911 Valve Adjusters for my Type-4 2.0L?, Good Idea or Bad Idea? |
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911 Valve Adjusters for my Type-4 2.0L?, Good Idea or Bad Idea? |
ericread |
Jul 30 2009, 03:49 PM
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#21
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The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
Somewhere earlier I saw a comment that Jake had recommended using 911 Valve Adjusters in the Type-4 engine... Or maybe he had recommended against it. I can't remember.
Anybody out there have experience in this? My adjusters and adjuster nuts were pretty gnarled when I got my car a few years ago. Now with bi-monthly adjustments, I'm looking to replace them. Will the 911 adjusters fit the existing rocker arms? Do I need the same nuts? If I go ahead with this, should my properly adjusted valves run quieter? And is there any advantage to replacing the springs? As a result of some moderate leaky valve guides, my plans are to have the heads re-built this winter. Should I wait until the heads are rebuilt, or is there any reason I shouldn't go ahead with the adjusters, nuts and springs right now? Any thoughts? My thanks. Eric Read |
type11969 |
Aug 5 2009, 08:07 PM
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#22
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Senior Member Group: Members Posts: 1,231 Joined: 2-December 03 From: Collingswood, NJ Member No.: 1,410 Region Association: North East States |
I urge you to draw it out. If you don't have to add shims in order for the swivel adjuster to not bind through the sweep of the rocker, and the geometry was set correct from the start then the geometry will still be correct because nothing has changed. The rocker shaft is in the same position therefore the rocker is pivoting about the same point, the pushrod is the same length because you didn't change it and since the adjuster face is still .006" away from the valve stem as it was before the swap to swivels, then the geometry is still the same.
If you have doubts about your geometry being set correctly, then by all means check it. But if you are confident in your work then checking the geom is wasting your time because all you have done is changed what the adjuster looks like, not where it is. -Chris |
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