Funny you say that, i joined a Discord group for old computers and just
couldn’t make head or tail of it.
All the messages just seemed to be in time order with all subjects mixed up, i
couldn’t work out any way to follow threads or keep track of what i had replied
to.
Maybe it was just me but i left after a few days.
I will have a look at the Mini matrixs.
Jim
From: Darren Siepka
Sent: Wednesday, July 19, 2023 10:54 AM
To: quantumowners@googlegroups.com
Subject: Re: [Quantum Owners] Heater Matrix (Fiesta Mk2)
I also agree how horrid FB is( I only have an account to use messenger!)
The ECU group (speeduino ) I contribute to have moved to discord after a short
trial of slack.
This is much nicer for conversation than FB.
Back to the subject.
I also looked for a replacement and was staggered at the quality and the cost
of a replacement.
So looking elsewhere I found BMW mini matrixes! They are all ally and are a
very close fit. The pipes plug in(also alloy) and could be made to use the
original body holes if desired ( I am not) .they also are super cheap,even new!
I am using one of these along with the matching PTC element in my MK3 box on my
updated 2+2 build.
The MK2 matrix is similar .
On Wed, 19 Jul 2023, 09:34 Jim Hearne, <j...@quantums.info> wrote:
Thank you for the picture, I will have one more go at getting the alloy one
to fit and if not i will get one of those.
In my case the matrix failed while the car was unused for over 5 years.
Despite being filled with new orange antifreeze it managed to corrode though
the matrix and empty the entire cooling system into the footwells.
Luckily there was no carpet fitted.
I have also drilled a hole in the lowest part of the lower cover, as you say,
you can see the first trace of a leak then instead of waiting until the whole
lower cover has filled with water.
Jim
From: list...@liberator-systems.co.uk
Sent: Tuesday, July 18, 2023 11:41 PM
To: Quantum Owners Group
Subject: Re: [Quantum Owners] Heater Matrix (Fiesta Mk2)
I agree the alloy matrices give out a toasty heat - I am hoping even if get
less heat output I get better reliability. Time will tell.
When I get some spare time I may test/dissect the failed alloy ones to see if
there is a common fail point. One theory I had on fails was they could be the
weakest part of an overheated pressurised cooling system and do not handle
overheating very well (had plenty of those). I guess they are pressure/leak
tested on manufacture but maybe they don't handle cycles of overheating very
well.
I forgot to post pic earlier of metal matrix snug fit in box. I have now
drilled a few small holes in lowest part of heater box so any dribble from
these will hopefully give an early alert to any developing leak and avoid the
box filling up like a swmming pool BTDT
On Tuesday, 18 July 2023 at 08:51:53 UTC+1 Jim Hearne wrote:
Hi John,
Thank you for taking the time to keep trying to pass on your message.
I agreed with everything you said about facebook but unfortunately it
seems to be where everybody is going nowadays.
Be interesting to hear your results with the all metal one, i had tried one
of those many years ago and the heat output seemed a lot less than the plastic/
aluminium ones.
I assumed this was because there are a lot less fins on the all metal ones.
Many thanks,
Jim
From: list...@liberator-systems.co.uk
Sent: Monday, July 17, 2023 10:54 PM
To: Quantum Owners Group
Subject: [Quantum Owners] Heater Matrix (Fiesta Mk2)
Jim Hearne recently posted a question on the QOC Facebook group about
heater matrix.
I did try several times to post some comments there but my comments never
appeared and I gave up so posting here instead.
Just as an aside tbh I find FB incredibly frustrating to use for groups -
it is difficult to follow conversations/threads, poor sequencing, endless
clicking required, total waste of screen space, poor search... etc. etc. End
of FB moan sorry ;)
Anyway I compared heater matrices the other day ( alloy/plastic V
copper/brass). I am trying the all metal type this time as the the others seem
prone to failure. The metal replacement is far more substantial - weighs almost
twice as much and bigger in all dimensions. The fit inside heater box is very
snug so minimal if any sealing foam required - which is great as the Ford type
foam used throughout heater box always disintegrates over time and gets blown
out when fan is switched on. I have also just replaced all the foam on the
heater box flaps with some eva type foam which hopefully will last better.
John
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