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Heater Valve


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#1 blacktulip

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Posted 14 May 2020 - 05:04 PM

Does anyone know if the heater valve on the head is meant to let by a little bit when off?

#2 nicklouse

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Posted 14 May 2020 - 05:14 PM

Should stop all flow.



#3 blacktulip

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Posted 14 May 2020 - 06:32 PM

I have 2 in the garage that let by ever so slightly and didnt know if they are fit for the bin.

Edited by blacktulip, 14 May 2020 - 06:32 PM.


#4 mab01uk

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Posted 14 May 2020 - 06:49 PM

Beware the quality of some replacement 'pattern part' heater valves is much worse than an original part with a slight weep or one that does not fully shut off!

Minispares version below looks good quality.

 

HEATER VALVE GENUINE MINISPARES ORIGINAL SHAPE

"Genuine Mini Spares heater valve. The original RANCO tooling has been scrappped so beware of some imports available where the inners quickly explode loosing the metal cap and all your water when operated.This has M4 metric thread bolt included for the cable screw instead of the 11/31"unc thread original."

http://www.minispare.../ADU9102MS.aspx


Edited by mab01uk, 14 May 2020 - 06:53 PM.


#5 Quinlan minor

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Posted 14 May 2020 - 07:54 PM

Try pulling it fully open when the engine is at working temperature and then pushing it shut. Mine is much easier to operate when the system is hot.

If that fails try closing it from the plumbing end while an assistant works it from the inside.






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