Capped off radiator hose?
CF Veteran
Joined: Nov 2009
Posts: 8,172
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From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Why do u need a new/different bottle? Can't the old bottle be converted? An open system bottle must fill/empty coolant from the bottom and must fill/empty air at the top.
Last edited by djb383; Dec 24, 2013 at 08:56 PM.
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
So I have to flush the heater core, then buy and install an over flow bottle, then connect the the now capped off line the the newly installed overflow bottle. Any wasy way to flush the heater core? I've seen some stuff about using just a regular hose or using an air compressor? I did a flush just the other day and added a T into the heater core hose and attached my garden hose to it and turned the water on and had it flush out through the top of my radiator and into a bucket, did that with the Jeep running for about 5minutes untill all clear water came out. Was the sufficent enough or do I need to do something special for the core?
Thanks again!
Thanks again!
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Def could use old bottle im looking at its condition in his pics don't look in that great of condition to me .
Thread Starter
Seasoned Member
Joined: Mar 2013
Posts: 404
Likes: 0
From: Gilbert, AZ
Year: 1990
Model: Cherokee
Engine: 4.0 L
... lol So I'm assuming I need to remove the heater core to do this, correct?
CF Veteran
Joined: Nov 2009
Posts: 8,172
Likes: 17
From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
[QUOTE=Jakers;2717153]I'm sure it can prolly be converted just not sure how ... lol
The tube below the rad cap connects to the bottom of the bottle. The top of the bottle open to the atmosphere. Any other ports on the bottle get plugged/capped.
... lol The tube below the rad cap connects to the bottom of the bottle. The top of the bottle open to the atmosphere. Any other ports on the bottle get plugged/capped.
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
No just hook hose to each nipple and flush with garden hose ,with a nozzle on the end to get a little pressure going thru it see what comes out other hose .
Thread Starter
Seasoned Member
Joined: Mar 2013
Posts: 404
Likes: 0
From: Gilbert, AZ
Year: 1990
Model: Cherokee
Engine: 4.0 L
Thread Starter
Seasoned Member
Joined: Mar 2013
Posts: 404
Likes: 0
From: Gilbert, AZ
Year: 1990
Model: Cherokee
Engine: 4.0 L
Lol thanks for the diagram!
Green Lines=convert current bottle?
Okay so the the nipple on bottom of overflow goes to the capped off line below the radiator cap. and then replace the cap with a hose thats essentially pointed at the ground?
Red lines=Flush heater core?
So I would be putting in a hose attached to both nipples, then hook a garden hose up to one side of it to flush it all out, then put the garden hose to the other side and flush it from that side as well?
Green Lines=convert current bottle?
Okay so the the nipple on bottom of overflow goes to the capped off line below the radiator cap. and then replace the cap with a hose thats essentially pointed at the ground?
Red lines=Flush heater core?
So I would be putting in a hose attached to both nipples, then hook a garden hose up to one side of it to flush it all out, then put the garden hose to the other side and flush it from that side as well?
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Red line will hook heater core up directly to motor eliminating all the hose and pipe that's factory . Then from caped nipple on radiator run a hose to bottom nipple of tank . From top nipple on tank run a hose down to area between body and starter. Cap on pressure bottle remains on bottle for adding coolant if needed. Your goint to need adapter to go from large nipple on tank to smaller nipple on radiator . Or just buy a aftermarket bottle and some hose and be good to go.
Thread Starter
Seasoned Member
Joined: Mar 2013
Posts: 404
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From: Gilbert, AZ
Year: 1990
Model: Cherokee
Engine: 4.0 L
Ah gotchya! I might just go with an aftermarket bottle seeing as how mine is possibly 23 years old anyways lol. So with this setup (running the heater core directly to the motor) am I going to need a newer tstat housing or will my current one work?
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Currents works fine ...When mounting over flow get it low enough so hood don't hit lid ...
Thread Starter
Seasoned Member
Joined: Mar 2013
Posts: 404
Likes: 0
From: Gilbert, AZ
Year: 1990
Model: Cherokee
Engine: 4.0 L
