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944S cam profile (Read 1049 times)
ACSMAX
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944S cam profile
Mar 9th, 2018 at 6:33pm
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Hi

I have a 944S MY 87. I have changed the chain tensioner, and now I have to do the timing of the engine. The engine is aligned with the bottom and top and I have tried to draw the timing angles that I get when turning the engine. I have not found any information about timing on these type of camshafts. The numbers I get seems to way off the standard timings I have found for other cam types of the 944. I am kind of curious that cams have been reground at some time. Have somebody else experienced something like this?

The cam numbers are:
Intake: (944.105)(277.1R)(277.03)
Exhaust: (944.105)(275.2R)(275.03)
Where the parenthesis explain the number read (alongside)(alongside)(end of camshaft)

Best regards
Andreas

Link to picture of timing diagram:
https://www.dropbox.com/s/vfw9brw52xot1q9/Diagram.png?dl=0
  
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Catellus Engineering
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Re: 944S cam profile
Reply #1 - Mar 16th, 2018 at 2:23am
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Andreas,

The factory workshop manual describes the specification and procedure for adjusting cam timing for the 944S.  However, the procedure doesn't work very well.  In practice, what I have done is measure, adjust, measure again, adjust again, and you should get the correct lift at TDC with a couple iterations.  Good luck!
  

Kevin
Catellus Engineering, Inc.
catelluseng@gmail.com
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Jay Wellwood
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Re: 944S cam profile
Reply #2 - Jul 8th, 2018 at 6:51pm
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Are you using the installation tools?
  
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T_Ryan.
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Re: 944S cam profile
Reply #3 - Jul 15th, 2018 at 7:38pm
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