Turbocharger

 

From: F8LDZZ <f8ldzz@lava.net>
Date: Mon, 28 Oct 1996 19:54:07 -1000 (HST)
Subject: Re: [2nd] Turbo Removal

On Mon, 28 Oct 1996, Mike Gordon wrote:

> I am having difficulty removing the turbo from my '87 Turbo II.  Of the
> four studs holding the turbo on, I have not been successful in getting
> the one on the top front of the turbo out.  I can't seem to fit a 14mm
> socket nor a 14mm angled box end wrench.
> Any suggestions?

I hope you're doing this from below and/or gotten the "downpipe" (pre-cat 
if stock) off; this helps a lot!  It's very hard to get really good 
leverage from the top since the AC (if you have AC) line is in the way 
and also the heater core inlet hose is too.

The main problem you're having getting the top, back nut off is probably 
because the back pair of nuts have a "locking tab" bent into the nut 
itself, preventing the nut to back out for any reason.  I don't know how 
you got the other back nut off, but it's supposed to have the tab on it 
too; the tab(s) are actually a single piece of metal that spans both nuts.

---

>1987-88 turbocharger R & R:    11-20-96
>
>These parts should be replaced to prevent future oil, coolant, & exhaust
>leaks around the turbocharger area.
>
>Qty:   Part #:                 Description:
>1      N318-13-711A            turbo inlet gasket-exhaust
>1              491A              "       outlet       "
>1      N326-40-305             manifold outlet exhaust gasket
>4      9956-41-600             turbo water tube washers
>2      N318-13-164A            water tube gasket
>1      N318-14-280C            oil inlet tube
>2      N236-13-631               "      "     "    gasket
>1      N236-13-638             oil drain gasket
>7      370.08                  hi-temp 10mmx1.5 nuts
>7      407.M08                 10mm flat washers
>2                              12mm lock nuts
>5 '                            3.5mm silicone vacuum line
>
>Optional:
>1      N319-13-220A            turbo inlet duct
>1      N318-13-546             45 degree turbo coolant return hose
>1      N318-13-772             BAC valve 20 degree hose
>1      N318-13-996             ACV gasket
>1      N318-13-461             engine to manifold exhaust gasket
>1      N326-15-186B            upper rad. hose
>1             "       185B             lower rad. hose
>1      FB01-61-213             heater return hose-to rad.
>
>** Replace all coolant hose clamps with screw type clamps.
>
>Misc. notes regarding t-ii service:
>
>       Whenever major service such as the turbo gasket job is done , it is
>recommended that anything that looks old or brittle is replaced.  The
>high underhood temperature in the turbo cars damages most rubber parts,
>and will require replacement.    Check the vacuum line going to the
>wastegate, can crack, causing excessive boost buildup, leading to engine
>failure.  Also, the turbo manifold cracks in the center portion in most
>cases.  95% of the time, reusable, but not always.  Since the pre-cat
>has to be removed anyway, good time to inspect or upgrade the exhaust
>system.  The cats do go bad in these cars frequently due to high exhaust
>temperatures.  Aftermarket exhaust parts are considerably less expensive
>than the ~$1600 OEM units, and offer improved performance and gas
>mileage.  Some are street legal, others designed for off road use only.
>
>More information available upon request.  For parts or tech questions,
>feel free to contact anytime.
>
>http://www/import-parts.com/parts/
>-Mark Schroeder          mazrx7@onramp.net
>Precision Import Products
>103 E. Polk 
>Richardson,  TX  75081

---

From: Mike Gordon <mikego@Attachmate.com>
To: "'list@teamfc3s.org'" <list@teamfc3s.org>
Subject: (FC3S) Turbo life (was: Fuel Cut and Overboosting Problems)
Date: Thu, 13 Mar 1997 07:53:37 -0800
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Sender: owner-list@mail.teamfc3s.org
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Reply-To: list@teamfc3s.org
Status: RO
X-Status: A

Dale writes:

>BTW, does anyone know how long a turbo will last if the proper 
cooldown
>cycle and stock/near stock boost levels are used???  I know turbos 
are
>notorious for being problematic (among non-car-enthusiast types), but 
is
>this more from not following a proper cooldown???  That's my guess. 
>Anyhow, I'm just curious how much more life the turbo's got in it.

Dale--my '87 T2 has 143k miles on it and I've put over 100k of those 
miles on it.  It still has the original turbo.  I always keep the 
turbo boost off until the temp gauge starts creeping up and always let 
it idle if I'm still doing Warp9 pulling into the driveway.  No turbo 
timer installed--just 3k mile oil changes.  I pulled the turbo a few 
months ago and other than some cracks in the internal housing wall 
that separates the exhaust flow, it's fine.  There is no axial or 
radial play to the turbo shaft.

YMMV.

Mike
'87 T2


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