cherokeechief8891

changed out the old closed radiator w/ an open radiator from a '91 and when i was letting it run i thought things where good... but no when i got to driving it the pressure was buliding up so much i popped a hole in the over flow tank so i went and bought an overflow tank out of a "94 but they all look the same. my question is my football lookin one right now is horizontal (spelling) and the newer one is vertical.. what do i do to get that vertical one to fit?
any advice is ballin'

PingPong

THe rectangle on is a pressure tank so it wont bleed off pressure. I ended up putting my overflow tank where the windshield washer bottle was, but my rig is strictly off road.

cherokeechief8891

thank you sir,, just gotta figure out the bottom line on the football looking one and how to bypass that line... anybody do this swap that can help

mike albo

you need to change out your heater control valve that will fix the problem.

Abovetimberline

x2,when i swapped mine I changed out the heater control valve to match the 91,cannot use the plastic bottle from the old system. I just removed it and put in place an overflow from a chevy car and ran overflow from the cap to the new bottle.

c-loss

If you look at the pics in my album it shows exactly how mine is set up. I moved the coil and all the relays from down low on the passenger side and mounted them up higher. Then with a little modifacation to a bracket for an open system pressure bottle it fit right in the factory place. Keeps some of the electrical **** dry to.

cherokeechief8891

i have a new heater control valve bought it cuz i heard you needed but didnt know what for until now lol i tried looking for it one day but couldnt find it... some where around firewall on the pass. side,, is it pretty easy to change out?

PingPong

I personally took the heatercontrol valve out. I ran hose stright from engine to heater core. Be advised one line is 5/8 the other is 3/4. Also it means you will have hot air almost all the time. Unless you turn on ac. I also carry a hose splice kit.. in case I have a failure.

cherokeechief8891

where is this darn heatercontrol valve!?!?!?!?!!! i think i found it but do i have to match the heater core? for the 91 heatercontrol vavle???

PingPong

IT is located on the pasanger side of the engine bay. IT will be approximately 6" off the firewall and have 2 hosses going in and 2 going out. One hose will be 5/8 and the other being 3/4. IT will have one vacumm hose going to it.