IROC5.7TPI

I was working on my car last night when I decided to replace the thermostat with a 160* instead of the 195* that was in there.

Everythings going well until I notice one of the waterneck bolts is giving a hard time. So I soak it in penetrating oil, followed by a little heat from the torch.

OOPS! broke it off in the manifold

Now I'm on my way to go try and EZ out the thing.

Wish me luck.

Any advice?



------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

Mo

dont brake the bolt extractor, very, very hard to drill through. Ended up drilling and tapping a new hole right next to it.

------------------
90 IROC 5.7l (L98)
ram air, K&N's, air foil,Flows

LIKE A ROC

http://members.nbci.com/IrocZgarage/home.htm

whiterocz

i did this same exact thing back in febuary. i finally got it out cause a little bit was sticking out and i heated it and got it out with vice grips.

IROC5.7TPI

Well guys....the co(ksucker won't come out

I tried WD40, I tried heating it, I tried EZ outing it, I tried drilling it but the bolt is hardened.

I am going to have to take the intake off...too bad I don't have the $$ for a good cam while I'm at it.

The good part is I ported the plenum the other day, now i'm going to do the lower when I get it off.



------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

89BlueTA

Iroc do you ever go to Milan Dragway?
I will be going in the next few weeks.

------------------
14.48@93.72mph

IROC5.7TPI

Milan is a little too crowded for me. I personally prefer Ubly Dragway in Bad Axe. Its just about as far for me as Milan, and you can get in more runs and the tech inspection is somewhat less extensive.



------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

raven350

Sorry I can't help you out on what to do,but....

Let me know if you guys go to the track, I haven't had my car out this year yet.

I am just putting on the finishing details to the fuel rails tonight. And hopefully the ram air tomorrow..

How are the tracks out here in Michigan? I have only raced at US41 in Indiana and Rte 66 in Joliet, IL...

------------------
Sportsman II 72 CC heads, Pete Jackson gear drive, Performance Resources chip, SLP 1 3/4" coated headers and Flowmaster exhaust, Trans-go stage 3 shift kit, Vigilante 9.5" 2800 stall convertor, SunCoast creation Functional Ram Air hood, SLP roller camshaft, 24lb ADS injectors, AFPR, 3.45 rear end gears, Stealth intake and 58mm setup, Spohn suspension, and other goodies...


raven

[This message has been edited by raven350 (edited June 11, 2001).]

IROC5.7TPI

In my neck of the woods, Ubly is the only track that I like.

Short tech inspection, short waits in the staging lanes, and a good prepped track surface is what keeps me coming back.

I will be going in the next few weeks when I get my car back on the road.





------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, Relocated MAT sensor, Gutted MAF, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, airfoil, Random Tech Hi-Flow Converter (soon to go byebye!). ALL STOCK otherwise.
http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

89BlueTA

I have never been to the bad axe dragway. Milan is getting a little crowded, though I have never seen a long tech inspection there, even when I worked there in high school. I took my car there on opening day in april and my car went 15.0's, needless to say I was very unhappy since I was expecting 14.3's. I found out a couple of weeks ago that the catalyst had plugged up the exhaust so I will be going back as soon as it cools down.

------------------
14.48@93.72mph

IROC5.7TPI

Update:

Well guys...after drilling for a while...I got the EZ-out to bite the bolt.

Afterheating the manifold and the bolt, I proceeded to crack the ear off the manifold. At least I got the bolt out

It left enough of it ( 2/3's) so that I could JB Weld it back together.

So here I am, waiting for the JB Weld to set up.

Back at it Sunday. The Gratiot Cruise is Saturday

See ya


------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, homemade cold air, Relocated MAT sensor, Gutted MAF, 160* thermostat, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, 3" MAC mandrel intermediate, custom dual !cat Y-pipe. airfoil, ported plenum. !smog

http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

Fastcamaro87

hey guess what, i decided to change my 195 to a 180 with four 1/8th inch holes drilled in it, and what happened? well u guessed it the back bolt of the t-stat housing broke off, so now there is a 3/8 in peice of bolt sticking out of the manifold, and iam racking my brain trying to figure out how to get it out, lucky me..... any ideas help, sympathy ... i am thinkin i might be able to put a nut on it and then weld the nut, and heat it up ,and pull it out, what u guys think??

