OST-058: "Q"
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09-28-2019, 05:14 PM
Post: #1
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OST-058: "Q"
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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09-28-2019, 08:41 PM
Post: #2
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OST-058: "Q"
1983 - AE86 Sprinter Trueno - import project 2013 - Honda Civic sport - daily driver 2004 - AEU86 dot ORG - daily domain Support our forum, buy from the AEU86 shop: |
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10-01-2019, 12:12 AM
Post: #3
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OST-058: "Q"
(09-28-2019 08:41 PM)banpei Wrote: Not a whole lot going through my mind....... but of course 4AG head porting Recently I've acquired 5 20V 4AG heads. Two Silvertop, and three Blacktop One of the Blacktop heads went to a client in Indiana, this head is #2 from that lot.... and it is available.... disassembled, ready to get cleaned 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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10-01-2019, 08:26 PM
Post: #4
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OST-058: "Q"
the head came back pretty clean...
This was the first 20V head I spent any time on deburring the casting flash Most of the casting flash was around the spark plug tube supports, and in the end areas. Some of the area are purposefully cast with a ledge, those areas stand out around the exhaust side bucket cylinders 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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10-03-2019, 03:07 AM
(This post was last modified: 10-03-2019 03:07 AM by oldeskewltoy.)
Post: #5
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OST-058: "Q"
and so it begins.... biggest thing on a Blacktop head is core shift... you can kind of see it in top photo's short radius as it isn't centered
Chamber #2 on top, chamber #1 on the bottom.... You can also see where I've done blending around the valve seats 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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10-03-2019, 05:27 PM
Post: #6
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OST-058: "Q"
working the bowls to correct the core shift, and to create "gentle" short radii.....
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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10-04-2019, 01:12 AM
Post: #7
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OST-058: "Q"
2 down... 2 to go....
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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10-14-2019, 06:21 PM
Post: #8
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OST-058: "Q"
with the port work finished, its off to the machine shop to get its valve job, and re-surfacing
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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10-22-2019, 06:47 PM
Post: #9
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OST-058: "Q"
back from its valve job(ain't those back cuts purdy..... ), and re-surface... ready for re-assembly.
more to come.... PS... this head still needs a new owner....... Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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