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Review of the new Bentley Publishers Porsche 911 (Type 993) Carrera Se


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#1 JFP in PA

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Posted November 18, 2013 - 09:39 AM

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I recently had the opportunity to spend some time with the new Bentley Publishers Porsche 911 (Type 993) Carrera Service Manual for last of the air-cooled 1995-1998  cars.  As a shop owner, I know how expensive and difficult it can be to assemble and use meaningful technical resources to work on or properly maintain these cars.  The original Porsche manuals (now out of print) literally cost more than a thousand dollars when you could obtain legitimate copies; and most of the bootleg versions I have looked at on the internet are incomplete, often missing entire sections as well as any of the supplements and corrections that Porsche once issued to the set owners, not to mention the intellectual property issues associated with these questionable versions.

 

The 6 ½ lb. Bentley 993 manual is a well-organized and easily searchable hard bound volume that is extensively illustrated with many photos, most in color, as well as diagrams where appropriate.  It contains sections covering just about any service item, including multiple sections covering engine disassembly and re assembly, something that is sorely missing from even the later factory manuals for the 986/996 water cooled cars. It carries a full set of factory wiring diagrams, as well as over 60 pages on individual OBD II fault codes and their explanations. 

 

Is it perfect?  No.  As with all Porsche related service manuals, it assumes that the user has a modicum of both technical and mechanical skills, plus access to a good tool set that includes some of Porsche specialty tooling.  The OBD section, while very comprehensive, lacks the decision tree layout of the factory manuals that provide even a novice with a do this first, then this, then that approach to diagnostics.  But the OBD section is logically organized enough to help find the cause for the codes. There is one minor typo correction noted at review time (concerning how to check the oil level), but as with all Bentley manuals, each copy has an individual code number inside the back cover that allows the owner to register it online so that they will receive future updates as these are found and identified, and this error already has been corrected.  This is something you would not be getting with bootlegged information.

 

 At less than $150, it is an excellent addition to the technical library of any shop or car owner that will be working on these models.


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#2 Loren

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Posted November 18, 2013 - 09:50 AM

If you wish to order please use this link (and RennTech.org will get a small commission): http://astore.amazon...tail/0837617197


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#3 Richard Hamilton

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Posted November 18, 2013 - 11:33 AM

Like JFP, I was fortunate enough to receive a copy of the Bentley 993 Service Manual for review, so here are my ramblings on the same subject!

 

Having owned a 1994 993 Coupe (my first Porsche), I was looking forward to receiving this manual and doing this review.  It is the first Bentley manual I have owned, and my initial impression was that it is much bigger than I was expecting! 

 

Bentley_1.jpg

 

The physical qualities of the book are very good, and it is well indexed, making it easy to find what you are looking for.  The images and illustrations are excellent, and each procedure is covered in a logical, step-by-step manner which is easy to follow.  Being fortunate enough to have the factory manuals there are inevitable comparisons to be made, and the structure of the Bentley manual broadly mirrors the factory Repair Groups layout.  Those of you who already have Bentley manuals will recognise the familiar format:

 

Bentley_2.jpg

 

The purpose of this article is to review the manual, not to check all the content, so although I haven't read every word, I have looked through various sections in more detail from the perspective of an owner who would be using it for Do-It-Yourself tasks.

 

What immediately sprung to mind on first viewing was that the manual is very much focussed on the US market.  There are several differences which may confuse Rest of World 993 owners.  For example, service intervals on RoW cars are 12/24000 miles (20/40000km) rather than the 15/30000 quoted.  Also, all RoW 993 N/A Carreras retained DME2.1 throughout the production period.  Only the US & Canada cars changed to DME5.2 in 1996 do achieve OBD2 compliance.  Hence, RoW Carreras never had post-cat O2 sensors.  Also, the security devices and remote controls are region specific for most RoW cars.  For example, UK cars were fitted with UK-made immobilisers by the dealers prior to delivery.  Another small thing is that the VIN decoder doesn’t show the WP0ZZZ format of the RoW cars.  Having said all that, these are minor issues, as long as the owner is aware.

 

Starting at the Maintenance section, I noticed an obvious mistake in the way the oil level is measured.  The manual says to run the engine until warm, switch off, wait 3 minutes, and check the level.  This might be appropriate for the M96 and M97 engines, but certainly not for the 993, which like all the aircooled engines has a dry sump.  Bentley were quick to react when I notified them, and made a wiki page to show the correction:  https://wiki.bentley...rs.com/x/1gBWBw and a PDF of the corrected page is available to download from there.

 

What makes this publication so much nicer to use than the factory manual is the extensive use of photographs to illustrate the repair procedures.  Doing so means that descriptions are condensed, and sometimes unnecessary.  For most DIYers, we just need pointing in the right direction, and use our own common sense methods to get the task done.  The manual does this well, and also provides the detail when you need it, or get stuck.  Here are a few photos to show what I mean:

 

Bentley_3.jpg

 

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Again, comparing to the factory manuals, pretty much everything is covered, and certainly much more than most DIYers will ever need.  Engine rebuilding is covered in some detail, but I noticed that there was nothing on rebuilding the gearbox.  If you are like me, and find gearbox rebuilds something of a mysterious 'black art', then it probably won't be an issue.  Engines I can master - gearboxes are something I leave to those with the knowledge!

 

Particularly useful is the section on interior and trim removal and installation.  Items such as door cards, centre console, seats and other trim are covered, again with excellent photos and diagrams.  Apart from door glass, other glazing isn't covered.  Understandably, front and rear screen removal is a specialist job as they are bonded in, but it would have been good to see the rear side window removal and installation.  Having done this myself (to replace the lower black trims which had corroded), it just requires a sealant rather than adhesive, and I felt it was a task that other DIYers could achieve.

 

Also included in the manual are OBD diagnostic information sheets and a set of wiring diagrams, making the whole thing a very comprehensive package.

 

Bentley_5.jpg

 

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Overall, a great product, and to my mind a "must have" for the serious enthusiast.  It isn't cheap, with a cover price of $219.95, but in my opinion it represents good value for money.  Currently, there is a special offer, so be quick!


Edited by Richard Hamilton, November 19, 2013 - 01:56 AM.

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Current: 2012 Cayman 2.9 PDK in Meteor Grey, 1989 3.2 Carrera Sport Coupe in Guards Red
Previous: 2006 Cayman S, 2000 996 Turbo, 1998 996 C2, 1994 993 C2




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