OST-064: Breathing on a 3 rib
02-01-2020, 02:02 AM
Post: #1
OST-064: Breathing on a 3 rib
[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]



more to come..... Big Grin

Dan -

You can |Sad .... OR you can ask for help!!!

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02-03-2020, 06:45 PM
Post: #2
OST-064: Breathing on a 3 rib
OST-064 "Cleaned"....

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]



After getting it cleaned, I deburred the casting

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


And then before porting, I had it "tumbled" so the head now looks new, no discoloration do to oils, carbon, or coolants.

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


more to come...... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
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02-04-2020, 09:30 PM
Post: #3
OST-064: Breathing on a 3 rib
Indeed it looks very clean! How many Ks did it run? Dumb question

1982 - TA60 Carina 4dr sedan - fun cruiser
1983 - AE86 Sprinter Trueno - import project
2013 - Honda Civic sport - daily driver
2004 - AEU86 dot ORG - daily domain

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[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]
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02-06-2020, 10:57 PM
Post: #4
OST-064: Breathing on a 3 rib
(02-04-2020 09:30 PM)banpei Wrote:  Indeed it looks very clean! How many Ks did it run? Dumb question


Ks??? Kilometers? no idea, although I do know this head has been in storage for at least 10 years before got it......


Work begins.... One done...


[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]



and a bit closer...

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]



more to come.... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
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02-06-2020, 11:26 PM
Post: #5
OST-064: Breathing on a 3 rib
Indeed Ks in kilometers. I know: I should have said Ms... Wink

1982 - TA60 Carina 4dr sedan - fun cruiser
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:
[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]
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02-11-2020, 05:37 PM (This post was last modified: 02-11-2020 05:40 PM by oldeskewltoy.)
Post: #6
OST-064: Breathing on a 3 rib
oldeskewltoy Wrote:[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]



more to come.... Big Grin


[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]



[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


2 down....

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


more to come......... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
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02-12-2020, 05:53 PM (This post was last modified: 02-12-2020 05:53 PM by oldeskewltoy.)
Post: #7
OST-064: Breathing on a 3 rib
from another forum Wrote:what does "tumbling" the head consist of? Is it similar to tumbling bullet casings?

Not sure (tumbling bullet casings...???) What "tumbling" means in this case is they have a large tool - it consists of a large cabinet, with a rotisserie that you strap the head too. The cabinet is closet, and it tumbles inside the cabinet. The media used is cast zinc shot.


a bit further yesterday..... 3 down....

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]



and an up close view inside on the exhaust side....

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


more to come..... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
Find all posts by this user
02-15-2020, 04:42 AM
Post: #8
OST-064: Breathing on a 3 rib
oldeskewltoy Wrote:[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


4 down....

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


more to come..... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
Find all posts by this user
03-12-2020, 12:09 AM
Post: #9
OST-064: Breathing on a 3 rib
and the internals.......

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]



crank on right has wankered key groove in snout

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


more to come..... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
Find all posts by this user
03-19-2020, 02:30 AM
Post: #10
OST-064: Breathing on a 3 rib
everything is back in my hands for final assembly....

head, with fresh valve job (machined .008")...

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]


along with assembled short block - those are Molnar Tech 40/20 H- beam rods

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]

Does anyone see the remnants of a problem in the deck???

It took a great deal of decking to get the block suitable to accept a metal gasket.... so much so that our deck is now .018" (piston above the deck!)

[Image: AEU86 AE86 - OST-064: Breathing on a 3 rib]

The "fix", Cometic C4166-051, that should set the squish back to .033", or just a tick above .8mm.......


More to come..... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
Find all posts by this user


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