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Replacing your heater core

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sheetsofsound
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Replacing your heater core

Postby sheetsofsound » 08 Jun 2014 03:48

Below

sheetsofsound
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Postby sheetsofsound » 08 Jun 2014 03:58

After receiving so much helpful advice on this forum, I hope this will be of use to some of you.

I was looking for an alternative to spending over $200 for a new heater core and stumbled across a core that has similar dimensions to the one that inhabits our non-A/C cars. It is from a VW Jetta and is made by VISTA-PRO Part # 399901. Total cost was around $60, so I gambled and ordered it online.
Image

You can see the angle of the inlet/outlet pipes is different, so some modifications to the heater matrix box needed to be made, specifically, to the hole on the top left side.
Image

Using a Dremel, the plastic can be cut away from this:
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To this:
Image

With that done, the VW heater core drops in pretty easily. You will just need to seal the ends with some foam tape.
Image

Image

It all works pretty well and is a lot cheaper than buying a new core, or trying to get your hands on seals to fix an old, leaky one.

john 215
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Postby john 215 » 08 Jun 2014 05:53

Hi,

Interesting mod, what year VW Jetta did it originally live in, is the 'old ' shape or ' new ' shape one ? May look into this myself as the matrix in my FHC is weeping [:(]

Looks very similar to these on a quick Fleabay search -

http://www.ebay.co.uk/itm/HEATER-MATRIX ... 540a5690ff


This one even gives you the dimensions -

http://www.ebay.co.uk/itm/HEATER-MATRIX ... 2ec36eca7e

Got spare heater box will have to get the tape measure out.

Cheers John

ImageImageImage Image
LIVE LIFE A QUARTER OF A MILE AT A TIME!

1976 Speke FHC Beauty Now with an overdrive conversion

1979 3.5 FHC(STATUS PENDING!!)

1982 2.0 DHC NOW A 4.6, BUILT NOT BROUGHT !!!!

jeffremj
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Postby jeffremj » 08 Jun 2014 06:19

<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">May look into this myself as the matrix in my FHC is weeping [:(]<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">I have mentioned many times that using this sort of matrix is the best way to go as all the usual leaks will stop. When I replaced my heater cores in the 1990s, my radiator repairer supplied (as a standard refit?) one of these (or very similar). Note that my heater core didn't need any mods. - other than to the core to the bulkhead piping.

So, just go to your radiator supplier with your original core and ask for one of the 'new' type.

moodyblue
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Postby moodyblue » 08 Jun 2014 11:56

The new modified ones available for the TR7 in the UK are very expensive, around £110, so I think I'll go with this idea or similar for my next project, thanks for the info.

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Postby jeffremj » 08 Jun 2014 12:03

<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by moodyblue</i>

The new modified ones available for the TR7 in the UK are very expensive, around £110, so I think I'll go with this idea or similar for my next project, thanks for the info.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">Not when I bought them, they were cheaper than the originals. IIRC, it cost £15 and so they should be around £30 now. I suggest you try a standard radiator supplier rather than eBay - they may have a cross reference on it.

Workshop Help
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Postby Workshop Help » 08 Jun 2014 12:29

Very good! Sheetsofsound, please move this to The Workshop Manual.

Mildred Hargis

sheetsofsound
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Postby sheetsofsound » 09 Jun 2014 00:00

The model year I ordered was from a 1981 Jetta, but I'm pretty sure the cores that john 215 linked to are the same.

Mildred; I'm not sure how to move the thread over to the Workshop Manual section.

john 215
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Postby john 215 » 09 Jun 2014 17:13

Hi,

Allow me,duly moved.

Cheers John

ImageImageImage Image
LIVE LIFE A QUARTER OF A MILE AT A TIME!

1976 Speke FHC Beauty Now with an overdrive conversion

1979 3.5 FHC(STATUS PENDING!!)

1982 2.0 DHC NOW A 4.6, BUILT NOT BROUGHT !!!!

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