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Join Date: Aug 2008
Location: Fort Myers, Florida
Posts: 119
930 cam timing question

I'm in the process of setting my cam timing on my 1985 930, I have finished the left bank, and starting the right bank. Were I get confused, were do I start the right bank in relation to crankshaft position.

This is what I understand

1. Set crankshaft at Z1 #1

2. Set both L/H and R/H cams with 930/dot facing 12:00 straight up.

3. Set #1 intake valve clearance.


4. Rotate 360 set TDC overlap.


5. Rotate 360 back to #1 TDC at Z1


At this point I'm at #1 TDC at Z1 (step 1.) Question- Were do I start the process/are position the crank for #4

Old 06-09-2012, 06:36 AM
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Join Date: Apr 2011
Posts: 235
When you are at step 4 setting no1 overlap, set no4 clearance. When you rotate back to Z1 to bring no1 back to clearance, no4 will be at overlap.

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1988 930: 3.5L 100mm LN slipins, LN FFA rods, Supertec studs, GT3582R with T4 1.07A/R twin scroll housing, RarlyL8 equal length divided headers, dual Tial MVS 38mm WG's, Carrera 3.2 heads with 993 big valves. 964 Cams, full bay IC, KEP st1 clutch. PE3 sequential ECU with 750cc EV14 injectors, CoP twin plugs, J&S Safegaurd, Aquamist HSF3 water inj. Wavetrac LSD.
Old 06-09-2012, 04:24 PM
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