 Something I was working on today, 2L heads |
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| brer |
 Sep 20 2010, 12:41 AM
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Advanced Member  Group: Members Posts: 2,555 Joined: 10-March 05 From: san diego Member No.: 3,736 Region Association: None  |
Got to finish up a set of 2.0 heads today. This is a pair that only needed a bit of crack repair and were actually fairly easy to rebuild. Guides and seats were replaced first. Intakes were just out, but the exhausts were very close to some of the new guides I've used.
After seats are installed the chambers were run on the cnc mill. Running this program really highlights the variation in even virgin heads. Not only the basic shapes but also the depth of the chamber floors varies up to .050". The cutter milles the tops of the seats down and they were finished with a flat stone on the tops - see last pic. a few extra pics of the valve jobbing. Arbors are used to align the cutting tools to the guides and act as the center of rotation for all of the work done to the seats. 15 degree, 45 degree.... check the valve stem heights and they are ready for spark plug hole inserts. we had waist to chest high surf happening today and I spent my time on this. (IMG:style_emoticons/default/screwy.gif) Attached image(s)     
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| rick 918-S |
Sep 20 2010, 04:45 AM
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Hey nice rack! -Celette Group: Members Posts: 20,463 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region 
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man that's nice! (IMG:style_emoticons/default/beerchug.gif)
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| SirAndy |
Sep 20 2010, 11:13 AM
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#3
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Resident German Group: Admin Posts: 41,651 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
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