Heater control valve removal , hopefully!

Technical advice Q&A

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Grant
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#1 Heater control valve removal , hopefully!

Post by Grant » Wed Oct 21, 2020 6:13 pm

Hi All ,
I’m just in the process of stripping my engine bay for paint but cannot get the heater control valve to move, the spacer it’s on spins round the pipe and the pipe moves in the bulk head but I can’t even twist the heater control valve, have I missed something or is it just seized on from old age?

Thank you in advance as always

Grant
S2 lhd ots
Series 2 OTS LHD

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Topic author
Grant
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#2 Re: Heater control valve removal , hopefully!

Post by Grant » Wed Oct 21, 2020 6:36 pm

Hi , I’ve just managed to find some more on here having the same problem, so it seems like it’s just brute force and ignorance. Unless anyone has found a way a better way of freeing it off .

Thanks

Grant
Series 2 OTS LHD

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abowie
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#3 Re: Heater control valve removal , hopefully!

Post by abowie » Wed Oct 21, 2020 7:02 pm

The valve seals onto the pipe with a rubber seal which is compressed between the valve and the spacer.

Yours has probably just fossilised. Enough rotation force should break it but you want to be careful you don't snap off the pipe.

A bit of judicious heat might help.
Andrew.
881824, 1E21538. 889457..oops. Jezza the V12 XJS race car.
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia

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Grant
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#4 Re: Heater control valve removal , hopefully!

Post by Grant » Wed Oct 21, 2020 8:02 pm

Hi Andrew

Yes, I’m
Going to try a few kettles of boiling water on it
Tomorrow,
I will let you know how I get on ,

Thank you
Series 2 OTS LHD

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abowie
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#5 Re: Heater control valve removal , hopefully!

Post by abowie » Thu Oct 22, 2020 5:06 am

I was thinking more of propane or oxy acetylene. But maybe that's just me...
Andrew.
881824, 1E21538. 889457..oops. Jezza the V12 XJS race car.
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia

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Mich7920
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#6 Re: Heater control valve removal , hopefully!

Post by Mich7920 » Thu Oct 22, 2020 6:53 am

Or heater gun.
Beware to not twested the iron pipe.
I don't think 100° is enought to remove it
Michel
1965 E Type FHC - On the road - 1963 E Type OTS - Angus Restoration
Gran Torino Sport 1975 - Renault 4cv 1956 - CItroen 15/6 1951 - CItroen Traction 1945
Citroen Coupé docteur 5Hp 1924 - Citroen B12 1926 - Torpedo Sygma 1913
Harley D. 1915 sidecar

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Grant
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#7 Re: Heater control valve removal , hopefully!

Post by Grant » Thu Oct 22, 2020 6:56 am

Morning Andrew and Mich ,

I was just a little nervous of using a flame that close to the bulk head , I will have a go today and let you know how I get on ,

thank you

Grant
Series 2 OTS LHD

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Mich7920
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#8 Re: Heater control valve removal , hopefully!

Post by Mich7920 » Thu Oct 22, 2020 7:17 am

No flame with an electric heat gun :wink:
Michel
1965 E Type FHC - On the road - 1963 E Type OTS - Angus Restoration
Gran Torino Sport 1975 - Renault 4cv 1956 - CItroen 15/6 1951 - CItroen Traction 1945
Citroen Coupé docteur 5Hp 1924 - Citroen B12 1926 - Torpedo Sygma 1913
Harley D. 1915 sidecar

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Grant
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#9 Re: Heater control valve removal , hopefully!

Post by Grant » Thu Oct 22, 2020 10:13 am

Hi Mich

Yes that’s a good idea thank youn
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MSM
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#10 Re: Heater control valve removal , hopefully!

Post by MSM » Thu Oct 22, 2020 11:16 am

Hi Grant

Assuming the heater valve is to be replaced, judicious use of a junior hacksaw to split the body of the valve may be worth a try if you can get in there. You need to be careful not to nick the pipe though.
Mike

S2 FHC

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Richardhealey
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#11 Re: Heater control valve removal , hopefully!

Post by Richardhealey » Thu Oct 22, 2020 7:08 pm

Hi Grant,
I faced the same issue and a ‘little’ brute force of a flat head screwdriver between spacer and the valve freed mine. I think turing the valve body itself helped too.
I think a build up of calc and the rubber olive welding itself to the tube is the cause of the reluctance.
Hope is goes well!
Cheers,
Rich
1969 series 2, 2+2... going for a full rebuild.. Gulp...

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Grant
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#12 Re: Heater control valve removal , hopefully!

Post by Grant » Mon Oct 26, 2020 7:40 am

Hi Guys

Thank you for your replies, at this stage I’ve decided to leave it ,I do not want to open another can of worms at the moment, but I will let you know how I get on when I come back to it ,

Thank you all for your replies

Grant
Series 2 OTS LHD

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