Hi all....longtime lurker p/t poster.. I have just about finished my swap when I fried a wire..waiting for the weather to warm up to see if it was a short due to old insulation or worse.. wire was replaced..on to the new I`ve put a boost gauge on and at idle it sits at 20hg while driving tho it barely made it to 0..driving easy tho b/c of the wire problem.. now I`ve found this item and I know its for the turbo..anybody know what it is and how, where to install it.. all I know is that its vacuum related....thanks in advance for any info
Vito
It looks a little different than my '88 T/C, but I'm thinking it is part of the waste gate control. There is a vacuum actuator that attaches to the waste gate that takes a feed or two off the intake (pre turbo) to a round box that assists in controlling the boost.
Anyway, if that is it, you need a manual specific to the year to make sure you have it hooked up correctly.
Tom
Swap is from an 87 merkur... thanks for the input.. so the way I have it hooked up then..vacuum straight to the wastegate, I`ll never build boost or will it never release boost? either way its not right.. more digging is in the works...should of bought the digi camera before the project!! :lol:
that is a gillis style manual boost controler. the nipple opposite the adjustment knob goes to he vaccuum tree and the other nipple that comes 90 * off of it goes to the wastegate. the tighter you turn the knob in the higher the boost will be. as you have the vaccuum line run directly to the wastegate right now it should run 15 to 17 lbs of boost.
wow.. that was great 4cam I did a quik search and found this link.. explained it well and I thought I`d share http://www.turbobuick.com/forums/turbos-turbo-related-parts/263526-wastegate-operation-manual-boost-controllers-how.html but again thanks for all the input
Here is a link to the manufacturer's web site.
http://www.boostvalve.com/infofaq.html
Here is a site giving details on a Gillis valve installation on a Ford 2.3.
http://www.turbotbird.com/techinfo/GillisValve/GillisValve.htm
Besides controlling the top boost level, it keeps the waste gate fully closed until the boost setting is reached (unlike the Ford controls). This gives a little more boost prior to reaching the setting.
There is a tiny bleed hole on the valve body that allows the waste gate to close after the boost goes away. This bleed hole is easily plugged or can get painted over (check).
I seem to remember PintoTony mentioning that the valve should not be mounted directly on the engine. The reason given was that the engine vibration could unseat the ball check.
Have fun.
So I took apart the valve and cleaned it good..hooked it up like I should...boosts to 12lbs... my gawd...scary fun...nope just scary...lmao ;D
thanks everyone!!!!!