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Topic: My exhaust broke

in Forum: C3 Fuel, Emission Control, and Exhaust Systems


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My exhaust broke (38/48)
 10/10/08 9:42pm
acplus
Former Member

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, - Canada

Vette(s):
1972, 1980


Joined: 6/23/2008
Posts: 558

just to mention...if you do switch to the Magna Flow Mufflers you will need to expand the the tips to 2.5" Muffler shop can do this for you.

John
My exhaust broke (39/48)
 10/10/08 10:22pm
acplus
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, - Canada

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1972, 1980


Joined: 6/23/2008
Posts: 558

Sorry....That's if you get the 2.5" outlet.
My exhaust broke (40/48)
 3/29/09 5:19pm
Adam WartellLifetime Member
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Eagleville, PA - USA

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Used to own a 1979 Corvette now owned by JB79


Joined: 11/1/2001
Posts: 17641

After talking to someone at work who convinced me to try this myself, and with the warm weather today, I put my 79 on jack stands and managed to get the exhaust (from after the cat to the back) off.  WD-40 works wonders on rusty bolts!  I only had trouble with one bolt, but still came off without breaking. 
 
Then I finally opened the giant package that my wife has been on my case about that has been sitting in the garage since indy99 sent it to me.  I confirmed that the rear y-pipe he sent is an EXACT replacement.  So I'm good there.  The front y-pipe is definitely not going to work (as we suspected).  So I still need to find a home for that pipe. Any takers? Plus, since my front y-pipe ain't broke, I'm just going to leave it as is.
 
Issue 1: The cat indy99 sent me is exactly the same in length (front to back) and looks like will match up at the correct bolt points.  However, it is MUCH smaller in girth than the one I have now.  Is this correct for a 79 cat replacement?
 
kdaddy is sending me his 2 year old MAM mufflers.  So I'm waiting for those to come to put everything back.
 
Issue 2: which I think I already know the answer to... being that I manged to get these replacement parts for peanuts, and now I'm doing the labor myself, should I just splurge and buy new clamps even though I got the old rusty ones off without breaking?
 
Thanks to all those that have helped me though this so far, and especially to indy and kdaddy for the parts!!!
 
 


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-Adam Wartell
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My exhaust broke (41/48)
 3/29/09 6:33pm
Ron 78Lifetime Member
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BINGHAMTON, NY - USA

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Buy new clamps,dont cheap out now LOLLOLLOL,and when you put them on ,point the u-bolts up instead of down if possible,it looks neater

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My exhaust broke (42/48)
 3/29/09 6:47pm
indy99
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Newport, MI - USA

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1980 L-48 still in the middle of a frame-off.


Joined: 6/9/2005
Posts: 932

Get the clamps. It will complete the system.  Buy at the local auto parts place.  The cat is fine as is.  I put anti-seize on all of my bolts when I put them together.  You might be able to trade the front Y with somebody for the correct one and keep it on hand as a spare.

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Corvettes and women are the same...You want to make love to them but they keep breaking down.
My exhaust broke (43/48)
 3/29/09 7:44pm
Adam WartellLifetime Member
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Eagleville, PA - USA

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Used to own a 1979 Corvette now owned by JB79


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[QUOTE=indy99]Get the clamps. It will complete the system.  Buy at the local auto parts place.  The cat is fine as is.  I put anti-seize on all of my bolts when I put them together.  You might be able to trade the front Y with somebody for the correct one and keep it on hand as a spare.[/QUOTE]
 
What do you mean the cat is fine as is?  Mine, or the one you sent me?


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-Adam Wartell
NCM Lifetime Member #1222
Founder: C3 Vette Registry 
C4 Vette Registry, C6 Vette Registry

My first Vette, now owned by JB79:

My exhaust broke (44/48)
 3/29/09 7:55pm
indy99
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Newport, MI - USA

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1980 L-48 still in the middle of a frame-off.


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Posts: 932

The new one. Just put it on. I don't think that the smaller diameter is an issue.  You will have a great system with the mufflers from Kdaddy.

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Corvettes and women are the same...You want to make love to them but they keep breaking down.
My exhaust broke (45/48)
 3/29/09 10:45pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

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#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas


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A lot of replacement cat converters are much smaller than original...I wouldn't worry too much about that. Technology has come a LONG way since '79....
If it bolts up, you should be good to go on that. New clamps would be best...just because yours came off otay don't mean they'll go back on and tighten otay. Might as well splurge, and spend the extra $2-3 each for the clamps...

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My exhaust broke (46/48)
 3/29/09 10:53pm
KDADDY79
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Dutchess County, NY - USA

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White '79 Corvette. It's a driver.


Joined: 8/27/2007
Posts: 2484

Adam,
I have two clamps I'll send along.
Kevin
My exhaust broke (47/48)
 3/29/09 11:18pm
Okie DudeLifetime Member
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Eastern Oklahoma County, OK - USA

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1980 Black L48 T-Tops


Joined: 1/3/2006
Posts: 1560

I can't believe you guys haven't hit on the obvious choice...











CLICK ON THE PICTURE FOR A HINT
dnv2009-03-29 20:20:00
My exhaust broke (48/48)
 3/30/09 7:40am
DaveMLifetime Member
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Flanders, NJ - USA

Vette(s):
1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.


Joined: 1/27/2004
Posts: 2552

Adam, you will feel the difference with a new cat on there. I'm sure the old one is pretty well clogged up. By the way, and this also answers your question about why people join and stay on this site! Very generous guys!
Dave


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