Heater matrix replacement

Post Sat Nov 10, 2012 5:16 pm

IS AWFUL!.

struggled with the removal of the screw holding the valve to the core, but now i can't get my hand in a decent enough position to slacken the bolts holding the pipe to the valve!

Any tips?

cheers

Post Sat Nov 10, 2012 5:34 pm

Try using an allen key with the torx20 end.
Worked for me earlier today, get enough turns on the screw, then grip hard & turn with fingers. Then nip up with the tool.

Post Sat Nov 10, 2012 5:37 pm

Ahh fair point! but what about the 8 mm bolts that face the bulkhead? they are proving more of a pig than anything

Post Sat Nov 10, 2012 5:37 pm

you have to undo them from the engine bay, did mine with the engine out, so i'm not to sure you can do it with the engine in? i think its 8mm or 10mm, use a ratchet with a exstension and wiggle it in there, then get it on the nut. its all done by feeling, you cant see fuck all

Post Sat Nov 10, 2012 5:44 pm

thought about that. cheers mate

Post Sat Nov 10, 2012 5:59 pm

Also those 2 little gold 8mm bolts, screw into a couple of tiny square shaped 'nuts', that are in the plastic receiving end of the valve.
If they fall out, you'll scratching your head for ages....ask me.

Post Sat Nov 10, 2012 7:54 pm

Lol i saw 1 drop off the valve and looked. glad i did. Cheers fellas

Post Sat Nov 10, 2012 9:57 pm

Bit of PVC insulating tape around the flange to hold the square nuts in place when you refit.
Replace the cross head self tapper behind the brake linkage bracket with a hex. headed one to make reassembly and future dismantling easier.
8mm bolts can be reached with a 1/4" socket and extension from under the bonnet and through the rubber grommet.

Post Sun Nov 11, 2012 10:26 am

got through the bonnet with a 1/4" ratchet and socket. but i can't remove the core because there is a bracket to the servo in the way. what should i do

Post Sun Nov 11, 2012 3:29 pm

I remove the servo bracket. Upon refitting make sure that the brake pedal at rest is pressing the brake light microswitch, you can hear it click when it engages. ^^ Same method for the screws facing the bulkhead, extension through or remove the grommet.

Post Tue Nov 13, 2012 8:53 am

Cheers man. looks simple enough to remove the bracket, but the car is my daily so im concerned about re-building it in time for work lol. may just remove the whole dash and do a thorough clean!