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Posted

Hi- Another issue here:      Someone bypassed the heater control valve on my comanche 4.0 so here s the layout of my hoses.

From water pump to Heatercore Intake ,  from heatercore OUT to radiator Overflow tank(next to pass hood hinge) From overflow tank  to waterpump intake line.

 

 

 

 here's THE PROBLEM ........ I need a hose to from from Firewall/heatercore  to the Overflow bottle which is close to the heatercore line.      . its 5/8" hose   . try to follow this part ........it comes OUT of firewall about 3 inches,goes UP about 3 inches,then goes LEFT about 3 inches to go into the overflow bottle. - I can't find a hose like this ANYWHERE.          .a 5/8 hose that 90s ,goes a few unches then 90s again. -  ... SO,reckon I'm stuck using connector fittings?  its all because there IS NO heater control valvce thingy that the hoses connect to.it was bypassed long ago.

Posted

Thanx Comanchefan.   I just may have to fall back on that.   That "T" pice   (center bottom) sure looks handy   & very similar to what I need,except it needs to turn to the other way instead of toward the camera. Thanx though,this May work.

Posted

One more time: That tank on your firewall is not -- repeat NOT -- an overflow tank. It is a part of the pressurized cooling system. The '87 - '90 4.0L MJs do not have any cooling system overflow. They have a closed system. The cap of that tank is the pressure cap. The tank is an expansion tank, and must be filled only to the halfway mark when cold.

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