Its fairly simple just go for it.

Mike

I've pulled the heater unit out of the car,
& have a new heater core & hoses to go
into it.I'm just trying to find out any tricks on pulling it apart & rebuildind it.

- Doug

My heater hasn't been hooked up for a good 8 months or more, anyone else agree that it's probly corodded like hell?

put heaps of rags and even newspaper down to stop your carpet getting coolant soaked and stinky

Heater rebuild? Never heard of that. Here's what I'd check:

Heater core:
* Leaks (before removing, check for leaks in passenger area, under carpet, on firewall cardboard, etc)
* Flow (ensure it is not plugged). You can test similar to radiator blocked test
* Clean out debris in exterior of core

Hoses: Check for cracks, overly soft hoses, tight clamps

Flow valve: ensure it opens & closes easily through entire range. Also check linkage for easy and complete movement (before taking apart)

Air ducts: Ensure they are clean and connected properly

Electrical:
1. Ensure fan spins at both High & Low speed

I want to go through the heater on my
'78 B210,& I'm trying to find out any tips,
tricks,etc. that i should be aware of before
tearing it down.Ideas?

- Doug