[TR] heater valve on block tr-3

George Richardson gpr at key-men.com
Tue Dec 5 05:51:37 MST 2017


For years I've read here about the TR3 heaters being deficient. Up until 
last year, I really couldn't tell, as I had never finished my side 
curtains. However, last year I did finish them, and used them in 
freezing weather. I learned why you need to have the sliding windows.

My heater (original) performs wonderfully.

George Richardson
Key Men - Keys for Classics
www.key-men.com

1957 Triumph TR3
1961 Jaguar Mark 2
1975 Triumph TR6
1997 Land Rover Discovery

On 12/4/2017 9:33 PM, Bill Brewer wrote:
>
> I have a Marandyne heater in my TR3. I think that I was the first 
> person to post it to the list originally.
>
> I made a new heater valve for the top of the head from fittings from 
> the local TruValue hardware store. I used a ball valve with a lever 
> handle and had to make a fitting to match the hose to the firewall 
> fitting. Has worked great for about 10 years.
>
> The major issue with my heater was the return pipe that goes from near 
> the firewall to the water pump on the driver’s side. Mine had rusted 
> solid since I had checked it last. I replaced it with a stainless 
> steel one from either TRF or Moss.
>
>      My Marandyne heater works great still. My TR3 heater was always 
> pathetic.
>
> -Bill Brewer
>
> *From:*Gary Nafziger [mailto:nafzigerg at yahoo.com]
> *Sent:* Sunday, December 3, 2017 6:00 PM
> *To:* triumphs at autox.team.net
> *Subject:* [TR] heater valve on block tr-3
>
> first wanna thank the list and specifically Randall for help with 
> starter solenoid ?.  Tested and found solenoid was bad so all is well.
>
> Just had a question for the list.  I'm just not getting as much heat 
> through the Marydane (sp) replacement heater in tr-3.  Temp guage 
> shows 185 degrees but temp through heater is warmish and I can grab 
> with my hands the heater hoses going into the heater.  Checked flow 
> and everything out and I'm pretty sure its the heater valve on the 
> block.  It's the faucet type with the green round handle.  I'm 
> thinking the inside broke loose and its closed.
>
> several years ago I bought a radiator valve of a similar type and it 
> leaked as soon as I filled the radiator.  My heater valve came from 
> the same vendor and I'm guessing they both might not be made well.
>
> Just wondered if anyone else on the list has had these valves fail.  
> I'm planning on replacing with a later valve.
>
> Thanks
>
> gary n.
>
>
>
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>
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