pulling turbo.........again
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More Turbo
Joined: Sep 2002
Posts: 515
Likes: 1
From: Windsor, CO
pulling turbo.........again
So, I just finally fired up my truck after doing a TON of work on it this week. And, its blowing oil out of turbo pedestal where the new o-rings were installed. So, I have to pull it again.
HOWEVER, I hope I can do this without unbolting the up pipes. Is this possible?
Reason I ask:
I just replaced the clutch with a new Valair SMF 400hp/900tq clutch. With the tranny out, I rebuilt my up-pipes and welded in some new Volant bellows. The upper flange on each up pipe is welded onto the up-pipe itself now. That makes it damn near impossible to get to those four bolts with the tranny in the way. Its hard enough without it bolt in.
So, can I pull the turbo off of the pedestal first? Then pull the pedestal without pulling the Y that the up pipes bolt to? I just rebuilt the turbo while it was out, so the bolts all have recent anti-seize on them. So, they should break loose easily.
If not, I may have to pull the tranny again. Which I do NOT want to do.
Is it possible?
Oh, and here are some pics of the up pipes I built:
HOWEVER, I hope I can do this without unbolting the up pipes. Is this possible?
Reason I ask:
I just replaced the clutch with a new Valair SMF 400hp/900tq clutch. With the tranny out, I rebuilt my up-pipes and welded in some new Volant bellows. The upper flange on each up pipe is welded onto the up-pipe itself now. That makes it damn near impossible to get to those four bolts with the tranny in the way. Its hard enough without it bolt in.
So, can I pull the turbo off of the pedestal first? Then pull the pedestal without pulling the Y that the up pipes bolt to? I just rebuilt the turbo while it was out, so the bolts all have recent anti-seize on them. So, they should break loose easily.
If not, I may have to pull the tranny again. Which I do NOT want to do.
Is it possible?
Oh, and here are some pics of the up pipes I built:
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
Well, you can pull the turbo off the pedestal, somebody here did it one time, but you need the pedestal like I have, which is rare or something.
Dont' try to pull the turbo without the pedestal.
Dont' try to pull the turbo without the pedestal.
Thread Starter
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More Turbo
Joined: Sep 2002
Posts: 515
Likes: 1
From: Windsor, CO
I wonder if there is in fact a difference in the pedestal height or a difference in how they seal. I cannot imagine there is though.
It seems to me that I could unbolt the lower four bolts from the bottom of the turbo, then unbolt the collector and it would slide out.
Oh well, what is one more day. FWIW, I am becoming efficiently good at working on these trucks. I've done too many in the last week to not have something go wrong. Its just that the up pipes I built were designed to never leak again, which is why I rebuilt the turbo while i was in there.
Lets see, I replaced the o-rings on the oil pan where the dip stick slides into it, rebuilt the turbo, deleted the EBPV, built the up pipes, installed the new clutch, pulled the oil cooler and rebuilt it with new o-rings, rebuilt the rear driveshaft with new u-joints, new output seal on the tranny, and several other things I cannot even think of right now.
I might as well just install the intercooler now too. I just got my E99 spyder yesterday in the mail.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
You can, getting the turbo back on is hard.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
if the o-rings are not pancakes when you take them off and are recent, you can re-use them.
If they have been on there a long time, replace them.
Remember, dont use parts store o-rings. Make sure you get the right ones.
If they have been on there a long time, replace them.
Remember, dont use parts store o-rings. Make sure you get the right ones.
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More Turbo
Joined: Sep 2002
Posts: 515
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From: Windsor, CO
They are Viton ones from guzzle. I just hope I didn't smash them
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Joined: May 2010
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From: Weldona, CO
With the design of the 94-97 where you have to pull and install the turbo with the pedestal attached, it is VERY easy to have one of the o-rings get pushed off to the side of the galley port. When the o-ring gets pinched between the block and milled surface of the pedestal, it will not allow full compression on the o-ring. This can hold for a short time but eventually the oil will work its way past the o-ring and it will leak.
I guess that is why Garrett changed the design in 99.
I think if I still owned one of the OBS trucks, I would always have an extra set of pedestal o-rings sitting around since it's such a PIA!
I guess that is why Garrett changed the design in 99.
I think if I still owned one of the OBS trucks, I would always have an extra set of pedestal o-rings sitting around since it's such a PIA!
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Specializing in Viton® o-rings and leak repair kits for the 7.3L and 6.0L diesels
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Specializing in Viton® o-rings and leak repair kits for the 7.3L and 6.0L diesels
(970) 368-4455 aka guzzle
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
I did have a set, now I cannot find them! =\
Thread Starter
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More Turbo
Joined: Sep 2002
Posts: 515
Likes: 1
From: Windsor, CO
With the design of the 94-97 where you have to pull and install the turbo with the pedestal attached, it is VERY easy to have one of the o-rings get pushed off to the side of the galley port. When the o-ring gets pinched between the block and milled surface of the pedestal, it will not allow full compression on the o-ring. This can hold for a short time but eventually the oil will work its way past the o-ring and it will leak.
I guess that is why Garrett changed the design in 99.
I think if I still owned one of the OBS trucks, I would always have an extra set of pedestal o-rings sitting around since it's such a PIA!
I guess that is why Garrett changed the design in 99.
I think if I still owned one of the OBS trucks, I would always have an extra set of pedestal o-rings sitting around since it's such a PIA!
I have two extra lower o-rings that came in the Garrett rebuild kit, but hopefully the Viton ones you gave me will be okay.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
Why do you have to pull the tranny?
I'm really confused? Unless your uppers going into the collector are to close to the rear pedestal bolts?
Pulling the trans is easy after you have done it 3 or 4 times. I can have mine out in an hour now. haha.
I'm really confused? Unless your uppers going into the collector are to close to the rear pedestal bolts?
Pulling the trans is easy after you have done it 3 or 4 times. I can have mine out in an hour now. haha.
Postmaster
Joined: Jun 2009
Posts: 3,420
Likes: 1
From: Maryland
i plan to make similar uppipes but for the upper flange part i am going to weld the current flange to to pipe so it wont move and use the factory gaskets because i dont see the need to fab the flanges while i have a perfectly good flange just weld em and be done with em
Thread Starter
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More Turbo
Joined: Sep 2002
Posts: 515
Likes: 1
From: Windsor, CO
i plan to make similar uppipes but for the upper flange part i am going to weld the current flange to to pipe so it wont move and use the factory gaskets because i dont see the need to fab the flanges while i have a perfectly good flange just weld em and be done with em
I'm all for welding to cast, but welding .090 wall to cast is another thing all together.
Thread Starter
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More Turbo
Joined: Sep 2002
Posts: 515
Likes: 1
From: Windsor, CO
I just reworked them though, so if they happens again, I should be able to make it work easier.