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

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

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

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

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

Its fairly simple just go for it.

Mike