fit over the tap threads with some Loctite seal and lock smeared on the tap threads would be a much better option
Re: Heater valve !
. Would something like this be ok to replace valve with ?
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- Minor Maniac
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Re: Heater valve !
Yes
That is exactly what I have on my Minor cylinder head. I do not have a heater - the coolant just circulates back to the radiator for re-circulation
The outlet I suspect is 16mm so you will need a reducer pipe from 16mm to 13mm which is easily obtained from 'e' bay. The reducers come in straight or 90 degrees.
These are the type of reducers I use
https://www.ebay.co.uk/itm/Hose-Joiner- ... Ev5BFD6V0w
That is exactly what I have on my Minor cylinder head. I do not have a heater - the coolant just circulates back to the radiator for re-circulation
The outlet I suspect is 16mm so you will need a reducer pipe from 16mm to 13mm which is easily obtained from 'e' bay. The reducers come in straight or 90 degrees.
These are the type of reducers I use
https://www.ebay.co.uk/itm/Hose-Joiner- ... Ev5BFD6V0w
Last edited by philthehill on Sun Feb 09, 2020 4:51 pm, edited 1 time in total.
Re: Heater valve !
Thanks Phil, would that be a metal reducer with just a piece of 16mm hose between the take off and reducer?
Re: Heater valve !
Or guess I could use a rubber reducer with 13mm pipe between reducer and heater hose Which would be best?
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- Minor Maniac
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Re: Heater valve !
The reducers are plastic and are well suitable for purpose.
For coupling up to the 1/2" Minor heater hose one side of the reducer is fitted into the 1/2" hose and the other end mated to the heater outlet by a short length of 16mm hose.
For coupling up to the 1/2" Minor heater hose one side of the reducer is fitted into the 1/2" hose and the other end mated to the heater outlet by a short length of 16mm hose.
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- Minor Fan
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Re: Heater valve !
As an alternative I have fitted a 3 way valve inline to the heater. I use the 5/8 outlet from the block into a 3 way valve. This either feeds the heater or if closed keeps the water circulating back to the block.
It's worked OK for a couple of years now. The one I bought was for a London taxi.
It's worked OK for a couple of years now. The one I bought was for a London taxi.
Re: Heater valve !
Thanks again Phil, could you point me towards a suitable coupling? Would I use hose clips to connect?