ok so i have a 1984 project rx7 and i could either pay about 400 to get the apex seals and seal springs, and a few other seals, or i could pay 135 to a guy i know for a complete engine and trany from a 13b fc rx7 (2nd gen) im fairly new to this so i dont know if i would be able to bolt it up. would it fit in? and also would i need to replace the drive shaft or the rear axle...

this is actually the car ive wanted since i was like 2, so any help getting it going would be really apreciated. tnx

 

Yes.

Read FAQ many threads on this

 

They made one version of the SA22C with the 13B engine already in it.
So I'm gonna have to look into the crystal ball and say, yes, alot of people do
it. Use Search

 

Yes, I helped a guy do it once, we swapped out the entire driveline, but the original driveshaft was missing so I do not know if your's will fit. However, we did run into one problem with the turbo, as the first generation (SA/FB) RX-7 was not available with the turbo II engine. If you have the non-turboed engine, then it should drop right in, but the turbo II will require you to move a couple things like the radiator reservoir to give room for the turbocharger. I shall assume you have the engine computer, wiring harnesses, fuel pump, and other stuff to change the fuel system over to EFI? Or are you plugging the fuel injection system and running a performance carb? Will it be a street vehicle, or do you have racing plans?

 

ok i just found out that the the trans for the 13b fc i got is brnd new but the guy i am buying it from said after the tranny was replaced it wouldnt start, what are the odds that it wont be worth buying it anymore cuz it will be expensive to fix.

 

yes my brother you can swap a 13b engine on yor rx7 and also swap 13b turboII on your rx7 AMEN!!

 

if you have any questions call my home phone # i have all your questions 9786875375 rx7 only!!! ask for hector or israel

 

 

the 13b will really wake up the FB. I've been looking for a gsl-se because it already has one it (albeit with different ports, carb, etc.). I hope it works out for you, are the rotors frozen or does it turn over and not start?

 

idk ill ask him, thanks for the idea. if the rotors are froze, what does that mean, will i need to replace the seals or just get them lubed and moving?

 

If the rotors are frozen, that means you probably have what's called "carbon lock". Of course I don't think it needs mentioning that there may have been starter problems during the tranny swap, so pull the plugs and try to turn the main pulley by hand with the tranny out of gear. If it turns, then I would check the starter and wiring before I do anything else. I have never personally dealt with a locked engine before, but I know that it can be as easy as spending a day pulling the spark plugs and squirting some good lube into the chambers and turning the engine by hand, or could mean a rebuild if its a high-mileage engine thats been sitting for a while. But as far as I know a transmission change should have no effect on whether or not an engine starts unless you have an automatic and the wiring harness wasnt hooked up right. I have never owned or worked on an rx7 with an automatic tranny though so...

 

We used to unfreeze`em at about 55mph behind my pickup and pop the clutch. Pull until it starts (make sure the key is on!) maybe a little smoke and if it isn`t firing rite it will need a rebuild. They were usually in 2nd gear....

 

Please, please dont force a frozen engine. Dont do it by pulling it off, or even with the starter. I cannot tell you how many times I have seen/heard of this destroying the apex seals, when a few hours and some due patience can generally fix it without any big wrenching job. Read this post on how to de-carbonize a rotary. Again, Please, Please do not try to force a frozen engine. Check out that starter, too. Post back and let us know what you find out.

 

+1 on putting some kind of fluid (can't remember type) through the spark plug ports. If it does turn and not start check the basics (fire, fuel, etc.). I just got my cousin's fc started after sitting for a year (so called broken engine). Coolant fine and oil okay, found a couple of lines that had cracks, "racer taped" them and after a couple of engine floodings got it to go. Good luck to yours and let us know the findings.

 

well folks, by the time i got the spark pluggs out my fingers were swelling from frost bite so this weekend im pulling it into a freinds shop to try it, lolsorry folks, it has been -10 degrees and windy for almost a week now.

 

Oh and BTW, I was wrong, we left the radiator resivoir alone, but moved the cruise control motor, washer fluid res, and sub-zero fluid res. The part mumber for the oil pan we used from the racingbeat.com site was 11831. We had to use that to solve clearance issues with the subframe.

 

That sounds like a cool project. I'm going to do the same thing to my first gen...I just can't decide which version of the 13b to get.

To JB...I heard of doing that also, but was told to pour in ATF prior to doing so and rotate the rotars for a couple days. I've read many different and "proper" ways to get the engine to fire....towing it behind a truck does sound like the most fun hehe.

 

Yes, it's definitely the most fun alright! That is, if you call a total engine rebuild "fun". A hint with rotaries, or any car for that matter, is that if it sounds easy, it's probably not a good idea to try.

 

amongst other small accesories, you need a front cover from a 1st gen to mount the engine in the car, and like said already, u need a first gen 13b oil pan. If you are going to try and run the whole fuel injection system from the 2nd gen to your car its a bit of work, especially if you are new to the cars. It may be more economical when you factor in time and headaches to just rebuild your 12a.

 

ya i might just rebuild the 12a, as it is my 2.0l dohc16v fpi mazda 626 gets me enough tickets, i dont need a 160-180 horse 13b, lmfao. i got a 655$ speeding ticket with my 626

 

ok guys, i found a 13b out of a gsl-se, if i have the computer will i b able to drop it in in place of my 12a without any major mods?

 

Yes it can be done, fairly easy too. There is a thread on here for exactly what you need to do it pain (welding, cutting, hours of wireing mod) free.

 

weres the thread, i cant find any... i must have the wrong key words