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Registered
Join Date: May 2006
Location: San Jose, CA.
Posts: 247
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How do I turn the Cam
How do I turn the cam to adjust the timing when the chain is on? This is on a 85 Carrera motor.
Thanks in advance John |
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05-02-2007, 12:50 PM
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Senior Member
Join Date: Feb 2000
Location: Lacey, WA. USA
Posts: 25,310
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Cam timing is WAY simpler than folks think. My recollection is that you don't turn the cam so much as you turn the crank. When you do the 180 degree rotating thing, if the timing is not correct, you turn the crank until the timing is correct, pull the pin, turn the crank back to TDC and reinstall the pin.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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05-02-2007, 12:52 PM
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Registered
Join Date: Aug 2004
Location: Littleton, CO
Posts: 543
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There are a series of holes in the cam sprocket. In one of these holes is a pin. Remove the pin (you can use a sparkplug) and the cam adjustment can be made.
Can I ask why you are adjusting your cams? Rich
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1976 911/S/SC/BASTARD Mid9 Member #12 |
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05-02-2007, 12:55 PM
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Registered
Join Date: May 2006
Location: San Jose, CA.
Posts: 247
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Hi Rick,
I'm rebuilding the motor and starting to put the cams together. John |
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05-02-2007, 01:13 PM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,453
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to move a 3.2 cam to where you want it, loosen the bolt, leave the pin in, and turn the crank until the cam timing is correct, then remove the bolt and pin and turn the crank back to Z1, and install the pin again and tighten the bolt enough to keep everything as is while you double check your adjustment. then finish tightening the bolt. this is best done with all the rockers in place with close to normal clearances, so the cam stays put when the pin is removed. it will not stay put with just one rocker arm installed.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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05-02-2007, 01:38 PM
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