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 Post subject: How to change Y-pipe
PostPosted: Sun Jun 06, 2010 5:44 pm 
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Location: Toronto, Ontario
ok so i managed to remove (i wonder is that's appropriate) all the nuts but the Y-yipes flanges are not budging i have not tried heat yet since i only have my little map gas torches and space i tight (just like doing anything else on these engines) no space for me to get my pry bar in my punches aren't long enough to get all the way down to the flanges from inside the van i'm pretty tempted to take the torch to it and probably will in a hour but i need more idea's here

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1998 GMC Safari AWD, BFGoodrich AllTerrain T/A
Jet performance tuner 91 octane preset, Jet under-drive pulleys
Rancho 999000 series shock, on-board controller to be installed later
DHC rock rails and skid plate Add-A-Leaf
G3500 front calipers
Zexel Torsen Diff
11" drums
180 amp Alternator
Long tru-cool 4590 trans cooler

1997 in storage (project coming soon)
1992 Chevy Astro "Z" vin (engine/trans in storage body crushed)
1995 Chevy Astro need lots of help project vehicle


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 Post subject: Re: How to change Y-pipe
PostPosted: Sun Jun 06, 2010 5:55 pm 
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I sleep in my van

Joined: Fri Feb 16, 2007 8:37 pm
Posts: 282
PB Blaster..... smells nasty. Works great.

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1991 W41
1995 Astro - Now gone, I am Astroless.
1997 C1500
1989 9C1 Caprice
1997 Bonneville
1998 Olds 88 LS
http://forums.b-body.org - newly updated!


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 Post subject: Re: How to change Y-pipe
PostPosted: Sun Jun 06, 2010 6:11 pm 
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i actually used something called move it on the nuts worked great on everything else i've used it on, and smells really nasty when it burns off never thought of spraying that all over the flange and gasket/o-ring though

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1998 GMC Safari AWD, BFGoodrich AllTerrain T/A
Jet performance tuner 91 octane preset, Jet under-drive pulleys
Rancho 999000 series shock, on-board controller to be installed later
DHC rock rails and skid plate Add-A-Leaf
G3500 front calipers
Zexel Torsen Diff
11" drums
180 amp Alternator
Long tru-cool 4590 trans cooler

1997 in storage (project coming soon)
1992 Chevy Astro "Z" vin (engine/trans in storage body crushed)
1995 Chevy Astro need lots of help project vehicle


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 Post subject: Re: How to change Y-pipe
PostPosted: Sun Jun 06, 2010 6:51 pm 
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I sleep in my van

Joined: Fri Feb 16, 2007 8:37 pm
Posts: 282
Spray it, let is soak for 5-15 minutes and then a big rubber mallet...

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CD_S
1991 W41
1995 Astro - Now gone, I am Astroless.
1997 C1500
1989 9C1 Caprice
1997 Bonneville
1998 Olds 88 LS
http://forums.b-body.org - newly updated!


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 Post subject: Re: How to change Y-pipe
PostPosted: Sun Jun 06, 2010 6:56 pm 
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big rubber mallet is out of the question no space i'll go pound on it some more

edit: you know what i was thinking after i sprayed the flanges " is this stuff flammable?" thankfully it's not so if this fails i can still torch it without out any extra risk of fire

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1998 GMC Safari AWD, BFGoodrich AllTerrain T/A
Jet performance tuner 91 octane preset, Jet under-drive pulleys
Rancho 999000 series shock, on-board controller to be installed later
DHC rock rails and skid plate Add-A-Leaf
G3500 front calipers
Zexel Torsen Diff
11" drums
180 amp Alternator
Long tru-cool 4590 trans cooler

1997 in storage (project coming soon)
1992 Chevy Astro "Z" vin (engine/trans in storage body crushed)
1995 Chevy Astro need lots of help project vehicle


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 Post subject: Re: How to change Y-pipe
PostPosted: Sun Jun 06, 2010 9:13 pm 
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Posts: 2679
Location: Orlando, FL
Pull the wheels off and go at it through the fender well.

