MarkPerez

Well,, my oil leak is back, and bigger then ever. My question is :: To repair the o-rings in the housings is it a full blown tear down of the engine ?? meaning while i'm at it may as well rebuild the entire engine ? I've got that puddle of oil right above where it says ' mazda 12a'
again. It's wierd because, the leak went away for awhile
but now it's back. thanks.

MIKE-P-28

iTrader: (1)

You probally have a small crack in the O ring.. If you tear the motor down to fix it , you might as well do some nice things in there...

BTW: I have a lot of the viton o rings for this purpose

nopistonsforjoe

you have the same oil leak that i did and im almost done rebuilding mine...blah. anyways a full rebuild is what you have to do.

abeomid

Yeah it's where the o-ring for the dowwle pin is. You might as well get a nice port while you are in there and do a full rebuild, so you don't have to take it apart again.

nopistonsforjoe

we're in CA though so porting is pretty much out of the question unless you have the smog hookup....if you do let me know hehe.

82transam

iTrader: (18)

Just drive around with no inspection sticker. My dad did for 5 months before he got pulled over for it.

Wankelguy

You sure it isn't just a leaky oil filter stalk connection?
I've been trying to figure out how a bad rotor oil seal shows up outside the water seal, maybe I'm missing something here, I don't know. -WG

abeomid

But this is not the rotor oil seal. There is a passage for oil right on top driver side of the engine and there are some oil rings there.

MarkPerez

Yeah,, I've though about doing some porting, depending on the condition of the houseings. I've got
all the ca. smog crap too.. I know it's restrictive, but
if i could get-a-way with using the stock exhuast manifold, and do, or get it ported a bit. nothing crazy,
or ' mad quick'.. maybe a 'baby' street port, and lighter
flywheel, (steel).. I know,,,it sucks ,in california,my car
goes pretty good,,still, i'd like to take a ride in a ca. rx7
12a, without any smog, to see the difference's just how much the smog crap chokes the 12a.. ok,, so let you know,,let you know what ??

MarkPerez

Another pic

inittab

I'm with Wankelguy on this one. Have you replaced the 4 oil rings that make up the oil filler / oil cooler tower?

Oops, never mind, you've got an 82......

Wankelguy

Aaaaahh, I'm with you now.
The dowel pin o-rings. Guess I wasn't reading very closely, sorry.
It would have been nice if it was only a leaky oil filter stalk though, wouldn't it? -WG

MarkPerez

Yeah, i've got an air to oil cooler, ' could' a leak from there get way over to where the 12a casting is ??
from the filter pedestal,,that is . I don't think so.

MIKE-P-28

iTrader: (1)

Nah not easily from the rear housing to the front, i think you got the dreaded O ring failure

nopistonsforjoe

i was saying if you know a smog guy who you can bribe then share the wealth.

MarkPerez

No i sure don't,, that would be cool though. But you never know, go down close to the border, mexicans can always be bought .. Lol

RacerX7fb

Mark
Looks like got yourself the Mazda 12A oil leak..many of them develop that right around that same spot. A friend of mine JB Welded a tube along the housing so that the oil would drip down it into a catch can..heheh that was his fix. I told him to drill and tap the oil pan to recycle it! Well he kept the engine happy by adding fresh oil every other day
O yeah, you dont have to go to the border.. just step outside
The emissions stuff isnt really restrictive, just weighty.
I'm pretty happy with just running a headered system on my SE..the speed bug hasnt really bit hard in awhile

FD Racer

You can pass a CA smog test WITH a streetport as long as you put on all the smog crap for the inspection. for example... Stock exhaust manifold, cats, airpump, stock carb, ACV, rats nest, etc.

MarkPerez

Yeah, thats what i was thinking. I've got every piece of smog crap, EVERY PIECE !! and a bonez hi-flow cat.
stock exhuast to the cat, and after, stock nikki, untouched.


Here's another question :: what is all envolved to replace the o-rings,,meaning,, i need to buy a complete gasket/o-ring set,what about apex seals ?? bearings ??
see,,i don't know what bearings,gears,would, or does need to be replaced, or just cleaned up if there is not to much wear . the E-shaft need to be turned,or does turning apply to the rotory engine ?? Right now i can't swing to buy a rebuild, or have it rebuilt by someone.
I've got a couple of books on the rotory, and i can rebuild an american V8 in my sleep. i've also got ALL the tools, cherry picker,air tools,a garage,I've also ported
ford,chevy,VW, porsche,and a couple of motorcycle engines. So i understand that aspect.Depending on the condition(s) of the housings if they are reusable or if they are 86ed, I won't know untill it's torn down, the car doesn't smoke now, and runs like a demon, so i guess thats a good sign, Since i've bought the car i allways warm it up first. all the best fluids, .. I wind it up, but nothing past 6000 rpm's. It will spin past 6000, but i'm cool with it,since it has over 150,000 miles. and it's the OEM. Never been rebuilt. So !!,, to start,,I guess some good advice would be the first step, from those who know,,,you know ?? Lol... what'd do you think ??

nopistonsforjoe

hey mark if you need help let me know i just finished rebuilding mine and i have the flywheel wrench and pullers you need to do the job. buy a gasket set from victoria british its only 120 bucks for everything you need. if i can pass smog with a streetport then maybe we can help each other out. email me @ buschj01@student.ucr.edu

MarkPerez

Hey, thats cool of you to offer. I just may take you up on that, man . Did you rebuild, or re-gasket/ o-ring your engine?? that e-mail didn't work for me. I don't know,
maybe i'm just stupid and did it wrong ?????

What do you mean ' IF ' you can pass smog with a streetport..i don't get it.. why couldn't you pass.

nopistonsforjoe

oh i just hadnt gotten a definate answer on whether or not a streetport could pass smog but now that i know it can i'm definately gonna go for it. as to what i did to my engine i just regasket-ed it but the only difference between that and a rebuild is a rebuild puts in some new parts, but mine were in good condition so i didnt need to replace anything.....but i would definately be willing to help with the rebuild if you could help me with the streetport, hell i'd help anyways experience is experience. that email should work if it doesnt you can just PM me. ttyl

RacerX7fb

A street-port pass smog !? whoa...I'd like to see that for sure. I know that having every single factory piece on there will certainly pass the visual..but the sniffer may go nuts.
Bigger the port equals more fuel, more fuel means more exhaust emissions.
SoCal RX-7 Club will be rescheduling the engine rebuild BBQ day soon. It will be fun and informative.
Mark you're not far from me..lemme know when that smog day is.
Mel
84 SE

nopistonsforjoe

where in SD are you racer? and what day is the bbq? if its on a weekend ill definately try and make it. so we are still not sure whether a streetport will pass emissions? haha we need a final answer on this

RacerX7fb

Im in Paradise Hills close to Mark
Gotta say no on passing..but hey if it does , it does... check www.socal7s.org for events
On the West forum..theres gunna be a meet up wednesday the 23rd 6pm @ Giovanni's pizza..Clairemont Mesa Blvd/ Ruffin Road of I-15