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Old 03-08-2015, 04:19 AM   #1
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M96 Camshaft Timing

Hi just installed my cams into the cylinder heads and can anyone give me the information needed for the camshaft timing on the M96 engine, boxster or 996.

lve seen some info on various sites but it seems very vague relating to pistons 4-6

Most say at TDC on the M96 engine piston 1 and 4 are at TDC or as some call it banks 1 (1-3 ) and bank 2 ( 4-6 )
and with the inlet cam notch pointing outwards on bank 1 and the notches on the exhaust cam inline with the cam covers, bank 1 is timed correctly which is fine, but what about the position of the inlet cam notch on bank 2 while the inlet cam notch on bank 1 is pointing outwards

No one seems to mention this and on the one article i did see on bank 2 was the inlet
cam notch had to be pointing inwards at TDC and again the exhaust cam notches inline with the cam cover, but again no mention where the notch on bank 1 one would be in relation to this.

At the moment ive got pistons 1 and 4 at TDC and bank 1 (1-3 ) inlet cam notch pointing outwards, exhaust cam notches lined up with the cam covers and bank 2 ( 4-6 ) inlet cam notch pointing inwards, exhaust cam notches lined up with the cam covers is this right.

Any help would be greatly appreciated.
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Old 03-08-2015, 11:38 AM   #2
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Do you have the factory tech manual Steve?
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Old 03-08-2015, 11:58 AM   #3
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No i don't jim, was hoping to find the info online like most things these days, but with this ive been caught out as there don't seem to be much info out there on the subject.
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Old 03-08-2015, 01:02 PM   #4
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do a search camtiming insite .He did an outstanding job of explaining
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Old 03-08-2015, 03:17 PM   #5
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Here the link for insite's post just in case you haven't found it.

DIY: Setting Cam Timing on M96
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Old 03-08-2015, 07:23 PM   #6
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Both marks point in OR both point out, depending on whether you are at TDC or at TDC exhaust. Bentley's and 101 Projects books are not clear on this.
If you plan to pull off both sets of cams at the same time, I can recommend using the procedure outlined in Porsche 986 Boxster Workshop manuals available in electronic version.
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Old 03-08-2015, 07:28 PM   #7
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Insites post is a classic. Follow it and you will not go wrong. Insite is One of the real diy gurus on this forum. Take a bow insite
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Old 03-08-2015, 07:35 PM   #8
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Quote:
Originally Posted by NewArt View Post
Both marks point in OR both point out, depending on whether you are at TDC or at TDC exhaust. Bentley's and 101 Projects books are not clear on this.
If you plan to pull off both sets of cams at the same time, I can recommend using the procedure outlined in Porsche 986 Boxster Workshop manuals available in electronic version.
Very good advice. Only follow the porsche shop manual, which can be a little hard to figue out, or insites instructions, where he has taken the workshop manual instructions and translated it for the average first time diy. Anything else is incomplete or just wrong.
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1989 (?) Alfa Romeo Milano
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Old 03-08-2015, 10:48 PM   #9
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Quote:
Originally Posted by NewArt View Post
Both marks point in OR both point out, depending on whether you are at TDC or at TDC exhaust. Bentley's and 101 Projects books are not clear on this.
If you plan to pull off both sets of cams at the same time, I can recommend using the procedure outlined in Porsche 986 Boxster Workshop manuals available in electronic version.
Cheers NewArt that was the answer i was looking for "Both marks point in OR both point out"

Yes did see insites post and it's a very good write up.

And thanks lads for all the replys, can install the motor now and hopefully she'll be running by next weekend

Last edited by whitecliffs; 03-08-2015 at 11:02 PM.
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Old 03-10-2015, 06:37 PM   #10
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Sometimes we're just looking for the simple answer!
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