Heater By-Pass Valving
Thread Starter
Melting Slicks
Joined: Feb 2001
Posts: 2,608
Likes: 3
From: TEXAS - you mean there are other states?
Heater By-Pass Valving
To actually be effective, you really need 3 valves. Correct?
What kind of valves do you guys suggest - With a Big Block and A/C - it is so cramped for space - so a few extra bucks on smaller, valves will be worth it.
Any pics or suggestions on locations is greatly appreciated.
I am thinking below the expansion tank have a tee fitting and the a valve before the heater core. On the other side (from the intake) a tee of course for the other side of the crossover by-pass, and below it another valve before the heater core. The 3rd valve would be in the crossover bypass area.
I hope this is understandable. :smash:
[Modified by kaiserbud, 11:00 PM 5/18/2003]
What kind of valves do you guys suggest - With a Big Block and A/C - it is so cramped for space - so a few extra bucks on smaller, valves will be worth it.
Any pics or suggestions on locations is greatly appreciated.
I am thinking below the expansion tank have a tee fitting and the a valve before the heater core. On the other side (from the intake) a tee of course for the other side of the crossover by-pass, and below it another valve before the heater core. The 3rd valve would be in the crossover bypass area.
I hope this is understandable. :smash:
[Modified by kaiserbud, 11:00 PM 5/18/2003]
Melting Slicks
Joined: Dec 2000
Posts: 3,407
Likes: 2
From: Carmichael CA
Re: Heater By-Pass Valving (kaiserbud)
Well, actuall...just one is necessary. It's a stock part for vettes with no A/C and available at most parts stores. You will need to get a vacuum T and connect it to the A/C, Vent, Heater vacuum switch. If you have an AIM then you can see the vacuum routing and decide where to tie into. If not then let me know and I can send you a diagram of the hose connections.
I actually installed a custom valve that doesn't block the flow...it has two input and two output lines so that it routes flow back around to the block and insulates between the heater core and bypass. I suppose it would also be a good idea to put a stop valve to prevent any flow from going through the bypass as well...I may install that this year.
[Modified by Rockn-Roll, 10:56 PM 5/18/2003]
I actually installed a custom valve that doesn't block the flow...it has two input and two output lines so that it routes flow back around to the block and insulates between the heater core and bypass. I suppose it would also be a good idea to put a stop valve to prevent any flow from going through the bypass as well...I may install that this year.
[Modified by Rockn-Roll, 10:56 PM 5/18/2003]
