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Join Date: May 2005
Location: Cridersville, OH
Posts: 1,879
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964 cams in a 3.2l, cam shims?
Should I go ahead and get some extra cam shims to line up the chain? I've got the existing 3.2 shims but wondering if it's normal to have to add some for the 964 cams?
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75 911 Indian Red- RUFWAN2B 2000 Boxster 2000 & 2007 Dobies www.stahlwerks.com Cages and preparation for your Porsche “People who never make mistakes must get tired of doing nothing” Bill : The origin of the orgy of Porsche |
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02-26-2010, 04:49 PM
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Join Date: Oct 2008
Location: Nash County, NC.
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There is no absolute answer for the shims but these cams spec book quotes the numbers but its still for the builder to measure and be satisfied that the chains are running properly.
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02-26-2010, 05:03 PM
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Yea, I'm just wondering if there is a trend for the 964's using more or less.
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75 911 Indian Red- RUFWAN2B 2000 Boxster 2000 & 2007 Dobies www.stahlwerks.com Cages and preparation for your Porsche “People who never make mistakes must get tired of doing nothing” Bill : The origin of the orgy of Porsche |
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02-26-2010, 05:12 PM
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Join Date: Jun 2004
Location: SE Michigan
Posts: 128
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I just installed 964 cams in my 3.2 and NO change was needed to the shim stacks that were already there. Four on the right, three on the left, and the sprockets were aligned within spec (+/-0.25mm). I reused the sprockets, shims, washer, etc. from my stock setup.
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Mike '87 911 |
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02-27-2010, 03:00 AM
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Join Date: Sep 2007
Location: Wheaton, IL (Chicago 'burbs)
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Quote:
 Did you get your rockers in yet? Time to mate that engine with the new trans and take it for a spin. Not literally of course with all the snow you're getting.
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Ed '86 911 Coupe (endless 3.6 transplant finally done!) '14 Jeep Grand Cherokee 3.0 Turbodiesel (yes they make one) '97 BMW 528i (the sensible car, bought new) '12 Vintage/Millenium 23' v-nose enclosed trailer |
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02-27-2010, 05:22 AM
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Join Date: Jun 2004
Location: SE Michigan
Posts: 128
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Ed,
Yes indeed, these are special cams! Thanks much! (they came from Ed, so he would know....) You underestimate how incredibly slow I am. I found two hours to work on it yesterday, and got exactly two rockers in place (#1 & 4 intakes). Of course, cam timing took up a chunk of that time, but I am slow!
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Mike '87 911 |
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02-28-2010, 03:41 AM
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Join Date: Jan 2003
Location: Langley,B.C.
Posts: 12,009
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964 Cams...
964 profile ground on your original cams? 964 profile ground on new billets? 964 profile ground on donor core cams? 964 cams with the power steering nub ground off? As others have mentioned you need to measure the sprockets for parallel. Easy to do to and adjust. Cheers
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Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
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02-28-2010, 08:17 PM
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