Exhaust manifold

[fiero1]

My 85 GT has a cracked exhaust manifold would anyone know where i can locate one @ just by chance is their a way that i can replace it @ not bring down the cradle ..thx

[FieroDough]

front or back manifold? Were is the crack and how big?

it can be replaced with the engine in the car from underneath. Your concern should be the studs snapping off. that sucks. Happened to me. You have to drill / tap them out. If that happens the heads need to come out.

save yourself some headaches. For a week beffore you get it fixed, every night go spray the bolts with penetrating oil. NOT WD40! that stuff blows.. get a real good penetrating oil like PB Blaster or something like that (can be found at princess auto for like 12 to $15 a can)

cross fingers.. if no bolts snap, replace with NEW saturn studs!

Good luck!
Eric

[fiero1]

Thx Eric anything is worth a try i had the cradle out twice to do work & i really dont care to do it a 3rd time.Did you repair your manifold or replace it,mine was already repaired but the weld did not hold.

[FieroBUZZ]

I have a set here (2..  One has been welded so it's likely the back one    Free if you want it.

Eric, I checked the Saturn dealer and they have replaced the part numbers quoted throughout the web in USA.  The parts here are horrendously expensive, if what I got quoted is the right thing.
Gary

[FieroDough]

*whispers* yeah, they are expensive. Lucky for me home depot sells long bolts with same thread. Side cutter to the head and we have a stud.  $1.25/grade 5 bolt, 0.19 for the nut.


Cheers!
Eric

[fiero1]

Hi thx for the offer i'll grab them but the one that is now leaking was welded @ it let go again im wondering if when it rain this may be a possible problem for this manifold oh well like i told you i will gladly take these of your hands but im also wondering do they make headers for the 2.8?

[FieroBUZZ]

Yes, the cracks come from cold water hitting the hot manifold when you open the deck.  It will eventually happen to them all. The ones I have were bought to port and the guy didn't bother to mention that one had been already welded.

Removing the internal obstructions in the manifold should give 8 - 10 horsies.  A set of headers will be about the same but are pretty expensive.  The general thought is to port the stock manifolds and replace as needed.

West Coast Fiero makes 'shorty' headers, the Fiero Store in the US may have some too.  I saw a site once where a guy custom makes them and they are nice, but $$$$$$$.

[Boy-z]

Gary I have to get out to your place one day, what do you have there a fiero store. lol

[mudslut]

Actually I might have some.....
And I have a question:
Do the V6s come with different exhaust manifolds??
My engine has steel ones (one is cracked incidentally) but I have a parts engine that has iron ones??

[FieroBUZZ]

Welcome to our little group,  'mudslut'  (we don't want to know, but probably will ask later)  


As far as I know, the Fiero ones are the tubular steel.  The cast ones may be due to the use of a replacement motor.(not sure).  All of mine have been steel.

Gary

Claude got a set but he may want something in better shape, if available.

[fiero1]

Hi Gary,conserning the manifolds you gave me look to be ok & beleive me i really appreciate you giving me this pair the car should be pulled of the road at the end of October weather permitting & im going to have them slapped on during the winter months if the crack again well so be it then we go to plan "B"..........

[mudslut]

hmmmm....thats interesting....
I wonder if the cast iron ones would be better??

BTW the Mudslut thing is cause I'm into 4x4 and have a few big trucks as well as a Fiero