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 Pipe inside heat exchanger 
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Joined: July 28th, 2009, 3:55 pm
Posts: 10
Post Pipe inside heat exchanger
I need to replace the r/h pipe which is inside the heat exchanger. Note the comment on ECAS page where I have ordered the part from that it is DIFFICULT TO FIT. Now I don't know whether that comment applies to an experienced mechanic or to a DIYer like myself. So any hints or tips or pitfalls likely to occur on how to remove heat exchanger and pipe and refit same. Also approximately how long would it take an experienced mechanic to replace this part. Thank you.


October 31st, 2018, 5:06 pm
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2CV Fan

Joined: April 20th, 2017, 10:55 pm
Posts: 90
Post Re: Pipe inside heat exchanger
Which pipe are we talking about; oil feed; pushrod tube; push rod tube seals, or something else?


November 1st, 2018, 10:44 am
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Firing on two.
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Joined: March 21st, 2013, 12:04 am
Posts: 694
Location: Exeter, Devon
Post Re: Pipe inside heat exchanger
Exhaust Derek!

Not to many would attempt this as the easiest solution is to source another heat exchanger. I've taken one apart, but not put one together (didn't intend to ;) ).

I guess your changing it because you think its blowing. If so, just fit the new pipe before dismantling to ensure it resolves the issue. :D

The halves of the exchanger metal, are folded over to retain. Also probably welded to pipe to stop rattling.

Take a look and you will see. If you get it apart, take a look at the dump control flap to see if that can be improved. ;)

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November 1st, 2018, 11:01 am
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Firing on two.
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Joined: February 11th, 2009, 12:32 am
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Location: Chichester, West Sussex
Post Re: Pipe inside heat exchanger
Where are you Hypnoses, I have STACKS of heat exchangers. Happy to post them. Don't want any real money for them.


November 1st, 2018, 9:09 pm
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Joined: April 24th, 2010, 10:01 am
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Post Re: Pipe inside heat exchanger
samfieldhouse wrote:
Where are you Hypnoses, I have STACKS of heat exchangers. Happy to post them. Don't want any real money for them.



can i grab a pair off of you?

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November 1st, 2018, 10:12 pm
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Firing on two.
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Joined: February 11th, 2009, 12:32 am
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Location: Chichester, West Sussex
Post Re: Pipe inside heat exchanger
J-dub wrote:
can i grab a pair off of you?


You can always grab my pair.


November 2nd, 2018, 3:35 pm
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Firing on two.
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Joined: February 17th, 2009, 8:43 pm
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Location: NOrWAY
Post Re: Pipe inside heat exchanger
samfieldhouse wrote:
J-dub wrote:
can i grab a pair off of you?


You can always grab my pair.

:D


Never opened a heat exchanger. But to change the pipe, couldn't one just cut the heat exchanger open at the bottom (from "pipe opening to pipe opening), bend it apart, change the pipe, clamp it back together and weld it?

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November 2nd, 2018, 6:17 pm
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Firing on two.
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Joined: October 22nd, 2014, 10:59 pm
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Location: South-Limburg
Post Re: Pipe inside heat exchanger
In germany they sold 2cv catalisers that went in the heat exchanger. As they are getting very hot you had better heating too. They took the thing apart to put it in i presume.


November 2nd, 2018, 6:47 pm
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Joined: March 21st, 2013, 12:04 am
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Location: Exeter, Devon
Post Re: Pipe inside heat exchanger
Or, had it manufactured like it. ;)

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November 3rd, 2018, 11:46 am
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Joined: April 24th, 2010, 10:01 am
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Post Re: Pipe inside heat exchanger
i shall get some from you when im home if thats ok sam-I-am

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1988 2cv 602cc firing on 1 - 2 spark
1993 Toyota Hilux Surf 3000cc runs on cooking oil
2005 Landrover defender 110 pickup Hi-Cap with crane


November 4th, 2018, 12:06 am
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