Turbo ecu - Page 7

SilvrEclipse · #91 02-17-2010, 02:32 PM

Im trying to figure out why your valve cover is black, it looks like the WG is dumping away from the VC. Do you have any exhaust leaks? Also you need to take that line off that runs to the VC breather. You will be pressurizing your crankcase everytime you hit boost

Cavalier9696 · #92 02-19-2010, 04:57 PM

Quote:

Originally Posted by SilvrEclipse

Even with no dump the wastegate shouldnt be letting out that much exhaust. It should only open at full boost which should be around 7psi or so. Is the WG leaking the whole time your driving? With the fire and you said the exhaust was filling the cabin that seems like it may be dumping the whole time.

I think it is dumping at all times. Have no idea why. Wonder if it is cause I had the vac lines hooked up wrong? You can crank the car and let it idle and when u turn the car off there is smoke coming from the WG. Trying to find some instructions on the web about it. My valve cover is black cause thats where the flames went when it came out of WG. What is VC Breather?

Cavalier9696 · #93 02-19-2010, 05:02 PM

Quote:

Originally Posted by david-b

Is there another spot on the Wastegate to hook up a line to, like lower down on it? I was looking at the pics and trying to find a pic of the same one with no luck. Almost looks like the compressor is hooked up to the spot where the boost controller would go.

Nope thats the only spot on the WG to hook line to. That pic I posted a page or 2 back shows some disks and a ring that came with the WG. Think the disks are to help stiffen spring. Don't know where the ring goes.

Cavalier9696 · #94 02-19-2010, 05:05 PM

Here is my WG. If this don't help I will take it off car and take pics. http://cgi.ebay.com/ebaymotors/ws/eB...56678&viewitem=

SilvrEclipse · #95 02-19-2010, 05:32 PM

that ring is the seal for the wastegate. Thats why you have a big leak. Thats also what makes the valve seal.

Cavalier9696 · #96 02-20-2010, 12:03 AM

Quote:

Originally Posted by SilvrEclipse

that ring is the seal for the wastegate. Thats why you have a big leak. Thats also what makes the valve seal.

K will put it on. The reason I didn't was cause my buddy said it wasn't needed. Guess I need to find a new car buddy.

Cavalier9696 · #97 02-20-2010, 02:27 PM

You know what silver, ur right. There are 2 holes for a vac line. One on top of WG which I had hooked up. And 1 on the bottom of WG.

david-b · #98 02-21-2010, 08:18 AM

You need a disc in there. As Silvr said, it seals everything up. Install that in and it will seal up. If not sure where it goes, there's plenty of diagrams online. Just search and they'll show a break down of it.

You want that vac line hooked to the bottom of the WG. It should be closer to the manifold. With it hooked to the top, you were feeding air on the backside of the WG that is then causing it to stay open. Although without that ring in there, technically it was doing nothing anyways.

Glad to see we're working out the problems one at a time.

SilvrEclipse · #99 02-21-2010, 11:53 AM

Actually Dave with the boost line connected to the top of the wastegate it wont open at all. It will just hold the valve shut and wont open no matter how much boost you put to it.

If he had hooked it to a vac line then yes it would have stayed open but he had it running from the compressor housing

Cavalier9696 · #**100** 02-21-2010, 03:00 PM

Well, I think WG is right now. I hooked the vac line on bottom of WG and put the ring in and there is no smoke coming from WG and it is so QUITE now..lol. Ya the top vac hole on WG has noway pushing air into it cause the disk on top on the spring is covering it up.

So just waiting on feed flange to come in for my feed line, then hopfull ready to go. Oh ya what did you hook your gagues to for the lights? The parking lights?

david-b · #**101** 02-21-2010, 06:41 PM

That kit had a feed fitting for the turbo..

Glad the WG is working right. The fact that it was loud when the car was running should have been a sign that it wasn't working right from the beginning.

I have all my gauges (except one)hooked up to the ignition wire off of the dimmer switch. It has 3 wires on it, forget which one is the right one but easy to test out. That way the gauges will only be on when the parking lights/headlights are on.

Cavalier9696 · #**102** 02-22-2010, 05:59 PM

Bad news. The car still smokes the same. After I put in the softest sping it tells me im -20 instead of -5 at idle(which my buddy says is good). I checked all my clams on my cooler and there fine. When I drove the car home it was at -5. Could the sping change make that much difference? And if I do have to rebuild turbo, how hard is it and is it cheap to do?

Now I have water in oil, white smoke and coolant dripping out of tailpipe from what it looks like. Headgasket? Cause my idiot buddy put the stiffest sping in waste gate. And I wasn't getting the right reading on gauge cause turbo wasn't on right. But man turbo sounded good spooling up, and BOV was hitting right and sounded good.

SilvrEclipse · #**103** 02-22-2010, 08:33 PM

Your talking about the boost gauge correct? You should see ~18 in.hg at idle. Did you boost the car when you first turboed the car? When everything was messed up on it? Whats the most boost you have hit so far? I doubt you hit hardly any boost with the first setup when the wg was leaking so bad.

Coolant in the oil is no good. Sounds like a headgasket. I would do a compression check on the motor is I was you. That about the only place to start.

Cavalier9696 · #**104** 02-22-2010, 08:58 PM

Quote:

Originally Posted by SilvrEclipse

Your talking about the boost gauge correct? You should see ~18 in.hg at idle. Did you boost the car when you first turboed the car? When everything was messed up on it? Whats the most boost you have hit so far? I doubt you hit hardly any boost with the first setup when the wg was leaking so bad.

Coolant in the oil is no good. Sounds like a headgasket. I would do a compression check on the motor is I was you. That about the only place to start.

Boost hits 5psi now. We couldn't tell what boost was hitting when we first cranked it cause we found out the first gauge I had was no good, it was around 10yrs old. Only after I bought the new boost gauge it was showing around 12psi cause my buddy was retarted and put the stiffest spring in. Thinking it may of been part of the cause.

IM going to take it to this good shop we have in town. He has worked on my car before. But if the turbo seals are blown, is it cheap and pretty easy to do?

ned032002 · #**105** 02-22-2010, 09:28 PM

Start searching online for turbo rebuild advice. There's a guy on Myspace and on tuners that does a great job rebuilding if that's what you need to do. I can find out his info again if you want it.

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