chengny
Full Access Member
- Joined
- Feb 22, 2012
- Posts
- 4,084
- Reaction score
- 1,026
- Location
- NH
- First Name
- Jerry
- Truck Year
- 1986
- Truck Model
- K3500
- Engine Size
- 350/5.7
The flushing solution goes in through the bottom nipple (5/8"). Just push your normal smaller heater hose on to the nipple. Secure the open end of that hose to something. It doesn't matter what - firewall, under a wiper blade, taped to the windshield, etc. - as long as it's above the level of the upper (outlet) nipple.
Put a funnel in the open end of the hose and add the flushing stuff into the core by gravity. It will fill the core from the bottom up and purge out any air pockets as it fills the coils.
When there is a steady (air free) flow of flush stuff coming out of the top nipple, stop and walk away - you are packed and purged.
Next day, pull the hose off and let the flushing solution drain out the bottom.
Attach a garden hose to the top nipple - duct tape is good enough - and blast fresh water backwards through the coil (i.e. from the top down) for awhile.
When it looks clear, switch the garden hose to the bottom nipple and flush in normal direction.
When it runs clear, switch to top again.
Continue until satisfied that the watersides of the coils are clear.
This winter you'll have the warmest truck in Oregon!
Put a funnel in the open end of the hose and add the flushing stuff into the core by gravity. It will fill the core from the bottom up and purge out any air pockets as it fills the coils.
When there is a steady (air free) flow of flush stuff coming out of the top nipple, stop and walk away - you are packed and purged.
Next day, pull the hose off and let the flushing solution drain out the bottom.
Attach a garden hose to the top nipple - duct tape is good enough - and blast fresh water backwards through the coil (i.e. from the top down) for awhile.
When it looks clear, switch the garden hose to the bottom nipple and flush in normal direction.
When it runs clear, switch to top again.
Continue until satisfied that the watersides of the coils are clear.
This winter you'll have the warmest truck in Oregon!
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