Valve adjustment with swivel foot adjusters |
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Valve adjustment with swivel foot adjusters |
Geezer914 |
Nov 1 2021, 09:19 AM
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#1
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Geezer914 Group: Members Posts: 1,460 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
When adjusting valves with swivel foot adjusters, are you adjusting them with "0" lash or .004 that Porsche recommends? My thinking "0" lash does not allow for heat expansion and the valves will not fully seat. (IMG:style_emoticons/default/popcorn[1].gif)
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Geezer914 |
Nov 1 2021, 11:35 AM
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#2
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Geezer914 Group: Members Posts: 1,460 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
So you are saying chrome moly pushrods don't expand? Every solid lifter engine I have owned specified a valve lash?
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GregAmy |
Nov 1 2021, 11:56 AM
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#3
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Advanced Member Group: Members Posts: 2,311 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States |
So you are saying chrome moly pushrods don't expand? Chromoly pushrods expansion is comparable (actually, slightly less) than that of the head/cylinder stack expansion, thus no cold valve clearance is needed. Aluminum (stock) pushrods expand more than that of the head/cylinder stack expansion, thus need cold valve clearance so the valves aren't being held open after the engine heats up. If you disagree, then assuage your concerns by following the factory specifications. Worse thing you'll experience is noise and a slight (negligable) performance decrease. |
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