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-   -   engine ???? (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/engine-489761/)

Black TII Dec 10, 2005 01:22 PM

engine ????
 
i was just wondering if u can take a fd engine which is a auto and put it in a car that is a 5 speed people say i can do it but i also heard u have to do alot of mods to get it to work i'm lookin at a jdm engine but it seems like most of them r autos thanks nick

Mahjik Dec 10, 2005 01:36 PM

An auto engine can be used in a manual, but a manual engine cannot be used in an auto. The Auto Starter cannot bolt up to a manual engine.

tsmysak1 Dec 10, 2005 02:30 PM

I got a five speed rear iron I want to trade for an auto rear iron.. Mine is in good shape..

GUITARJUNKIE28 Dec 10, 2005 10:36 PM

i might have an auto rear iron laying around somewhere, but i can't remember if i used it yet. i'll hit you up if i find it.

Black TII Dec 11, 2005 04:24 AM

sorry i have a 5speed tranny in my fd my engine blow it seems like all jdm engines r auto can i take that (engine which had a auto bolted to it ) and bolt it to my 5 speed tranny sorry for the mix up thanks nick

bajaman Dec 11, 2005 06:44 AM

I *think* Mahjik already answered this.....
Yes, you can take the engine from an automatic car and bolt it up to a 5 speed car, provided you use the starter from an automatic car. Also....remember that the output shaft of the automatic car has no pilot bearing nor seal in it, so you'll have to do that also. And of course you'll have to remove the flex plate and counterweight assembly and replace it with a flywheel.

GUITARJUNKIE28 Dec 11, 2005 02:24 PM

i've used auto rear plates in 5-speed applications with the starter in the stock location before without any trouble.

Black TII Dec 11, 2005 10:49 PM

so i have to change the very back of the engine is that the backing plate

Mahjik Dec 12, 2005 06:53 AM


Originally Posted by Black TII
so i have to change the very back of the engine is that the backing plate

Yes, however, unless you are going to rebuild the engine; I wouldn't recommend changing the rear side housing as you'll increase the risk of a coolant seal leak by doing so. You'll have to pull the engine studs which will release tension on the other sections of the engine. You'll also need to replace the o-rings with the rear side housings.

You can use an Auto engine (rear plate) on a 5-speed (manual) tranny.

bajaman Dec 12, 2005 09:05 AM


Originally Posted by Black TII
so i have to change the very back of the engine is that the backing plate

Just to clarify this once and for all: NO, you do not "have" to change the rear iron of a auto engine to bolt up to a 5 speed. It WILL work, with just a couple of minor changes such as using the automatic's starter, putting in a pilot bearing/seal, etc.

What you CANNOT do is use a 5 speed engine in an automatic car.

mazpower Dec 12, 2005 12:52 PM


Originally Posted by bajaman
It WILL work, with just a couple of minor changes such as using the automatic's starter, putting in a pilot bearing/seal, etc.

I don't think it's possible to use the automatic starter on an auto engine using a 5-speed transmission. When I did my 5-speed swap, I needed to use the 5-speed starter, as the auto starter actually bolts onto the side of the engine, with a section cut away in both the rear iron and auto tranny for it. Obviously the 5-speed does not accomodate this, as the starter is in the "traditional" location.

Black TII Dec 12, 2005 01:33 PM

thanks sorry for the mix up thanks for all the help nick


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