Ae85 swap 4age.
04-06-2021, 06:27 PM
Post: #1
Ae85 swap 4age.
Hello Smile
I would like to change me 3A-U from my ae85 for a bluetop, has someone already done it? I would like some information for the wirring Smile thanks you very much
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04-07-2021, 09:52 AM
Post: #2
Ae85 swap 4age.
It has been done before and we even had a forum member who simply swapped a 4A-GE head on to a 3A-U bottom, making it a 1.5 litre 3A-GE. But that was a lot of effort for little gain.
The procedure should be mostly the same as for the SR5 to GT-S swap (4A-C to 4A-GE) as described by Assassin10000, with the difference that the AE85 has a K50 gearbox instead of a T50 gearbox. The SR5 has the T50, but is clutch operated instead of hydraulic, hence you need the 4A-GE bellhousing.
Your rear axle is also a different axle (S302/S312/S314) than the AE86 (most of them are T283). You can keep the S axle, but it's harder to find a LSD for it. If you can live with an open diff it shouldn't be an issue. 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

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04-07-2021, 10:25 AM
Post: #3
Ae85 swap 4age.
Hello, thank you for the response ! I will study the subject of "assassin". I forgot to specify that I have an automatic gearbox on my ae85
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04-07-2021, 01:14 PM
Post: #4
Ae85 swap 4age.
Do you wish to retain the automatic gearbox? If not you also need to swap the radiator as this is commonly used for cooling both the engine and gearbox.

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 - Ae85 swap 4age.]
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04-07-2021, 01:18 PM
Post: #5
Ae85 swap 4age.
I'm going to switch to a manual gearbox. changing the hoses does not keep the radiator?
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04-07-2021, 01:36 PM
Post: #6
Ae85 swap 4age.
I have the A40 automatic transmission on my Carina and the A42DL that's in the AE85/AE86 is a similar gearbox. The Carina has a separate oil cooling for the gearbox at the underside of the radiator. But I couldn't find this for the AE85 in the diagrams. so it could be that it is cooled differently...
Anyway, if it's the same as with the Carina the radiator has less capacity due to the oil cooling part. You can do without but your water temperature may get into the red zone quicker.

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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04-07-2021, 03:27 PM
Post: #7
Ae85 swap 4age.
ok, i'm thinking of adding an electric fan Wink
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04-07-2021, 10:10 PM
Post: #8
Ae85 swap 4age.
Hey, i'm from belgium aswell.
If there is anything you need parts wise you can always send me a msg.
Might be able to help you out.

Grtz
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04-07-2021, 10:16 PM
Post: #9
Ae85 swap 4age.
Hello , private message send !
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