Volvo Owners Club Forum - View Single Post - How to change the Heater Matrix on a 900 Series.

CTCNetwork · Feb 8th, 2008, 15:20

Hi,

As will be updated in my project threat which includes this process....

Removing the pipes from the engine to the matrix/exchanger pipes:
Easier said than done. They may have been fitted 10+ years ago. Welding has nothing when compared to removong these pipes. Prepaired to be seriously p155ed off!
It helps to remve the lead from the coil to the distributor. Not much, but it helps.
Have a big breaker bar handy!!!

Remove the matrix from the distributor box:
Slides out? No f*****g way!!
The holes through the firewall to accomodate the matrix pipes have a dense foam "grommet!" to prevent movement and vibration as well as seal the engine compartment from the cabin...
These, after the same 10+ years have been double welded into position around the pipes of the matrix!!!
So, while you have a springy movement when trying to pull the matrix out, you have little else.
Use of a breaker bar may help but may also damage the heater box itelf..

Just waiting to find out if there is a part number for these grommet type things....
Before I hack the thing/s to pieces!!!

Des. . .

Feb 8th, 2008, 15:20	#18
CTCNetwork Forum Support Team Join Date: Dec 2004 Location: Liège, Belgium	Hi, As will be updated in my project threat which includes this process.... Removing the pipes from the engine to the matrix/exchanger pipes: Easier said than done. They may have been fitted 10+ years ago. Welding has nothing when compared to removong these pipes. Prepaired to be seriously p155ed off! It helps to remve the lead from the coil to the distributor. Not much, but it helps. Have a big breaker bar handy!!! Remove the matrix from the distributor box: Slides out? No f***g way!! The holes through the firewall to accomodate the matrix pipes have a dense foam "grommet!" to prevent movement and vibration as well as seal the engine compartment from the cabin... These, after the same 10+ years have been double welded into position around the pipes of the matrix!!! So, while you have a springy movement when trying to pull the matrix out, you have little else. Use of a breaker bar may help but may also damage the heater box itelf.. Just waiting to find out if there is a part number for these grommet type things.... Before I hack the thing/s to pieces!!! Des. . . __________________ Density:- Not just a measurement ~ It's a whole way of Life.! ! ! I drive a Volvo, Please Don't Get In My Way! OldVolvos4Ever** He shows up. People die. He vanishes. People should not be afraid of their governments. "He'll deliver more justice in a weekend than 10 years of your Governments should be afraid of their people... "V" courts & tribunals. Just stay out of his way." "I plan to."