Anyone Installed a Moss Cockpit Controlled Heater Valve ? : MG Midget Forum : The MG Experience

Anyone Installed a Moss Cockpit Controlled Heater Valve ? #1
pmcmain Paul McMain Kokomo, IN, USA Sign in to contact 1955 MG TF 1500	Topic Creator (OP) Oct 6, 2015 07:13 PM Joined 13 years ago 1,153 Posts

It is Moss part# 635-375. I have purchased two standard shut-off valves and they leak around the stem in a year or less. I was considering a whole different valve with the added bonus of controlling inside the cockpit.

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #2
trevorwj Trevor Jessie Louisville, KY, USA Sign in to contact	Oct 6, 2015 07:33 PM Top Contributor Joined 16 years ago 6,280 Posts

Looks like a simple enough solution. I can think of a few times when I've forgotten to turn off the heat and wished that I had a remote valve. I picked up a servo-controlled unit at a swap meet for $40, but I have not yet installed it.

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #3
AmishIndy Seth Jones Glendale Heights, IL, USA Sign in to contact 1971 MG Midget MkIII "Guenevire" 2007 Mazda 3 "Porco Rosso"	Oct 6, 2015 08:43 PM Joined 13 years ago 5,849 Posts

Nope. Call me masochistic but I think the spigot on the back of the block adds to it's charm.

Seth Jones

1971 MG Midget

www.SpridgetGuru.com

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #4
1974MGMidget Jack Orkin Grayson, GA, USA Sign in to contact 1974 MG Midget MkIII	Oct 6, 2015 08:58 PM Top Contributor Joined 17 years ago 2,808 Posts

Paul, I installed a remote valve, but not the Moss unit. (Don't think it was available when I did it). I got one from NAPA for a lot less than the Moss unit - but it is plastic. Because of the tight space, I ran it around using a precurved hose. Initially, I just turned the stock valve around and used it. But, since I didn't need the original valve, a friend fabbed an outlet for me. I guess I could have made the outlet taller, like the Moss unit and could have routed it using the stock hoses. One of best things I've done - being able to turn the heat on and off from inside the car is great, but maybe not so charming!

HPIM1484.JPG 45.4 KB

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #5
Perdido Rut Rutledge Tuscaloosa, AL, USA Sign in to contact 1960 Austin-Healey Bugeye Sprite "Scarlet" 1962 Triumph TR4 1966 Triumph TR4A 1966 Triumph TR4A & more	Oct 6, 2015 09:16 PM Top Contributor Joined 16 years ago 5,263 Posts

I used this aftermarket valve on my MGB and will probably do the same on my Bugeye. I do like the look of the original brass valve, but I like convenience even more.
Rut

1960 Bugeye,1275, 5 speed
1970 MGB, Pale Primrose
1967 Triumph TR4a
1966 Triumph TR4a
When I went to school, they asked me what I wanted to be when I grew up. I wrote down 'happy'. They told me I didn't understand the assignment, and I told them they didn't understand life. John Lennon

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #6
1974MGMidget Jack Orkin Grayson, GA, USA Sign in to contact 1974 MG Midget MkIII	Oct 6, 2015 09:22 PM Top Contributor Joined 17 years ago 2,808 Posts

Rut, do you have the specifics on that valve? Make/model no.,etc.

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #7
maraud Sean K Longwood, FL, USA Sign in to contact 1978 MG Midget 1500 1979 MG MGB	Oct 6, 2015 09:30 PM Joined 8 years ago 193 Posts

Does anyone have a pic of the factory setup on a Midget 1500? All my hoses have been replaced by the P.O. and I can't find a control valve near the heater box/fan unit on mine.

Thanks!

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #8
pmcmain Paul McMain Kokomo, IN, USA Sign in to contact 1955 MG TF 1500	Topic Creator (OP) Oct 7, 2015 07:09 AM Joined 13 years ago 1,153 Posts

Thanks everyone. I do like the look of the original brass one but I don't like them to last about a year and start leaking. It would be convenient to control from the inside when the weather keeps changing like it is in Indiana currently.

The picture of the aftermarket one Rut posted looks real nice. The installation of the plastic one Jack posted also looks like it came from the factory. My main goal is to change the valve one more time then just call it 'done'.

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #9
trevorwj Trevor Jessie Louisville, KY, USA Sign in to contact	Oct 7, 2015 07:17 AM Top Contributor Joined 16 years ago 6,280 Posts

I think Jack's installation is also featuring those snazzy heat shrink clamps. Or are those something else.

