OST-071: For an AE71 - Largeport for a liftback
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01-25-2021, 12:49 AM
Post: #1
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OST-071: For an AE71 - Largeport for a liftback
I was contacted during mid summer by this client. I had just begun OST-070, and he wanted OST-071 for his AE71.
![]() As you can see, it currently has a clean 4AC engine in it...... ![]() But he wants a bit more......... ![]() More to come...... ![]() Dan - You can | ![]() OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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01-25-2021, 10:18 PM
Post: #2
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OST-071: For an AE71 - Largeport for a liftback
The owner of the AE71 has a set of Hoshino Impul rims, a set of SSR Mk I rims, a set of CibiƩ fog lights and now OST-071! So he definitely has good taste!
![]() 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: ![]() |
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01-26-2021, 08:53 PM
Post: #3
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OST-071: For an AE71 - Largeport for a liftback
(01-25-2021 10:18 PM)banpei Wrote: The owner of the AE71 has a set of Hoshino Impul rims, a set of SSR Mk I rims, a set of CibiƩ fog lights and now OST-071! So he definitely has good taste! ![]() So... the first order of business is to acquire a 4AGE - not so easy anymore, this one took about 2 months for my client to find. ![]() It is an early 1989 (10/1988 built) 4AGE (vin number tag on engine traced using toyodiy) that was originally delivered to Canada. I got the engine on a stand..... ![]() ![]() ![]() and began dismantling the engine..... As more of my clients are wanting complete engines, this tool is quite handy, jaws are a good fit ![]() Head gets pulled..... damn.... not good news EVERY ONE of the cams journals is seriously damaged...... ![]() ![]() ![]() How bad...???? ![]() While this can be repaired - the time and effort is more then finding, and paying for another head. Another head is found, and it is in very nice condition. ![]() and un-machined....... ![]() more to come...... ![]() Dan - You can | ![]() OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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01-27-2021, 07:20 PM
Post: #4
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OST-071: For an AE71 - Largeport for a liftback
from another forum Wrote:clean car from another forum Wrote:Flywheel is from a FWD or MR2. Will need a new one for a RWD, the water plumping will also have to be changed or modified. Same here on the distributor cap, I've never seen one like that? ![]() Dist cap is fwd for use in the AE92. Flywheel is from a Blacktop, and it does work in rwd, I have the same flywheel in Surreptitious - it is around 13#s, so 2-3#s lighter then any other stock flywheel. I think its a score.... I'm hoping ( ![]() So first things first.... get it all cleaned. The head....... ![]() and the block.... note already bored, and honed.... ![]() ![]() getting the block taped up... ![]() as with a number of builds.... this one also gets the metal blackening epoxy coating ![]() By the way..... did you see the repair? more to come....... ![]() Dan - You can | ![]() OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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02-03-2021, 08:04 PM
Post: #5
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OST-071: For an AE71 - Largeport for a liftback
(01-27-2021 07:20 PM)oldeskewltoy Wrote: By the way..... did you see the repair? upper water pump mounting point - you can see the heat applied, and the repair inside. ![]() So while the block cures... Head work commences... beginning with a deburr ![]() And a bit closer..... ![]() this piece broke off with very little pressure, it could have ended up swallowed....... ![]() more to come..... ![]() Dan - You can | ![]() OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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02-10-2021, 07:18 PM
Post: #6
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OST-071: For an AE71 - Largeport for a liftback
Port work begins....
![]() One down.... ![]() further progress.... 3 down ![]() and 3 down on the intake side.... ![]() Makin' chunks....... a bit closer view of working an exhaust bowl.... ![]() more to come....... ![]() Dan - You can | ![]() OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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02-19-2021, 11:12 PM
(This post was last modified: 02-19-2021 11:17 PM by oldeskewltoy.)
Post: #7
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OST-071: For an AE71 - Largeport for a liftback
After finishing the porting, the head goes back to the shop for a fresh 3 angle, and of course back cut on the intake valves.
![]() A unique opportunity... 2 heads, side by side, OST-073 on top before work begins, and OST-071 on the bottom showing all the port work and its fresh 3 angle ![]() With the valve job complete, it is time to measure chamber volumes. Head is propped up allowing me to get an accurate measure ![]() and the results......... ![]() more to come....... ![]() Dan - You can | ![]() OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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03-16-2021, 01:08 AM
(This post was last modified: 03-16-2021 01:12 AM by oldeskewltoy.)
Post: #8
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OST-071: For an AE71 - Largeport for a liftback
Both the head, and the block are back in my hands.
The head has been machined .009" to get chamber volumes back to 36cc, and now it is ready for re-assembly. ![]() Cam clearance were checked and all now set to .008" ![]() I also got the short block back...... ![]() ....and buttoned up the bottom end. (Nice cross-hatch in that hone job!) ![]() If I hadn't mentioned, I am again using the Flos.ie 4AGE engine bolt kit.... ![]() you can easily tell by all the shiny bolts. Note the empty bins on the bottom right: sump, rear seal, and oil pump ![]() Now we wait another month for the correct Cometic gasket to arrive. more to come.... ![]() Dan - You can | ![]() OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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03-16-2021, 09:42 AM
Post: #9
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OST-071: For an AE71 - Largeport for a liftback
Really clean work, as always.
FABRICA MI DIEM, PVNC! |
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