Shaft seals?

[TurboLaserRS]

Hey guys I have a question for you. I was at a car show a couple days ago, and I toyed with some big blocks. I hit full boost a couple times in 1st in 2nd, 'just playing'.
So I get home and park it, I hear a fizzling 'pssshh' sort of noise. I popped the hood and it is blowing coolant out of the back of the throttlebody (firewall side, towards the bottom of tb). What happened? I took the coolant line that goes into the tb, and hooked it to the tb outlet, now I have no coolant leak but my idle is like 1.2k which is just too high.
Did I blow my shaft seals in the tb?

 

[bryanwheat]

Sounds like you blew the gasket between the throttle body and fiav.

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[TurboLaserRS]

What gasket should I buy then? Guy at autozone just stared into space when I said fiav. They said well we have a throttlebody gasket and I told them, I don't think we are talking about the same thing here.
I searched around on the forum but I don't really see where anyones posted about this, atleast not from what I saw.

 

[snowborder714]

Assuming you still have a '90 throttle body, the part number for the FIAV gasket is MD614300.
EXTREME PSI : Your #1 Source for In Stock Performance Parts

Actually looks like this.

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If not, the '91-'99 part number is MD614406 and looks like the part Bryan posted.
http://www.extremepsi.com/store/product.php?productid=21445&cat=0&page=1

 

[19Eclipse90]

Edit: Yeah. What ^^ said.

The '90 version, assuming you still have the original throttle body.

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[snowborder714]

There are way too many Brian/Bryan's in this thread helping out

 

[19Eclipse90]

There are way too many Brian/Bryan's in this thread helping out

I'll be sure to refresh the page before posting next time.

 

[TurboLaserRS]

Thanks guys! I still have the 90' throttlebody I think.

 

[TurboLaserRS]

Well crap. I don't want to pay 6 dollars to ship a 5 dollar gasket. Autozone doesn't have them and can't get them. I'm sort of in a pinch here, can I just use high temp rtv? That's how I have my thermostat housing done and it doesn't leak. The idle is just too dang high so I need to fix this.

 

[bryanwheat]

Well crap. I don't want to pay 6 dollars to ship a 5 dollar gasket. Autozone doesn't have them and can't get them. I'm sort of in a pinch here, can I just use high temp rtv? That's how I have my thermostat housing done and it doesn't leak. The idle is just too dang high so I need to fix this.

You don't want to use rtv on this. Just spend the 11 bucks to get the gasket and fix it properly. The last thing that you want is the rtv to fail in a different spot and cause coolant to be sucked into the engine. The rtv can also get in the fiav valve and cause it to quit working.

 

[My1GLaser]

Can you block the FIAV and not have to worry about the gasket? I blocked the FIAV ports on my TB with RTV cause it sucks on a 20 yr old TB.

Not sure if the design is the same on the 90 and if that would work or not cause of the ISC passages. Its quick and cheap and somewhat reversible if you don't like how it acts without a (poorly) functioning FIAV. You can just loop the coolant lines if you block the FIAV...

Can you tell I don't like the FIAV? I have blocked it on all 4 TBs I've torn apart to do the shaft seals and haven't had any idle issues on 3 DSMs. I do keep the ISC passages intact.

 

[TurboLaserRS]

Thanks for the advice, but let me ask you this.
How will the absence of an ISC AND FIAV effect my car? My car does not start hard at all without the isc, honestly if I didn't tell you, you wouldn't ever know it was dead (and unplugged.) With them both missing, will I start running into issues with drivability? My Laser isn't my Dd, but its not a trailer queen either.

 

[bryanwheat]

Thanks for the advice, but let me ask you this.
How will the absence of an ISC AND FIAV effect my car? My car does not start hard at all without the isc, honestly if I didn't tell you, you wouldn't ever know it was dead (and unplugged.) With them both missing, will I start running into issues with drivability? My Laser isn't my Dd, but its not a trailer queen either.

It will usually cause cold starting problems. Most of the time you will have to sit there and give it gas for a bit until it starts to warm up and get out of the cold start enrichment.

 

[My1GLaser]

I retained my ISC more so because it helps keep the idle stable with load changes.

One or both fans kicking on, or coming to a quick stop from a higher rpm the ISC catches the rpms from falling too far below idle speed. (The fidanza FW has definitely made that more of a problem)

My car already has has cold start issues due to E-85, but its worth it