I'm running the 2nd vinegar treatment through it now.
I bought a water-hose "repair kit" at Wal-Mart and attached it to a
heater hose, then flushed the whole system with the garden hose till it
Then I pulled the radiator, capped it off completely, then repeated the
flushing straight from the hose. I installed my heater/garden hose
attachment to where the heater core connects with the radiator...garden
hose on, brown crap came out, continued till it ran clear from all
holes. (I'd block the upper and lower holes with my hands, and let it
squirt out the draincock, then block the drain, and let it shoot out
the top, then let it shoot out the bottom, till all ran clear)
I filled it with vinegar and let it sit about 2.5-3 hours before
draining it. The stuff came out milky-white. I repeated the
clean-water flushing cycle with the hose till clear, then refilled it
with fresh vinegar 5 minutes ago, so now I'm back to waiting.
When I'm putting it all back together, I'm just going to run a new
piece of 5/8" heater hose from the intake manifold to the radiator and
not even have the heater core connected for now. It'll only be a 5
minute fix to reinstall. I'll get around to installing a valve, like
you did, later.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.