Hi all

I am having trouble with the heater in the car. I suspect the heater matrix is bunged up so want to flush it out in case. I have managed to get one of the hoses off the heater matrix but the other one seems welded on. Anyone have any bright ideas to get it off? I have tried
- rolling it back from the end
- squirting some WD40 as best I could between the hose and metal pipe it is on
- gripping the hose and trying to rotate it (doesn't move)

Also, anyone had any experience with cleaning solutions for this? I am concerned that it might dislodge something and case a leak.

All help appreciated

Thanks

Lee.

On 19/12/2017 12:12, wrote:
Hi all

I am having trouble with the heater in the car. I suspect the heater matrix is bunged up so want to flush it out in case. I have managed to get one of the hoses off the heater matrix but the other one seems welded on. Anyone have any bright ideas to get it off? I have tried
- rolling it back from the end
- squirting some WD40 as best I could between the hose and metal pipe it is on
- gripping the hose and trying to rotate it (doesn't move)

Also, anyone had any experience with cleaning solutions for this? I am concerned that it might dislodge something and case a leak.

All help appreciated

Thanks

Lee.

They can be buggers. I assume you have removed the clips completely. If
you have access (and often you don't) it might be worth trying to insert
a thin pointy object between the pipe and the hose. Something like a
scriber, bradawl, or small electrical screwdriver. If you can, work it
around as much as you can to free up the "stuck" area.

Yes.. clip is completely off (ie on the hose but beyond the end of the metal pipe). Access is very tight with the end of the hose about 50mm from the bulk head. Wonder if I can find a right angled thin thing as you describe

Thanks

Lee.

Apply some heat from a hot air gun? Worth getting a replacement before you proceed in case you wreck the current hose?

On 19/12/2017 12:52, Kevin H wrote:
Apply some heat from a hot air gun? Worth getting a replacement before you proceed in case you wreck the current hose?


I usually use a kettle full of boiling water to soften the end.
maybe lubricate it with diluted washing up liquid to lubricate it when
putting it back again.

--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

On Tue, 19 Dec 2017 04:51:46 -0800, leenowell wrote:

Yes.. clip is completely off (ie on the hose but beyond the end of the
metal pipe). Access is very tight with the end of the hose about 50mm
from the bulk head. Wonder if I can find a right angled thin thing as
you describe

Allen key?

--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor

On 19/12/17 12:52, Kevin H wrote:
Apply some heat from a hot air gun? Worth getting a replacement before you proceed in case you wreck the current hose?

Always fit new hoses when they wont come opf easily.The cost is low, and
you can split the old one with no compunction


--
If you tell a lie big enough and keep repeating it, people will
eventually come to believe it. The lie can be maintained only for such
time as the State can shield the people from the political, economic
and/or military consequences of the lie. It thus becomes vitally
important for the State to use all of its powers to repress dissent, for
the truth is the mortal enemy of the lie, and thus by extension, the
truth is the greatest enemy of the State.

Joseph Goebbels

Thanks all for your help. The winning combination was boiling water and Allen key so thanks both for your suggestions. I poured the boiling water on the hose which softened it considerably. Then putting the Allen key between the hose and pipe and then running it around the pipe freed it perfectly.

Thanks again

Lee.