okay guys i know i been posting up threads pretty often..

ima total noob about cars and my rx7 is the first car I have.

i have been around cars most of my early teen life and always wanted to learn how to rebuild motors and make em go fast and all

i have some knowledge about cars
i just dont have any personal experience rebuidling a rotary engine
nor heard anyone rebuidling it, from heard from my friends
and there all toyota or nissan fans..

i have red the FAQ but i cant really base my judgement on it.

so heres my question:
how hard is it to rebuild a 13b Motor and to change the transmission to standard

i can get the parts.. i just need to know how long would it take

 

A long F'in time if you have never wrenched on a car before!

To give you a better answer, probably about 40 hours of labor if you know what you are doing.

It won't get finished if you don't know exactly what you are doing.

 

well i wrenched on a couple of celicas and 240's but thats about it..
but im totally new to the rotary business

 

The trans swap can be a pain in the *** if you don't have access to a welder, the transmission cross member needs to be re-engineered to swap from an auto to a manual trans in most cases. There is a ton of info on auto to manual swaps on here to help you, you could do it with a friend who is is knowledgeable but it will still be a sizable project to start with.

The engine rebuild is best left to a professional unless you don't mind having to do it over and over again.

Good luck and make sure you read as much as you can prior to doing major work on the car.

 

there no professional shops for rx7's here on guam
well certified rx7 mechanics..mostly everyone here on guam usually does backyard work

i have access to tools and all..

i just need to know what im getting myself into
i just dont want to take my car apart and then let it sit forever and wonder how come i never finished it

i read up on a couple things about engine rebuilding and it seems way simpler
than dealing with a piston motor
with less moving parts and all
is there timing included when putting back the rotors?

 

Rebuilding a rotary is relatively easy, but it is still time consuming and the parts are expensive. There is no timing belt, valves or cams or any such things. Valve timing is completely a non-issue; there are no valves. If I remember right, most of it involves properly inserting the seals into the relevant parts. You may have to line up some parts on the eccentric shaft (similar to a crankshaft) properly, I forget.

I'm sure you can find guides online. Start at www.racingbeat.com or www.mazdatrix.com. Even the Haynes manual has a guide. It is still quite involved, though probably not as involved as rebuilding a piston engine. So make sure you check out what's involved before you start. Besides tools, etc., you will need a clean dedicated work space. I'd get all OEM seals to be safe. If you don't have time to work on it, it might sit in your garage forever. If you do have plenty of time, I doubt you'll get stuck. And if you do get stuck you can ask for help in these forums.

If you want to get some power out of the motor while rebuilding it, search these forums for information on porting. Most people get a street port. That is simply enlarging the factory ports using a template (bought from one of the websites above) and a grinding tool. There are other ports that give more power, but might greatly hurt gas mileage, noise, pollution, reliability, low rpm power, cost more, take more work, etc.

For other power tips, just search these forums.

 

Rebuilding/Project now, easy so far.. but haven't put anything back together yet !

 

I did it in my garage, and its a lot of work to get right. I actually screwed it up the first time around and had to re-rebuild it. Get the bruce turrentine rebuild video at www.rotaryaviation.com (something like "rebuilding a 13b") Its well worth the money, and will give you a good idea of what you are getting into.

Also, budget for double what you think it will cost to rebuild it. You will need to replace hoses and other parts that are worn out, plus stuff that breaks. Its sounds unrealistic, but stuff adds up fast.

As for swapping to a manual tranny, there is a very good writeup at www.rotaryresurrection.com in the 2nd gen tech section.

 

Atkins Rotary also has a rebuild video, haven't checked it out though yet

 

was it your choice to have an rx7 as a first car? if i didn't have too much experience with cars i wouldn't f*** with a rotary as a first car unless you're prepared to do a lottttt of reading and to get flamed on these forums. but you never know though, my good friend is on these forums and his 1st car is an fc and he just did some turbo swap and all that crap and he's turned out fine and has learned an assload of information. just don't get too cocky if you start getting the hang of the whole rotary deal