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #10
S1 Elan Kurt. Appley Akron, Ia., USA Sign in to contact 1964 Lotus Elan 1965 MG Midget MkII	Oct 7, 2015 08:57 AM Top Contributor Joined 11 years ago 8,014 Posts

If you just put in "heater valve" in Ebay you will likely find several valves that will work. Everybody is complaining about the life of the current crop of English replica valves and knowing the current suppliers they are not likely to improve...think brake light switch.

Kurt.

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #11
Perdido Rut Rutledge Tuscaloosa, AL, USA Sign in to contact 1960 Austin-Healey Bugeye Sprite "Scarlet" 1962 Triumph TR4 1966 Triumph TR4A 1966 Triumph TR4A & more	Oct 7, 2015 09:17 AM Top Contributor Joined 16 years ago 5,263 Posts

I think I found it on Rockauto and most online suppliers have them. I made the mount out of 3/8" thick aluminum and just copied the original MGB valve base...I believe the threaded end is 3/8 npt.
Rut

1960 Bugeye,1275, 5 speed
1970 MGB, Pale Primrose
1967 Triumph TR4a
1966 Triumph TR4a
When I went to school, they asked me what I wanted to be when I grew up. I wrote down 'happy'. They told me I didn't understand the assignment, and I told them they didn't understand life. John Lennon

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #12
Billm Bill Masquelier Santee, CA, USA Sign in to contact 1960 MG MGA 1600 1965 MG Midget MkII 1966 Austin-Healey Sprite "Sprite" 1966 Austin-Healey Sprite "Sprite"	Oct 7, 2015 10:04 AM Top Contributor Joined 17 years ago 4,473 Posts

Do realize that the Moss unit is just an MGB heater valve mated to adapters. That valve is a known leaker from the MGB folks.
It is better than the "under the hood" valve but not much
BillM

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #13
1974MGMidget Jack Orkin Grayson, GA, USA Sign in to contact 1974 MG Midget MkIII	Oct 7, 2015 12:01 PM Top Contributor Joined 17 years ago 2,808 Posts

In reply to # 3100585 by trevorwj I think Jack's installation is also featuring those snazzy heat shrink clamps. Or are those something else.

Yes, they are - Gates PowerGrip clamps. You can get them from Moss, or your local auto parts store. The nice thing is that you don't cut your hand reaching through tight spaces with traditional SS clamps. The bad thing is they are expensive and you have to destroy them to remove them. So, don't use them on hoses you take on and off frequently!

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #14
Richb Richard Ball Everett, Wa, USA Sign in to contact 1976 MG Midget 1500	Oct 7, 2015 12:07 PM Joined 12 years ago 437 Posts

In reply to # 3100417 by maraud Does anyone have a pic of the factory setup on a Midget 1500? All my hoses have been replaced by the P.O. and I can't find a control valve near the heater box/fan unit on mine.

Thanks!

Sean,

On the 1500 you should have a valve like this mounted to the footwell just to the passenger side of the heater box.

Here is a link that shows the hose routing for a dual SU setup. Our cars are pretty much the same only with the single ZS manifold.

http://www.mgexp.com/phile/3/65139/SPMLS019A-C.gif

Rich

Rich Ball
'76 Midget
Everett, WA

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Re: Anyone Installed a Moss Cockpit Controlled Heater Valve ? #15
maraud Sean K Longwood, FL, USA Sign in to contact 1978 MG Midget 1500 1979 MG MGB	Oct 7, 2015 03:18 PM Joined 8 years ago 193 Posts

Hi Rich thanks for that. I found it - Thank you. Any idea which way is "on"? It toggles to passenger or driver side. I tell you what, I spent my first good 30 min just poking around and following all the water and vacuum hoses. This is some "mess" of rubber spaghetti!

In reply to # 3100811 by Richb

In reply to # 3100417 by maraud Does anyone have a pic of the factory setup on a Midget 1500? All my hoses have been replaced by the P.O. and I can't find a control valve near the heater box/fan unit on mine.

Thanks!

Sean,

On the 1500 you should have a valve like this mounted to the footwell just to the passenger side of the heater box.

Here is a link that shows the hose routing for a dual SU setup. Our cars are pretty much the same only with the single ZS manifold.

http://www.mgexp.com/phile/3/65139/SPMLS019A-C.gif

Rich

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