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john924 · Joined: 08 May 2007 Posts: 50 Location: Wales UK

Okay I think it's safe to say the seals in the turbo have gone and now I need to remove it.

The car is in my driveway on stands and the easiest way to remove it is with the exhaust still attached (the exhaust studs are looking fragile)

What I need to know is how is the turbo attached (other than to the exhaust) and do I also need to remove the wastegate (hopefully not).

Diagrams more than welcome

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Time to get a manual, the turbo R&R is far too complicated IMO without one. Exhaust will need to be dropped, and wastegate removed. Aside from the conenction to the manifold, the turbo is attached to a bracket that is bolted to the block.

Also gather up your hardware. . .turbo-mani studs and nuts, turbo-downpipe studs and nuts, Jpipe-mani studs and nuts, Jpipe-wastegate studs and nuts, wastegate-exhaust studs and nuts, plus gaskets for each joint, all oil feed and drain gaskets/o-rings, and the rubber elbow for the turbo recirc valve.

Biggest PITA job I ever did on any car. But worth it!

Good luck,

rasta
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

Paul · Posted: Sun May 13, 2007 6:11 am Post subject:

If you also are nearing the end of your clutch's life, I suggest you pull the motor.
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

Lizard · Posted: Sun May 13, 2007 7:13 am Post subject:

you dont need to pull the wastegate, but I would recommend pulling as much as you can and draining the oil, imo it isnt a technically job and is very straight forward, just awkward.
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3 928s,

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

I wouldn't go to all the trouble of pulling the turbo without refreshing the wastegate.
_________________
Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

john924 · Joined: 08 May 2007 Posts: 50 Location: Wales UK

924guy · Posted: Sun May 13, 2007 11:14 am Post subject:

Wastegate R&R consists of replacing the diaphram, spring, and most likely the studs and definately the gaskets and locking nuts. like the rest, not terribly difficult, just a bit tricky and theres a good chance the studs and nuts will be rusty...
get the work shop manual, its well worth it...
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Eric
78 924
82 931 SE "smokey"
99' VehiCross
Y2K Honda Insight
http://www.cardomain.com/id/924Guy
Performance by Pasha

-nick · Joined: 16 Nov 2002 Posts: 2699 Location: Cambridge, MA

Step 1. Soak everything in PB Blaster overnight (at least).

You'll need good 12mm and 15mm sockets (and a u-joint + extensions) & open/closed end wrenches from what I remember.

The wastegate is a real nightmare if you have a 79/80 with the vent tube that follows the control line. The vent line bolt is in a terrible location to get to on the wastegate.

I agree though, you should take it off and check the diaphram when you pull the turbo.
_________________
1980 931S
15psi boost, MS-II, EDIS, 951 IC, custom intake, Ford 5.0L throttle body, Forge BOV, WB o2, G31 w/LSD, 964 wheels, 968 rear sway, Bilsteins, 200# Welt. springs. A laptop, and a partridge in a pear tree.
1991 964 C4 Cabriolet

john924 · Joined: 08 May 2007 Posts: 50 Location: Wales UK

Just to give you guys an update.

I managed to get the Tubo off it wasn't to bad really. Thought the oil seals had gone and it needed servicing but unfortunately when the head was rebuilt (before my ownership) it looks like something had been droped down the manifold and has bent and chipped everything in the heart of the turbo. I've been quoted £595 + taxes (approx $1200 + taxes) to have it rebuilt.

All is not lost a member of the 924 owners club has come to my rescue with a spare turbo (don't know much about it's history other than was working when removed from Car) but best of all he doesn't want anything for it (bargin).

My plan now is to get her back together get her though her annual test if the new turbo is OK.

Tigger937 · Posted: Sat May 26, 2007 12:22 am Post subject:

john924 · Joined: 08 May 2007 Posts: 50 Location: Wales UK

Removed all the bolts and took off the water pump and cam belt and out she popped.

john924 · Joined: 08 May 2007 Posts: 50 Location: Wales UK

Tigger937 · Posted: Sat May 26, 2007 1:00 am Post subject:

john924 · Joined: 08 May 2007 Posts: 50 Location: Wales UK

no brought it through where the fuel metering unit goes.

Oh!!!! had to drop the anti roll bar as well

Tigger937 · Posted: Sat May 26, 2007 1:30 am Post subject: