Disconnected BCS...Slight Increase in Boost....Now what?

Topic: Disconnected BCS...Slight Increase in Boost....Now what? (Read 11540 times) previous topic - next topic

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #45 – June 30, 2007, 12:25:34 PM

Could you guys be more specific? I want to do this, but I have very little experience with the exhaust and locations. Anyone have a diagram of where this downpipe is and where the "Turbine Elbow" is?

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #46 – June 30, 2007, 04:16:47 PM

Otay ! I don't have a pic or anything but. The down pipe is the exhaust where it bolts up to the rear of the turbo. So crawl under that thing and loosen the 2 bolts that hold the exhaust pipe up to the turbo. Loosen them and let the exhaust pipe hang and go for a run. Oh yeah the turbine elbow if the rear side of the turbo where the exhaust bolts up to it. Don't worry there isn't a gasket between the pipe and the turbine housing. hope this helps you out.

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #47 – July 10, 2007, 08:20:17 PM

Well, had the local Exhaust shop weld me in a new Catalytic converter. While it appears to have solved the annoying rattle I was experiencing for the past few months, it did not solve my lack of boost problem. Which to me means only one thing. Something in around the Turbo is causing this.

Ok, if this were your guy's car, what would be the first thing to check?

I plan on taking off the "VAM" tommorrow, what problems should I be looking for while it's off? (I'm praying that it has a squirrel carcass in it)

Also, when I crawled under the area where the Turbo is, I thought I saw what was the WGA. I saw a round shaped metal object, with a Metal rod coming out of it. Since I can barely reach it with my arm, is there anything I should check for there?

BTW, is there any chance that the stock boost gauge just isn't reading correctly? And that I've been making 10psi this entire time?

(On a lighter note, the Exhaust guy told me the two bolts holding the end of the transmission and that rubber donut thing to the crossmember were missing.)

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #48 – July 11, 2007, 01:36:57 PM

Ok, after calling Ford and getting nothing but..."Well....you see son, we just don't have information like that anymore...and you really shouldn't be servicing this car by yourself"....I'm now turning to the forum for help:

I need to know what size bolts fit in the following mount that holds up the Transmission:

Thanks in advance if any of you can come up with the correct bolt size. Ford Couldn't.

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #49 – July 11, 2007, 03:05:44 PM

not sure of the size but lookin at the pic the right one looks broke off.

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #50 – July 11, 2007, 03:45:57 PM

Is your car an Auto or a 5-speed? I have a TC T-5 trans sitting in my garage, I could try and get the size for you.

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #51 – July 11, 2007, 07:28:30 PM

A4ld

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #52 – July 11, 2007, 09:04:24 PM

Well, after 8 hours, I was able to change out the two bolts. The cramped quarters made things very difficult. The bolt on the drivers side went in with no problems, the passenger side bolt however....the thread was stripped. Nightmare. That's what consumed the other 7 1/2 hours.

Seems to have fixed my floorboard vibration when the A/C is turned on. Things seem smoother.

Now, on a more serious note, I bypassed the Boost Controller Solenoid and spliced together the two Hoses. I drove around and the Stock boost gauge read out to about 7psi...slightly more than it has been. So it did increase the boost....slightly. I'm just wondering if I've been getting normal amounts of boost all along and that my gauge is busted. Is this common? Also, can I leave the two hoses spliced together without harming anything?

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #53 – July 11, 2007, 10:09:53 PM

Have you checked the WGA and flapper to make sure it's closing all the way yet?

NO.

Take the c-clip off the WGA arm that attaches it to the WG flapper on the turbo outlet elbow and see if it's keeping the flapper from sealing all the way. Here's a hint...if you take the c-clip off and remove the WGA arm and close the flapper with your finger, the WGA arm should not be able to reach the stud on the flapper. Technically you should have to pull on the arm (or apply some air pressure to the WGA to move the arm) to get it to seat on the flapper stud when it is fully closed.

We told you to check this weeks ago and you haven't. As usual.

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #54 – July 11, 2007, 10:22:15 PM

Apologizes, but I have no idea where that stuff is. If you have a diagram or something to show me where this C-Clip and WGA Arm are, that would be wonderful.

Thanks!

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #55 – July 11, 2007, 10:33:31 PM

You'd think you would have looked for this yourself as many times as it was mentioned to you.

You can see the flapper arm sticking out the bottom of the turbo. The WGA is the round thing partially obscured by the drain line.

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #56 – July 11, 2007, 10:43:18 PM

Thanks for the image. I see the WGA, and I think I see two "arms". Which one is which? And where is this "Flapper"?

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #57 – July 11, 2007, 11:03:42 PM

The flapper is up inside the turbo outlet....

Your IHI is a little different in that the flapper is not in the outlet elbow, but they function the same...

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #58 – July 12, 2007, 01:09:44 AM

you have been watching stock gauges and thinking they were close? Mistake number one..... Get yourself an autometer or something, they pop up on here or NATO for sale all the time, just be done with it!

Mistake number two, take what Chuck and people like him are saying for gospel and fix it :D

If you run a line from the wastegate to the turbo housing, that is an automatic 10# whether the gauge says so or not (as long as all else is working properly)... If you are going to use a gilles, just put it in the middle of the line then...

Frank M.

Disconnected BCS...Slight Increase in Boost....Now what?

Reply #59 – July 12, 2007, 10:50:14 PM

Please elaborate more on "Running a line from the wastegate to the Turbo Housing". Do you mean, take that rubber hose coming out of the Round diaphragm and connect it anywhere on the Turbo??