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Old 05-24-2014, 12:46 PM   #1
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Camshaft deviation both ways

So I finally have my car back on the road after a long winter of removing and reinstalling the engine, replacing the camshaft timing chains and pads, pumped up the 2 camshaft tensioners (no special Porsche tool), and set the cam timing by hand.
Now my camshaft deviation has changed from -1 and -9 to this:

My big question here is how does having one negative 4.5 and one positive 4.5 affect the performance. Should I (or a shop with the special tools) re-time the cams?
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Old 05-24-2014, 01:03 PM   #2
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Mine was a Porsche factory rebuilt engine in 2008 and one side is 3 and the other side is -3.
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Old 05-24-2014, 01:13 PM   #3
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Quote:
Originally Posted by NewArt View Post
So I finally have my car back on the road after a long winter of removing and reinstalling the engine, replacing the camshaft timing chains and pads, pumped up the 2 camshaft tensioners (no special Porsche tool), and set the cam timing by hand.
Now my camshaft deviation has changed from -1 and -9 to this:

My big question here is how does having one negative 4.5 and one positive 4.5 affect the performance. Should I (or a shop with the special tools) re-time the cams?
The OEM spec is +/- 6 degrees; you will be fine.
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Old 05-24-2014, 01:40 PM   #4
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Good. Thanks for this. Now I need to find my P0430 which suddenly appeared!
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987 air intake TB and plenum, Mantissport 2 litre sump, UDP, Bilstein B6 with H&R lowering spings, re71-rs for track, other stuff.
https://www.youtube.com/user/12shoes2
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Old 05-24-2014, 01:52 PM   #5
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Old 05-24-2014, 04:15 PM   #6
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Congrats, NewArt.
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Old 05-24-2014, 04:45 PM   #7
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Quote:
Originally Posted by NewArt View Post
Good. Thanks for this. Now I need to find my P0430 which suddenly appeared!
My P0430 experience:
http://986forum.com/forums/general-discussions/47002-calling-986-forum-master-mechanics-2.html
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