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1996 Safari SLX Hotair balloon transport vehicle


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 Post subject: Re: How to change Y-pipe
PostPosted: Sun Jun 06, 2010 9:24 pm 
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Location: Toronto, Ontario
... that thought did cross my mind while i was fighting with the driver side just now passenger side came off and pipe is moving around fairly easily but driver side flange won't budge if i had an air hammer i'm sure could have had it off. i'll try pulling the wheel after i eat but from what i remember from doing plugs there is a frame rail (i think) blocking most of the manifold

edit:i can see the flange through the wheel well but have to fight past brake lines to touch it still no go running out of time, patience and most importantly light i wonder if i can drive it to my mechanic with the y-pipe dangling from one flange (i swear its welded on this is nut) lol

Edit 2: well that's it i give up for the day it's going to be a really long trip to work tomorrow. Does anyone know how many hours of labour a mechanic charges to change Y-pipe?

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1998 GMC Safari AWD, BFGoodrich AllTerrain T/A
Jet performance tuner 91 octane preset, Jet under-drive pulleys
Rancho 999000 series shock, on-board controller to be installed later
DHC rock rails and skid plate Add-A-Leaf
G3500 front calipers
Zexel Torsen Diff
11" drums
180 amp Alternator
Long tru-cool 4590 trans cooler

1997 in storage (project coming soon)
1992 Chevy Astro "Z" vin (engine/trans in storage body crushed)
1995 Chevy Astro need lots of help project vehicle


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 Post subject: Re: How to change Y-pipe
PostPosted: Mon Jun 07, 2010 12:49 am 
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I sleep in my van

Joined: Fri Feb 16, 2007 8:37 pm
Posts: 282
You can't make contact with the pipe at all? I wouldn't try to hammer it down and off, just make contact with it to make the rust break loose...

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CD_S
1991 W41
1995 Astro - Now gone, I am Astroless.
1997 C1500
1989 9C1 Caprice
1997 Bonneville
1998 Olds 88 LS
http://forums.b-body.org - newly updated!


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 Post subject: Re: How to change Y-pipe
PostPosted: Mon Jun 07, 2010 1:44 am 
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Joined: Sat Jun 16, 2007 9:31 pm
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Location: Toronto, Ontario
I can't make good contact with the flange everything i have is either to long or to short so i can't put any force into the hits i soaked it again with the moovit hopefully it'll help by the time i come back from work tomorrow. i even tried my slide hammer with the 2 jaw puller attachment but having to hook it back on the flange after a couple weak hits is irritating.

on a side note i think i'm getting addicted to air tools i know what i'm buying next :supz:
http://www.toolfetch.com/Category/Air_T ... D31979.htm
http://www.princessauto.com/air/air-too ... hammer-kit

anyways back on topic anymore hints/tips or pointers are more then welcome

_________________
1998 GMC Safari AWD, BFGoodrich AllTerrain T/A
Jet performance tuner 91 octane preset, Jet under-drive pulleys
Rancho 999000 series shock, on-board controller to be installed later
DHC rock rails and skid plate Add-A-Leaf
G3500 front calipers
Zexel Torsen Diff
11" drums
180 amp Alternator
Long tru-cool 4590 trans cooler

1997 in storage (project coming soon)
1992 Chevy Astro "Z" vin (engine/trans in storage body crushed)
1995 Chevy Astro need lots of help project vehicle


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 Post subject: Re: How to change Y-pipe
PostPosted: Mon Jun 07, 2010 1:51 am 
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I sleep in my van

Joined: Sun Jul 01, 2007 4:37 pm
Posts: 283
Location: Hamilton, ON
Check out www.irtools.ca. The princess auto air tools arent worth a shit, been there done that. Ingersol rand is good stuff and not that much more money.


