home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: rec.autos.tech
- Path: sparky!uunet!news!wrs.com!johnson
- From: johnson@wrs.com (David Johnson)
- Subject: Re: Turbocharger Rebuild
- Message-ID: <johnson.714102780@wrs.com>
- Keywords: Turbocharger
- Sender: news@wrs.com (News Manager)
- Nntp-Posting-Host: indus
- Organization: Wind River Systems, Inc.
- References: <1992Aug17.023456.9980@augean.eleceng.adelaide.edu.AU>
- Date: Tue, 18 Aug 1992 01:53:00 GMT
- Lines: 52
-
- abeaumon@augean.eleceng.adelaide.edu.AU (Andrew Beaumont-Smith) writes:
-
- >shaft has 25 thou play in it. I have read the book by McInnes (?sp) on
-
- I've taken the t3 of my 2002 and have been able to wiggle the shaft till
- it touched the housing (maybe that's where the throttle lift smoke was
- coming from :-), so I couldn't tell you if 0.025 is acceptable or not.
-
- >turbocharging (HP books) which says 4 thou is normal for floating bearings.
- >All other parts (housings, impellers, wastegate, actuator) appear good.
- >I spoke to a shop who deals in them, this is what he said:
- >1) Rebuild kits are available (at $200) - includes bearings and seals
- > but they are a recent addition and are generally not 100% successful.
-
- Sounds like you're getting reamed. At Diomond Diesel here in the
- SF Bay Area (510 area code), the rebiuld kits are about $100.
- Give them a call.
-
- >2) Buy a new guts - cost $800. [NOT!]
- >3) Buy a good second hand unit $450. (how good??) [NOT EVEN!]
-
- >What is wrong with rebuild kits?
-
- Nothing! They wouldn't make them if there was.
-
- if the shaft is ok, is it a simple job to replace bearings and seals?.
- Is any special equipment required ?
-
- Yes, they are very simple. The only special tools needed are a good pair
- of internal ring pliers. Don't worry about screwing up the exhaust housing
- bolts when you dissasemble, there are new ones in the rebild kit.
- Heat also works wonders on the stuborn little bastards...a nice deep glow :-)
- When you get the exhaust housing off the body take the thing down to the
- tool store to get the right pair that fit. Don't get the multi-tip ones,
- they'll just snap right off.
-
- >Any special things i should look for when i disassemble it?
-
- After you take it all apart, dip the sucker in carb cleaner for a couple
- days to loosen up the coked up oil. When you rinse it off, run water through
- the oil supply line. Chances are that you'll see two nice streams of water
- shooting through to the bearings. If not, prod up through the grove in the
- bearing surface with a pick and clean out the line that is now clogged with
- coked oil. Basically scrape all the crap out of the thing (it builds up
- everywhere. It may look like the metal housing, but give it a scrape, and
- it crumbles to dust. Putting back together is a cake walk too :-)
- Just don't over or under tighten the impeller nut, and be careful, the
- exhaust impeller is as fragile as glass (sounds like the voice of experience:-(
-
- Good luck,
-
- DAVE (johnson@wrs.com)
-