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Heater Core Project. 'Gentlemen, we can rebuild her. We have the technology......' 200

posted by  mormit on  Tue Nov 27 17:29 CST 2007
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last visit: Sat Jun 7 18:36 CST 2014
[RELATED]

The trusty 85 240's heater core or an associated hose decided to crap out after only 23 years. Leaking fluid that is soaking the driver side carpet and dripping from the frame. I started pulling appart the dashboard on what is the 240 owner's mother of all repairs.

While I'm in there shedding light to parts that have not seen the light of day since about August 1984, what else should I do?

I'm thinking of testing some questionable relays (rear wiper works but not on intermittent), maybe get the clock working again. Not a lot of dash squeeks now but I'm afraid that after I put it all back together, things will move. Any foam, adhesive, or material I should use between parts when I put this all back together?

mormit
--
02 S40 , 98 V70 T5 Koni FSDs, IPD swaybars and HD Endlinks, 85 245DL 277,000mi V15cam It takes a licking and keeps on ticking








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    Heater Core Project. 'Gentlemen, we can rebuild her. We have the technology......' 200

    posted by  volvo245kit on  Wed Nov 28 15:51 CST 2007
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    last visit: Sat Apr 30 20:54 CST 2011
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    Mormit, If you haven't thought of this already and if it isn't fairly new, I'd definately replace the heater blower motor with a new one. You should've had to remove this to get to the core. If you haven't heard already they're notorious for going out and it's 80% of the job that you're getting ready to do. Now is definately the time. Good Luck!








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      Heater Core Project. 'Gentlemen, we can rebuild her. We have the technology......' 200

      posted by  mormit on  Wed Nov 28 17:19 CST 2007
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      last visit: Sat Jun 7 18:36 CST 2014
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      The blower moter is original so that would probably be best. At one time I remember reading somebody's post about being able to lubricate the blower to prevent a failure but at this point it makes more sense to put a new one in while I'm at it. I want to cover any preventive maintenance, repairs, or improvements I can do so I never have to do this again. I see fcpgroton has a good price on the blower so that might get changed out as well.

      This is currently my spare car so I can take my time.

      mormit
      --
      02 S40 , 98 V70 T5 Koni FSDs, IPD swaybars and HD Endlinks, 85 245DL 277,000mi V15cam It takes a licking and keeps on ticking








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    Heater Core Project. 'Gentlemen, we can rebuild her. We have the technology......' 200

    posted by  transit wind on  Tue Nov 27 18:15 CST 2007
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    last visit: Fri Aug 15 22:40 CST 2014
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    Did you have any warning signs prior to the big leak. Any faint smells of coolant at times or anything that gave you time to realize it was going or did it just go? I have an occasional faint smell of antifreeze but not all the time. Just wondering what to look for. Thanks, Good luck.








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      Heater Core Project. 'Gentlemen, we can rebuild her. We have the technology......' 200

      posted by  mormit on  Wed Nov 28 17:28 CST 2007
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      last visit: Sat Jun 7 18:36 CST 2014
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      Hard to say because the poor girl has been sort of a loaner car lately. It is my spare car. My brother-in-law borrowed it for several months after his car was stolen......whish I had never bothered replacing the rear main seal on that Neon....another story, grrrrrr.

      Then my wife's friend totaled her car in an accident and was using this car for about three weeks. The temp gauge was going up last week in traffic so she brought it by right away. Close to a gallon low on antifreeze. One week later the same. About three quarts low.

      With it idling I could see coolant dripping from the frame alongside the transmission on the driver's side. The driver's side carpet and floormat appeared dry from above but pulling it up, the padding was soaked. Left the carpeting pulled back to help dry things out.

      mormit
      --
      02 S40 , 98 V70 T5 Koni FSDs, IPD swaybars and HD Endlinks, 85 245DL 277,000mi V15cam It takes a licking and keeps on ticking








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      Heater Core Project. 'Gentlemen, we can rebuild her. We have the technology......' 200

      posted by  bmwjohn on  Wed Nov 28 03:20 CST 2007
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      last visit: Sun Oct 19 21:49 CST 2014
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      Greetings:
      This is just a thought. A long time ago, in a vehicle far away, I had a leaking heater core which I did NOT wish to replace, for the obvious labor hassle reasons. I used a LOT of BARS Leak stop leak. This can also clog the rest of the cooling system. After about 24 hours I completely changed the antifreeze solution to eliminate clogging, but the stop leak had cured the heater core. There is a risk that the radiator will get clogged, but it didn't. Even if it did, replacing my older radiator was far easier than the heater core. This was not a Volvo and obviously not the professional restoration method. Goal was to leave the stop leak in just long enough to stop the leak and then get rid of it ASAP before any bad effects occurred. I wouldn't guarantee it would last forever, nor that a rubber hose can be cured this way.

      BMW John in Avon/Indy








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        Heater Core Project. 'Gentlemen, we can rebuild her. We have the technology......' 200

        uid 40935's pic
        posted by  Goatman on  Wed Nov 28 04:17 CST 2007
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        last visit: Sat Jul 26 20:30 CST 2014
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        When I worked at the local volvo shop, I saw some cars that had just this problem, (leaking through the floorboard.) The problem was not the hose or the core, but the bulkhead fitting that had cracked and was leaking.








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          Heater Core Project. 'Gentlemen, we can rebuild her. We have the technology......' 200

          posted by  mormit on  Wed Nov 28 17:11 CST 2007
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          last visit: Sat Jun 7 18:36 CST 2014
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          Hmmmm... That is a possibility. I pulled most of the dash out last night and haven't touched it today. The top of the core and hoses I can reach are dry so far. I have a new core on the way so while I'm in there the new core is going in along with new hoses and the bulkhead fittings if they are at all questionable.

          Thanks,
          mormit
          --
          02 S40 , 98 V70 T5 Koni FSDs, IPD swaybars and HD Endlinks, 85 245DL 277,000mi V15cam It takes a licking and keeps on ticking







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