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Heater valve

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Crisis

Jedi Hopeful
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I should have left well enough alone! Getting into the cooler season I thought I would flush the cooling system and change the coolant over the weekend, big mistake. Ever since, the heater valve has been leaking profusely. Anyone had any experience with this? Did I dislodge something? Do I need to replace or can they be repaired? Leak is not at the fitting on the head but from the unit itself.
Thanks.
 
I imagine it is leaking from the valve itself? My TR6 did not come with one, the PO decided to bypass the heater core with plumbing pipe, so after spending $30 on a new one from VB/Moss, I was in business. For about a year then it started to leak.

It was an easy and cheap fix. Pull the valve and bend the ears open slightly that clamp the two parts together. Once open you will find a rubber diaphram, probably torn. Go to the hardware store and find something similiar. I think I got mine from a toilet flush repair kit, going on 7 years on the fix and everything is good.

Anyway, get the diaphram bigger than you need so that you can trim it down to fit exactly, then seal the diaphram to the valve with some sort of high temp silicone sealant.

Re-assemble the valve and crimp the ears back down and you are done. Be careful to bend the ears as little as possible to avoid metal fatigue.

Good Luck
 
They only cost $25 + SH. Replace and no more worries.
 
These things are annoying....In most MG's they leak out right onto the distributor...I need to replace one in the MGA and have it on order right now....sometimes if you shut the valve in the off position it will stop leaking....but you'll have no heat! /ubbthreads/images/graemlins/jester.gif
 
[ QUOTE ]
These things are annoying....In most MG's they leak out right onto the distributor...

[/ QUOTE ]

Better there than under the dash, mounted on the heating unit, just above the driver's right leg, as it is in the TR7 & 8! However, mine is now mounted on the firewall. All I have to do now is figure out how to hook it up! /ubbthreads/images/graemlins/crazyeyes.gif

Mickey
 
[ QUOTE ]
[ QUOTE ]
These things are annoying....In most MG's they leak out right onto the distributor...

[/ QUOTE ]

Better there than under the dash, mounted on the heating unit, just above the driver's right leg, as it is in the TR7 & 8! However, mine is now mounted on the firewall. All I have to do now is figure out how to hook it up! /ubbthreads/images/graemlins/crazyeyes.gif

Mickey

[/ QUOTE ]

Ouch!...Thats more than annoying..........I just found a brand new one thrown in with all my old parts....upon further inspection I discovered that the diaphram is cut!...Looks like a DPO had trouble fitting it properly or something....Shame cuz it's brand new. /ubbthreads/images/graemlins/hammer.gif
 
/ubbthreads/images/graemlins/smile.gif If ya need heat you should put that poor baby in winter storage. /ubbthreads/images/graemlins/smile.gif
 
If us Canucks followed that advice we'd never drive the things /ubbthreads/images/graemlins/ooo.gif
 
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