(Catching up...) OST-083: Salvage operation
07-07-2022, 01:27 AM
Post: #1
(Catching up...) OST-083: Salvage operation
[Image: AEU86 AE86 - (Catching up...)  OST-083: ... operation]

While I was able to do a great deal in salvaging this head - this was truly borderline where it should have been welded up and rebuilt. The fact that this was going on a mostly stock engine (California so stock cams), and the client not wanting to spend that kind of money helped me decide*.

[Image: AEU86 AE86 - (Catching up...)  OST-083: ... operation]



cleaned and pressure tested... Huh and tumbled. It is obvious that the challenge here will be cylinder 3

[Image: AEU86 AE86 - (Catching up...)  OST-083: ... operation]


* - What also helped me decide was the fact that the decay was all inside the fire ring of the head gasket. The old head gasket - stuck to the head helped protect the head.

[Image: AEU86 AE86 - (Catching up...)  OST-083: ... operation]


Porting proceeds.... Typical crappy short radius from a smallport head...

[Image: AEU86 AE86 - (Catching up...)  OST-083: ... operation]


and exhaust work....

[Image: AEU86 AE86 - (Catching up...)  OST-083: ... operation]



and a 4 panel showing just how much that chamber improved......

[Image: AEU86 AE86 - (Catching up...)  OST-083: ... operation]



ready for re-assembly

[Image: AEU86 AE86 - (Catching up...)  OST-083: ... operation]

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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07-11-2022, 07:11 PM
Post: #2
(Catching up...) OST-083: Salvage operation
Impressive how well that cleaned up!
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07-11-2022, 08:32 PM
Post: #3
(Catching up...) OST-083: Salvage operation
That before pic looked so gruesome I was expecting a twist to happen somewhere in the middle. But it didn't and great job on reviving this head! Thumbs up!

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