Ac evaporator large leak

Post by **misha** » 13 Jul 2022, 05:41

Neil mentioned something about housing where evaporator and heater core are.

Can anybody confirm that evaporator section can be separated independently of heater core section on 850?

I ask this just in case that i couldn't be able to source Volvo o-rings for heater core.

Post by **abscate** » 13 Jul 2022, 19:09

Pictures here..

viewtopic.php?t=56005&hilit=1999+v70+t5&start=30

The white plastic thing gets pulled out of the car, with or without the heater core, then you remove the shiny metal clips to expose the evaporator core

Post by **scot850** » 14 Jul 2022, 02:42

I am clearly wrong on this. You will have to remove the whole air box as I had forgotten about those clips on the rear against the firewall.

Heater core will have to come out.

Neil.

Post by **ZionXIX** » 14 Jul 2022, 09:07

Man. Those clips make this a complete disassembly project.

Post by **abscate** » 14 Jul 2022, 09:54

If tailless monkey me can do it, anyone can. It’s much more daunting on paper than when you get to it.

Post by **misha** » 14 Jul 2022, 10:03

Thank you for encouragement guys!

I'm waiting for prices on Nissens or NRF evaporator from my AC shop specialist.

I still didn't managed to source heater core o rings.
That will be the biggest problem.

Post by **abscate** » 14 Jul 2022, 13:39

Pm me your address and I’ll send some by mail

Post by **misha** » 14 Jul 2022, 15:47

Thank you abscate...but that will arrive in Serbia in about 2 weeks.

We have one "new" Volvo dealership in Belgrade and will try with them.
I got vacuum tree,flame trap o rings and dipstick tube seal from them last year when i was replacing pcv system.

If you have exact measurements of a brand new o rings that would help a lot because we have some kind of o ring & seal shop 20km from my place.

They make and produce o rings for any applications and have some standard dimensions of o rings at stock.

Maybe i could get lucky with these.

Post by **abscate** » 16 Jul 2022, 03:59

If you have exact measurements of a brand new o rings that would help a lot because we have some kind of o ring & seal shop 20km from my place.

That info is in the master o-ring thread.

Post by **misha** » 16 Jul 2022, 08:24

This far i could only find 20x2.0mm and 20x3.0mm.

O ring master thread says 20x2.3mm for heater core o rings.

Will dig some more.