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jmatta

Teardown Pictorial of Boxster Engine

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Wayne Dempsey (Pelican Parts) and tech Tony Callas (Callas Rennsport) teardown a Boxster engine, step by step with pictures. Los of IMS coverage...pictures are worth a thousand words. Check it out...

http://www.pelicanparts.com/techarticles/B...terTech-162.htm

Here is a great site on rebuilding a M96 style motor. http://www.986fix.com/main.php

This guy rebuilt a Porsche motor and put a website for free on how to rebuild a Boxster motor after he was insulted by Porsche at thier offer to help fix it. This website has videos and high rez photos of a complete boxter engine rebuild.

D

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Jake Raby's site has some good stuff also.

http://www.flat6innovations.com/engine-failures-illustrated

And I think people on this site have also mentioned the info (especially on oil) at LN Engineering.

http://www.lnengineering.com/index.html

The more people attacking these engines the better off we'll be in the M96 community.

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What do the engine designations M96.21 and M96.22 mean? I know the M96 part, but is the .21/.22 the 2.7 and 3.2?

Thanks,

Steve

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What do the engine designations M96.21 and M96.22 mean? I know the M96 part, but is the .21/.22 the 2.7 and 3.2?

Thanks,

Steve

Engine codes as follows

M96.20 Boxster 1997 - 99

M96.22 Boxster 2000- 02

M96.23 Boxster 2003 - 04

M96.21 Boxster S 2000 - 02

M96.24 Boxster S 2003 - 04

Didn't Porsche begin using a dual row intermediate shaft bearing in the back in later engines? If so, in what engine?

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What do the engine designations M96.21 and M96.22 mean? I know the M96 part, but is the .21/.22 the 2.7 and 3.2?

Thanks,

Steve

M96.21 is a MY00, 01, or 02 3.2 liter Boxster S engine

M96.22 is a MY00, 01, or 02 2.7 liter Boxster engine

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Ok, Thanks. What's the code for 2005-08? I've been very curious to know what engine code/# the larger IMS bearings started with.

M97.20 for 2.7 liter

M97.21 for 3.4 liter (Cayman and Boxster S)

M97.22 for 3.4 liter (RS Spyder - 303 HP)

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Not to be annoying, but the M97 started in '07 correct? The '05-06 still had the 3.2L S engine, so are they still the M96.23/24 ?

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Not to be annoying, but the M97 started in '07 correct? The '05-06 still had the 3.2L S engine, so are they still the M96.23/24 ?

Yes, MY07.xx stared in 2007.

MY05 and MY06 are M96.25 and M96.26 (3.2 liter).

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What do the engine designations M96.21 and M96.22 mean? I know the M96 part, but is the .21/.22 the 2.7 and 3.2?

Thanks,

Steve

Engine codes as follows

M96.20 Boxster 1997 - 99

M96.22 Boxster 2000- 02

M96.23 Boxster 2003 - 04

M96.21 Boxster S 2000 - 02

M96.24 Boxster S 2003 - 04

Didn't Porsche begin using a dual row intermediate shaft bearing in the back in later engines? If so, in what engine?

Eric:

Stephen:

The LNEngineering website posted above has some good information on which years used which bearing arrangements for the IMS. Charles Navarro and Jake Raby have confirmed that there is no absolute way to determine whether a car has a double-row or single row IMS bearing without at least removing the transmission and the IMS flange. There are some published engine numbers for the type of bearing arrangement used, but exceptions have been found in the field. See the Pelican Parts website article for some of the numbers.

There seems to be no rhyme or reason for when they used what, except that generally they used the dual-row in the first few years of the 986, then went to the single-row bearing with the small nut, then threw in some more dual-row bearings, and then in late 2005 startied using the single-row bearing with the beefier nut and stud.

Regards, Maurice.

Edited by 1schoir

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Wayne Dempsey (Pelican Parts) and tech Tony Callas (Callas Rennsport) teardown a Boxster engine, step by step with pictures. Los of IMS coverage...pictures are worth a thousand words. Check it out...

http://www.pelicanparts.com/techarticles/B...terTech-162.htm

jmatta:

Thanks for the link! They did an excellent job of simplifying and de-mistifying the task.

Regards, Maurice.

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Thanks, I have been to the LN site, they seem to focus more on the eariler engines. From my reading there seems to be a definate cut-over date in late '05, but no one seems to know exactly when that is, which I find puzzling! Though it does seem that any '06 should be "safe", relatively speaking! (or at least updated)

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Thanks, I have been to the LN site, they seem to focus more on the eariler engines.

LN and my company work closely together..

Our focus is the whole of the M96/ M97 but with the earlier engines having more issues and more miles on them than the later engines, so we do have more interface with them. Most of the later engines are barely out of warranty, so our calls about these engines are increasing.

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