Heater Matrix Swap

BX Tech talk
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panky
BXpert
Posts: 674
Joined: Mon Jan 22, 2018 4:44 pm
Location: Widnes
My Cars: 1985 BX 19 GT (DKK), 1971 Morris Minor Traveller, 1971 Commer Auto-Sleeper, 1969 Commer Jennings Roadranger.
'88 BX GTi (a long time ago)
x 171

Heater Matrix Swap

Post by panky »

The drivers side carpet continues to get wet and a piece of kitchen roll pushed up the centre console heater vent shows that it's coolant, red oily Evans Waterless :? So all prepped with a new matrix and seals, system drained, relevant lower dash trim removed and a big towel in the foot well I contorted myself enough to remove the four bolts securing the pipes to the heater valve and the two self tappers locating the matrix, what a palaver. Had to drop the steering column to wiggle the old matrix out, it didn't come out in one piece.
Heater.jpg
Shiny new one
Heater 2.jpg
So it came to fit the new one, simply a reversal of the removal - yeh right. I got it in OK but the outlet flanges were about half an inch away (too long) from meeting up with the heater valve, there was no way it was going to fit. Wrong matrix?

Looks OK to me
Heater 4.jpg
So I tried to put the old one back in and it's the same 1/2" out. I'm stumped as there doesn't seem to be anyway anything could have moved, it's all solidly mounted.
Had enough today so I'll think on it and try again tomorrow. Any and all suggestions would be welcome.