Finally got some time and good weather today!

 

Finished making the electrical connections in the dash, and replaced the hoses to the heater core. Reconnected the battery, and after sitting for months, the old girl fired up and ran like a champ!

 

My heater now works great! All the vacuum motor are working, and no more rodent excrement and leaves blowing out the vents!

 

4x4 still not functioning, so I will have to keep digging on that. Next steps will be to finish installing the dash, recalibrating the gauges, and finishing the stereo install. 

 

Good to hear the old girl run! 

 

John

Glad to hear she's coming along Hopefully I'll spot ya tooling around town in it soon, that way I'm not the only old school Soob getting funny looks lol

Out of curiousity, how does the heater box switch between the positions?

 

I've seen the US spec buttons up beside the heater temp control & I can't tell if they're electrical connections, or vacuum operated (like ours).

Vacuum operated, just like yours.

Sorry for being slow to post on this. Didn't get notified on responses for some reason. 

 

Yup, there's like three vacuum motors or actuators this open and close flaps to direct air and regulate the amount of air flowing over the heater core. There are foam seals and gaskets throughout the HVAC system, to seal joints, seal doors, and reduce nose I assume. Time and rodents had destroyed all of these in my system. I replaced all of this with foam weather stripping and batting. I tested the vacuum actuators with a handheld vacuum pump. I also replaced the blower motor. I now have forced warm air, just as God intended! :-)

 

John

In the process of doing the same thing John. That factory foam is............ick. After having cleaned/removed it all, I have to wonder how much of it was ending up in my lungs when I used my HVAC. Stuff was turning to powder in places.

Yeah, I was pretty jazzed not to have disintegrated foam, leaves, rodent excrement and Lord knows what else blowing out at me. Lol

 

And my heater works great! Just in time for summer! lol

 

John

Haha! Just like my 4wd. Got it fixed right *after* the last big snowstorm.