Heater Valve Mods

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Ironmanfj45

Ironmanfj45

10 Year 15 Year
Joined
Jun 2, 2006
Threads
10
Messages
201
Location
So. Cal
Hi,

Please review the picture showing how the last owner fixed the Heater Valve.

HeaterValve-sm.webp

I think that this valve is for a FJ40 with a rear heater. I am wondering if any of you fixed something like this by soldering a brass cap to the ends of the hose nipples.

I have seen this at Specter but it looks like they are rubber plugs.

HeaterValvePlugs.gif

If any of you have used this approach please let me know if it worked well for you.

Cheers,

Jim
HeaterValve-sm.webp
HeaterValvePlugs.gif
 
Like you stated those are later fj40 heater pipes for about 73 and later. the two extra nipples are for the rear heater. not present in FJ45's...

I HIGHLY recommend getting the OEM toyota heater nipple caps if you choose that option. (or soldering on a copper pipe cap), so not sure what specter is going to send you. the aftermarket ones suck. I replaced probably 3 or four over the years on my fj55 I took the rear heater out of. for some reason the made in China ones from the parts stores suck. OEM toyota ones are going on 4 or so years and still look new.

you dont want that spraying coolant in the cab. My Fj55 has a shield to deflect any spray...
 
"My Fj55 has a shield to deflect any spray"

That sounds like a good idea. I would hate a bath in coolant. Thanks for the advice on the OEM plug. I am not sure if I want to ever worry about the rubber failing so I am going to check out some sort of copper cap like what would be used in household plumbing or a small freeze plug.

Cheers,

Jim
 
Good info. I didn't know that there were metal tubing there. Now I know. This will be helpful for my build.
 
Whatever you do, don't leave it like that.

When the heater valve is opened, you could get all of the coolant flowing through that little bypass tube putting hot coolant back into the block where it is supposed to be cooled by the heater core.

My faux-lux had a similar issue. It could overheat itself rather easily until I figured out that was what was happening.

Dan
 
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