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OST-069: Transformation
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11-12-2020, 11:04 PM
Post: #4
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RE: OST-069: Transformation
(11-07-2020 10:34 PM)banpei Wrote: Maybe I have missed this, but you have a big tumble cleaner that are large enough to fit engine heads? No, one of the machine shops I use has a large "tumbler" - large enough for blocks! The tumbler is partially filled with zinc shot. They close the lid and the head is dragged repeatedly though the zinc shot. Porting begins.... #1 on the right, had a bit of a step left after the factory machining, I cut this back and smoothed it out. On the left, #2, adjusting the seat and bowl ![[Image: AEU86 AE86 - RE: OST-069: Transformation]](https://gallery.ostportworks.com/albums/userpics/10005/intake_side__1_and__2_2_panel.jpg "AEU86 AE86 - RE: OST-069: Transformation") I frequently have to "fix" core shift, here is a prime example from the exhaust side ![[Image: AEU86 AE86 - RE: OST-069: Transformation]](https://gallery.ostportworks.com/albums/userpics/10005/core_shift_correcting_2_panel.jpg "AEU86 AE86 - RE: OST-069: Transformation") 2 down... 2 to go.... ![[Image: AEU86 AE86 - RE: OST-069: Transformation]](https://gallery.ostportworks.com/albums/userpics/10005/2_down_2_to_go_chamber_view~0.jpg "AEU86 AE86 - RE: OST-069: Transformation") more to come...... 
Dan - You can |  .... OR you can ask for help!!!OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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