------------------
87 IROC-z 305 TPI 5spd Borg warner 9-bolt 3.45 posi 4 wheel disc,8.8 Accel wires , bosch platinum +4 plugs,gutted air box K&N air filters,TB coolant bypass ,polyurethane tranny and torque arm mounts, K&N oil filter,Mobil 1 synthetic oil 10w30, futura GLS super sport tires 265/50/15 rear and 235/60/15 front mounted on 86 monte carlo SS rims ,

400 sbc and a 6 spd in the works

IROC5.7TPI

How much of its sticking up?

If theres enough for vise grips, just keep soaking it in WD40 then after a day or so of that, heat it with a propane torch and try backing it out.

If theres not enough left for vise grips, then use a centerpunch, mark the center of the bolt, and then start drilling it with a small bit.

Drill until you hit bottom. Then go back and re-drill with a bigger bit, almost as big as the stuck bolt.

Now take a punch and break the remainder of the bolt in pieces. This is how I got mine out.

I got everything back together and just have to go and put the upper rad hose back on and fill it with coolant.

It was a PITA, but after all that work it'll be back on the road finally.

I got to do a few things also while it was apart. I ported the plenum, cleaned the throttle body, and learned a lesson.....

I can now take the upper plenum off a TPI car in less than 10 minutes, including the throttle body and linkage.

Thanks for all the input.

Hope I could be of some help too.....



------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, homemade cold air, Relocated MAT sensor, Gutted MAF, 160* thermostat, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, 3" MAC mandrel intermediate, custom dual !cat Y-pipe. airfoil, ported plenum. !smog

http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

Vader

87,

Welding a nut to the stud might work, but the welding process will anneal the bolt, and more likely than not you'll twist off the newly welded nut due to the soft steel.

Instead, another option would be to grind or file the stud flat on top, center punch the stud, then drill and tap new 5/16-18 threads. If the tap gets tight, back off and clear out the hole. If you can't retap to the 5/16-18 size, drill the hole to allow a 7/16-14 tap (3/8" drill) or 1/2-13 tap (27/64" drill), tap the hole, and install a steel Jergen's thread insert with a 5/16-18 inner thread. You won't need a special Heli-Coil tap or installation tool, and won't ever have to worry about the fragile Heli-Coil insert wire spring getting fudged up. The inserts are a whopping two bucks each.

On a side note, don't any of you people believe in anti-sieze compounds yet? Or are you going to continue to snap off bolts in aluminum for the rest of your lives? Just askin'...

------------------
Later,
Vader
------------------
"Let the bodies hit the floor!"
Adobe Acrobat Reader

[This message has been edited by Vader (edited June 16, 2001).]

IROC5.7TPI

Mine was a STOCK 195 thermostat. Looks like its never been changed

I replaced it with a 160* with 4 1/32 holes in it.

Surprisingly, no nasty buildup was in the coolant passage. Very clean. Then again, I have maintenence records that show the original owner flushed it every spring.




------------------
Mike L.

"If it feels good - stay in it "

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, homemade cold air, Relocated MAT sensor, Gutted MAF, 160* thermostat, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, 3" MAC mandrel intermediate, custom dual !cat Y-pipe. airfoil, ported plenum. !smog

http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

Fastcamaro87

ok welding the nut on didnt work, so i went and got some mean a$$ drill bits, and drilled it out, goin from 1/4 up to 2 sizes before 3/8 , ran a 3/8 tap into it, and put a nice factory size bolt in with no probs, and no leaks, it is still a mystery to me , how i got it to stay the same size, but who cares, it worked!!, and i also know how to remove the upper plenum and throttle body within a few minutes, and yes anti-seize is now part of my life....

------------------
87 IROC-z 305 TPI 5spd Borg warner 9-bolt 3.45 posi 4 wheel disc,8.8 Accel wires , bosch platinum +4 plugs,gutted air box K&N air filters,TB coolant bypass ,polyurethane tranny and torque arm mounts, K&N oil filter,Mobil 1 synthetic oil 10w30, futura GLS super sport tires 265/50/15 rear and 235/60/15 front mounted on 86 monte carlo SS rims ,

400 sbc and a 6 spd in the works