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 Post subject: Re: How to change Y-pipe
PostPosted: Mon Jun 07, 2010 2:01 am 
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Joined: Sat Jun 16, 2007 9:31 pm
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Location: Toronto, Ontario
only tools i've managed to break so far are mastercraft and unitool i have a lot of power fist stuff and none has failed me yet (that might be the key word though)

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1998 GMC Safari AWD, BFGoodrich AllTerrain T/A
Jet performance tuner 91 octane preset, Jet under-drive pulleys
Rancho 999000 series shock, on-board controller to be installed later
DHC rock rails and skid plate Add-A-Leaf
G3500 front calipers
Zexel Torsen Diff
11" drums
180 amp Alternator
Long tru-cool 4590 trans cooler

1997 in storage (project coming soon)
1992 Chevy Astro "Z" vin (engine/trans in storage body crushed)
1995 Chevy Astro need lots of help project vehicle


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 Post subject: Re: How to change Y-pipe
PostPosted: Mon Jun 07, 2010 10:14 am 
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Joined: Thu Sep 21, 2006 6:18 pm
Posts: 1306
Location: Woodstock, Ontario
ugh.. i hate doing anything with the exhaust. it's always rusted to crap and stuck together like there's no tomorrow. i generally wuss out and pay an exhaust shop to use the torches to get off whatever needs removing. then, with aftermarket 'oe type' re-install, occasionally you need to bump up pieces just by a hair in size. for the money, it's not worth the time/stress

example: mom's 90 new yorker. a month ago one of the welds started to separate on the resonator. i got some exhaust wrap (with the epoxy in it) along with some muffler cement. was under the car for 30min patching and viola. quiet. lasted 2 weeks and started leaking again further around the weld. gave me time to order in the res at work and brought it with me my next day off. replacing it would have taken me about 3hrs on one of those 31 degree hot humid days. getting the clamps off would be easy, separating the pipes from each other would not. took it to a shop and had the part cut off and re-installed for $50 cash, was done in 30min while i sat and read hot rod magazine in the waiting room with AC

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current rides:
04 Mazda 6 V6 5spd

vans owned: Image
97 Astro AWD (selling by summer .. i think) SOLD
99 Astro LS Sept 08 ASV VOM
94 Astro LT
93 Astro LT
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 Post subject: Re: How to change Y-pipe
PostPosted: Tue Jun 08, 2010 3:32 pm 
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Joined: Sat Jun 16, 2007 9:31 pm
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Crash your awnser was corret take it to a shop I ran out of patience and I am now at my mechanic

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1998 GMC Safari AWD, BFGoodrich AllTerrain T/A
Jet performance tuner 91 octane preset, Jet under-drive pulleys
Rancho 999000 series shock, on-board controller to be installed later
DHC rock rails and skid plate Add-A-Leaf
G3500 front calipers
Zexel Torsen Diff
11" drums
180 amp Alternator
Long tru-cool 4590 trans cooler

1997 in storage (project coming soon)
1992 Chevy Astro "Z" vin (engine/trans in storage body crushed)
1995 Chevy Astro need lots of help project vehicle


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 Post subject: Re: How to change Y-pipe
PostPosted: Mon Jul 12, 2010 2:40 pm 
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I finally get the smurf thing

Joined: Mon Jun 01, 2009 1:52 am
Posts: 153
Cobra wrote:
Crash your awnser was corret take it to a shop I ran out of patience and I am now at my mechanic


I once tried to replace my cat converter. Saw'd off the old cat with a dremel tool. Replaced that ($70) plus several flexi exhaust pieces ($40) plus several clamps (another $40) plus 3 pkgs of muffler tape ($15).

A few months later, I went to a local, family owned, muffler/glass place to have them "clean up" all my pieced together rigging. They REPLACED the cat, got rid of all the rigged pieces and clamps, bent and welded in new exhaust pipe where appropriate, installed new hangers etc. In effect brought it up to OEM (and legal) specs. Total cost at the shop $140. Done in about 45 minutes.

Point of my experience - they did a better job for less money than I needed just to buy the parts.


Lump


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 Post subject: Re: How to change Y-pipe
PostPosted: Mon Jul 12, 2010 4:52 pm 
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I plan to be buried in my van
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Joined: Sun Sep 10, 2006 2:14 am
Posts: 1296
Location: Exeter ON
After a few tries, I generally will not do exhaust work on our vehicles any more.

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Jim
1997 GMC Safari RWD, Power Windows and Locks, 7 passenger, a/c, rear heat

http://rileysowner.blogspot.com/


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