Exhaust manifold gasket replacement, detailed with pictures. (Page 4/6)
Fieroseverywhere JUN 04, 12:43 PM
Very good write up. I have to replace mine in a couple of weeks...again. It has been a couple of years. I now have another crack in the front manifold.

Very good info. You got a + from me also.
F-I-E-R-O JUN 04, 03:12 PM
I have one bolt holding mine altogether. The previous owner was good at taking shortcuts when he replaced the gasket(s). So with at least 5 bolts to drill out, I'm thinking that not only do I have to drop the engine, but I'll just replace the head they "bolt" into using Rodney Dickman's bolts. (Maybe I don't have to drop it if I'm doing this- just work at it from the top?) Until then, JB Weld is my new best friend (apparently it was his as well). I found this stuff, wonder if it works any better than the JB Weld stick stuff I just used yesterday...



Description:

INDUSTRO WELD is J-B WELD in an economical shop-size package containing two 5-oz. tubes. Professionals in many industries use it to fix, bond, or fill -- in the shop, factory, or field. INDUSTRO WELD makes strong, permanent repairs when hot welding isn't possible or practical.
How does it work?

INDUSTRO WELD includes two tubes. One contains liquid steel/epoxy resin, and the other contains hardener. When mixed together in equal portions, a chemical reaction occurs that turns the mixture into a compound as hard and tough as steel -- and with similar properties.
Properties (psi)
Tensile Strength: 3960
Adhesion: 1800
Flex Strength: 7320
Tensile Lap Shear: 1040
Shrinkage: 0.0%
Resistant to: 500° F
How to use it:

Use INDUSTRO WELD as an adhesive, laminate, plug, filler, sealant, and electrical insulator. Squeeze out equal portions from the black and red tubes. Mix thoroughly. Clean surface to be bonded. Apply INDUSTRO WELD, and let it cure. That's all there is to it!

Like metal, INDUSTRO WELD can be formed, drilled, ground, tapped, machined, filled, sanded, and painted. It stays pliable for about 30 minutes after mixing, sets in 4-6 hours, and cures fully in 15-24 hours. It's water-proof; petroleum-, chemical-, and acid-resistent; resists shock, vibration, and extreme temperature fluctuations, and withstands temperatures up to 500° F. INDUSTRO WELD is super strong, non-toxic, and safe to use. Before it sets, you can clean up with soap and water.
jetman NOV 25, 10:47 PM
Here's a quick bump for the new folks who have been asking about their V-6 exhaust manifolds.

For those interested in porting their manifolds, here is an interesting write up on the subject.
Be sure to thank Ron for the excellent article.
http://www.fierofocus.com/a...exhaustmanifold.html

[This message has been edited by jetman (edited 02-12-2009).]

avengador1 NOV 25, 10:53 PM
If you need to fix stuff on the block or even aluminum parts try this http://www.aluminumrepair.com/ it has a higher heat resistance.

[This message has been edited by avengador1 (edited 11-25-2007).]

Dougie Murder NOV 26, 09:35 AM
Bookmarked!


+ for you Jetman

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Dougie Murder
85 Fiero GT
Romeoliquorstore.com
Myspace

jetman MAR 17, 08:05 AM
For reference, the exhaust assembly from cat back excluding trumpet horns is a Walker Exhaust part number 40094. The Fiero Store has them, ask for your 10% PFF discount, with shipping it is very close to the best price that I could find locally. It's always good to support the vendors that help keep our little cars running.

I mention this because I was quoted $494.00 for the exact part from a local muffler shop , tax and installation extra, that's 2-1/2 times the actual cost. Man alive, no profit magin there?!!

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jetman
Silver 86 SE 2M6 4-speed, with "check wallet light"

JesseM JUL 16, 08:36 AM
Thanks alot jetman, it was a really nice write up. i was wondering if at all possible, with patience, i could remove the bolts without breaking them? or is it just an inevitable doom? i plan on haveing the entire engine pulled when i do it, so i think it would be easier to deal with.
jetman JUL 16, 09:56 AM

quote
Originally posted by JesseM:

Thanks alot jetman, it was a really nice write up. i was wondering if at all possible, with patience, i could remove the bolts without breaking them? or is it just an inevitable doom? i plan on haveing the entire engine pulled when i do it, so i think it would be easier to deal with.



Your chances of success are much greater if the engine is out of the car, you'll have all the room that you need. Beg, borrow or rent an impact wrench, that'll really help break the bolts loose without snapping them. I just did an engine swap on my 88 Duke and none of my manifold bolts snapped, man alive, I'm a firm believer in an impact wrench. Maybe a phisics expert can chime in but I think it has something to do with the shock value of that tool.

Always easier to work outside of the car, thanks for the compliment, good luck and let us know how it goes, ok?
Kagen AUG 29, 01:41 AM
Thanks for this great thread, I've gotten all the bolts off except one thanks to pb blasting for a week ahead of time. The one i cant get is the pipe thats conected to the manifold, I took off all the 6 bolts that connect it to the engne block but now it has only the two bolts stopping it from coming out, everytime i try undo the bolt it seems like it twisting the manifold around, like now it isnt lined up anymore, twisted facing more of the trunk now, is it welded?
jetman AUG 29, 10:01 PM

quote
Originally posted by Kagen:

Thanks for this great thread, I've gotten all the bolts off except one thanks to pb blasting for a week ahead of time. The one i cant get is the pipe thats conected to the manifold, I took off all the 6 bolts that connect it to the engne block but now it has only the two bolts stopping it from coming out, everytime i try undo the bolt it seems like it twisting the manifold around, like now it isnt lined up anymore, twisted facing more of the trunk now, is it welded?



The nut is welded to the exhaust manifold. I had to cut the bolt off to remove the manifold and extract the bolt/stud later on the work bench. If you don't want to cut it off, try using some heat like a torch and quench it with PB Blaster, do this in repeated sequences. Be careful with the torch, don't set anything on fire, ok?
Thank you again for the nice compliment.