Heater core bypass valves?

[rusty ol ranger]

86 Bronco II

My blend door lever is broke tottally.

I was pulling dash to replace the box but i have a question...

If i set the blend door to heat and install a couple shut off valves on the heater hoses....would i need to install some kind of bypass for when the valves are closed?

 

[rumblecloud]

If you did have to do a bypass you could prolly rig something using like a 3-way ball valve? But then I'm not sure where you would install them. Easiest is under the hood but then...

 

[rusty ol ranger]

If you did have to do a bypass you could prolly rig something using like a 3-way ball valve? But then I'm not sure where you would install them. Easiest is under the hood but then...

I found a cable operated one....im wondering if i can rig it up to the factory controls...

Heater Bypass Valve Kit - Cable Operated #50-1553 | eBay

Old Air Products Heater Bypass Valve Kit - Cable Operated. Heater valve fits 5/8" heater hose, with sleeve adapters for 3/4" heater hose applications.

www.ebay.com

 

[lil_Blue_Ford]

The later Rangers had vacuum operated heater bypass valves. Some had a single valve and some had the double valve, the double valve sends flow back to the motor and the singles don’t. I’ve been debating on rigging one up in my older stuff. On the newer stuff those only operate when you’re in the Max A/C setting and I’ve been debating if I want to try and modify it to be able to activate it whenever I want. Just that’s considered an additional creature comfort thing and I’m still trying to deal with the more important stuff

 

[rusty ol ranger]

The later Rangers had vacuum operated heater bypass valves. Some had a single valve and some had the double valve, the double valve sends flow back to the motor and the singles don’t. I’ve been debating on rigging one up in my older stuff. On the newer stuff those only operate when you’re in the Max A/C setting and I’ve been debating if I want to try and modify it to be able to activate it whenever I want. Just that’s considered an additional creature comfort thing and I’m still trying to deal with the more important stuff

Mine broke the actual piece that attaches to the blend door. It was stuck inbetween hot and cold. So all summer it was hot then winter i had no heat lol.