busted_up_rx7

i own a 85 rx7 gsl w/a 12a and i was driving it a while back and the gas pedal stuck and reved to like 12k at least and it didn't mess up at the time but now i blew the apex seal i guess and i was wondering how much these are and how hard it will be to fix it myself givin i have no clue cept a chiltons book so any help would be appreciated my email is phatrs@adelphia.net if u can help me out

mwpayne

Do a search using the words REBUILDING or ENGINES or 12a, there's tons of info and prices on this forum.

Good Luck

specRX7_22

i would strongly recommend NOT attempting that yourself if you dont know what your doing. ive personally never ripped apart one of these either, but ive heard theres little springs and **** that pop out all over the place. and theres other tricks according to bret of rotary performance.

hanman

Rebuilding a rotary is not for the faint of heart. Just go buy a used engine from a junkyard, or buy a rebuilt.
And by the way, throw the Chilton's away and find a Haynes manual.
dave

inittab

Rebuilding a rotary is NOT that hard to do. Many moons ago I rebuilt several RX-2 12a's and RX-4/Cosmo 13b's and I did it all with just a Haynes manual and a few tools. And, yes, they all performed very well. With the amount of info at your finger-tips nowadays, Haynes manual, rebuild videos, plus this and other forums it should be extremely easy to do. Just do your homework.

thorin

thank you for saying that. id been getting contradicting stories about this.. this makes me feel a lot better. but doesnt putting the engine "slabs" together require some special tool/machine?

85TIIDEVIL

iTrader: (2)

Yea... patience, a clean working area, and a understanding of the English language. Put it this way... if you don't do it, you'll NEVER have a clue. The Haynes tells you EXACTLY what to do. Cleaning is the hardest part, and making sure the parts you're using are in fact good/acceptable for a rebuild is the most important.

thorin

hey, if no special(read-- extremely expensive or very large) tools are required, I can do it.

I have +30 dexterity points, yo.

RotorMotorDriver

iTrader: (1)

I tore down an engine I had with a socket set, a couple screw drivers, and an impact gun. The impact gun wasnt even necessary other than the flywheel nut, it just moved the process along faster . Im sure I could put on back together with the same basic tools, along with a good torque wrench.

~T.J.

EDIT: And a few box end wrenches here and there .

Mireck 12A

Hmm I don't think tearing down an engine is the hardest part..
rebuilding it; You'll need 35 fingers at the same time to keep all the springs and seal in their place when reassembling the engine

But go ahead... I'm also trying anyway
A busted engine can not get worse

Greetz,

Mireck

RotorMotorDriver

iTrader: (1)

I dont know where, but I read somewhere that SMALL drops of superglue can help hold seals in place. I dont know if I would personally do it, but when I heard about it, the person said it wouldnt cause any damage, and the glue would basically disintegrate once the engine was ran anyway. I dont know though, sounds kinda risky to purposely put hard chunks of material in the engine Im rebuilding...

~T.J.

MosesX605

One of my manuals (can't remember which one) suggests tying the seals to the rotor with string during installation. Once you've got the rotor halfway secured and the seals are in no more danger of flying all over the place, cut the string and pull it out. I've never tried it, but it should work.