Anyone have a full tutorial on everything you need to do before, during, and after a full motor rebuild? Im trying to figure out if I shoudl rebuild, or buy a rebuilt, and I am going to look into both before i choose.

If I buy a rebuild, when I drop it back in, I will have to re-time everything right? and since i will be doing heavy working anyway, might as well change out the injectors too?

what else would I need to change, remove, modify, or check to make sure my car runs like a dream with a new motor in her?

 

Pick up the Turrentine video. That will give you a good primer on whether or not you are up to doing a full rebuild.

Yes, you should have you injectors sent out for a new motor. I do not understand why many don't. Carb guys usually rebuild or replace the carb, getting the injectors cleaned is cheaper and easier.

 

get the rebuild video from atkins

 

no way...like trochoid said...get the turrentine video...his is WAY more detailed and walks you through the process: before, during, and after, in a very great manner.

before you decide to rebuild your own motor, i suggest looking thru threads and evaluating your own ability in being a mechanic. also...if you are rebuilding your own motor, be sure that you know it will probably very frustrating at times...but what you really need to be sure of is that you do *NOT* under any circumstances rush any part of the building process...that is including the break in process.

there is a larger amount of self accomplishment and attachment to a car if you have done a majority of the work on it rather than just plopping in an engine that you paid to have someone build...that may go bad after say 8,000 or 17,000 miles....*cough* atkins *cough*...

 

Yeah, I'd hate to buy an engine that goes south at 20k miles. But my skills as a mechanic are pretty limited, i've never rebuilt an engine, but I have done just about everything else, besides electrical stuff.

Atkins has a 24,000 or 2 year warranty, but I really need this car to last me a long time If Im going to put money into it. I dont work a lot, and a 40 hour week is something hardly ever seen. I have 1100 in the bank and can have about 1800 in 3 or 4 weeks. But I dont know if I should even keep the car at this point.

If I rebuild the motor myself, and it ***** out on me at 2000 miles, then I dont even have a warranty to fall back on, I don't care about the attachment of doing something myself, because I think it would be easier for me to just order a new motor. If I was going to rebuild it myself, I'd have to find some people who really know what they are doing to help me with it, and around here that's not so easy.
I know a rotary engine has a lot less moving parts, and I've heard that they are 100 times easier to rebuild than a piston engine, but I still dont know if I want to try and take on that challenge by myself or with a few friends. It's a hard decision, but I may have to sell the car and get something to last me a couple of years for 3000 bucks or so, i don't want to, i want to have this car nice and restored back to good condition with some performance into it.

not sure yet though.
but thanks for the help, I will decide at some point. It's gonna have to be quick because It has been running a little weird with a rough idle and kind of cutting out when im cruising.

if anyone knows why that might be, let me know. I probably need to have my injectors sent off to be cleaned really, they have 200k on them.

but the way im looking at it, i dont have the money, nor will i ever, to have this car into the condition i want it to be in.

 

plan on at least $500 for gasket kit, apex seals, and oil control rings. use only mazda factory parts. check the specs on everything. rebuild could end up costing you $1000+ if your housings or rotors are bad so take your motor apart first and evaluate the situation. taking it apart will also give you an idea of how it goes back together. overall it is a relativly easy task if you have the tools.

 

https://www.rx7club.com/showthread.php?t=446306
there goes your warranty theory....sad as it is my man...its hard to find a shop that will hold up to its "warranty"...theres just so many factors that go into a blown engine that could be your fault...its near impossible to prove that its a defect...

i suggest pulling open a trash engine (if you have one laying around) to see how difficult you think it is gonna be...but first, you definately should buy the turrentine video...it will really give you a good place to start...

check out www.turnerdr.com if you are looking for a cheap rebuild...ive never dealt with them b4...but ive never heard anything bad about them either...im gona buy an engine from them come monday...we will see...they seem easy to deal with so far as they are willing to help me with my s4 13bt swap into my gsl-se by putting on the gsl-se oil pan and front cover and s4 n/a flywheel...

 

not to bash the 7, but if you want a car that will last a long time with out putting money into it and you dont want to work on it sell the 7 and buy a honda. you got to keep in mind these cars are over 20 years old now.

 

^agreed...but ull still look like a *** driving a honda

 

I'd never buy a honda. Unless it was an S2000, but that'd still be difficult to bring myself to do.

and yeah, thats the thing, it IS 20 years old, and I knew i was going to have to rebuild the motor and such when I bought it, but I thought I was going to be working a lot more over the summer than I did/am, I was supposed to be working a 40 hour week, every week, but it turned out to be a lot less. If I would have gotten to work 40s all summer, i'd probably have a new motor and new paint by now, but it didnt work out that way for me, kinda sucks, but i gotta deal.

but as long as mi not trying to rice it, a honda civic might be a nice option for 3k or something.

 

well your gona have to rebuild your motor than. unless you want to drive a shitty american car thats gona suck down gas and break down often.
you can get a real nice civic for $3000 that will run forever.

 

The thing about buying a rebuilt, is that the builder (company) that is doing the rebuilding has access to other used parts that you don't. For example, what happens if you decide to rebuild, you open up your engine only to find out that both rotor housings are bad? Buy new ones for $600 a piece? Try and find used ones in good condition? (check the www.mazdatrix.com site to see what they say about used rotor housings)
I have never rebuilt a rotary, I plan to some day, but it won't be because I need the engine in a daily driver. It will be for the fun of it, and I will be willing to run the (high) risk that it won't last, and I will have flushed $700 down the toilet.

The tolerances are the crucial part in rebuilding a rotary. That and identifying what parts can and cannot be reused.
just my .02

 

Who/Where Can I get this vid???

 

http://www.rotaryaviation.com/overhaul_video.htm

 

Thanks