Radiator convertion

[specialkeay]

My radiator in my 89 Comanche is leaking and I have a 96 cherokee for a parts car(both have 4.0). Will there be any problems putting in the 96 radiator. I notice that the 89 has a pressurized overflow tank and the 96 does not. Do I want to change the overflow tanks as well?

[88pioneer]

Nows a good time to do the open cooling system swap. Use the cooling parts from the 96, and remove the pressure bottle. Its an easy swap to do, but helps a lot

[specialkeay]

How does it help. Thats diffrent from the system I have now (aside from it leaking)

[88pioneer]

No need to "burp" the system to remove air. also, many people, my self included have either cured there overheating problems, or it resulted in their engine running cooler. I believe Pete used an open system radiator in his closed system with no problems, if you don't feel like doing the full swap.

[specialkeay]

So is all I half to do is swap the radiator and the overflow bottle and thats it. Or is there a little more to it?

[mkbruin]

Radiator, non-pressurized bottle, and thermostat housing, I believe.

 

edit: Links

http://www.madxj.com/MADXJ/technical/te ... Switch.htm

 

viewtopic.php?t=7695

[Akula69]

There are also some hose routing changes (i.e. - elimination of the hoses that go to and from the closed system tank) and a slightly different heater valve assembly (which you can get from the donor vehicle). If you choose, you can eliminate the heater valve assembly entirely (by using straight hoses to and from the heater core) but remember to cap the vaccum line if you do so.

 

You might also want to check and/or replace your thermostat in the process, and flush the cooling system.