Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
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-   -   I Blew My Engine, See What I'm Doing About It (teardown and build thread) (https://www.miataturbo.net/insert-bs-here-4/i-blew-my-engine-see-what-im-doing-about-teardown-build-thread-10592/)

supra_speed 06-16-2007 05:46 PM

how much whp do you have? at 15psi?
Nice motor!

Braineack 06-17-2007 01:19 PM


Originally Posted by supra_speed (Post 123501)
how much whp do you have? at 15psi?

somwhere between 210-250rwhp



Nice motor!
Two stockers: one with blown rings, and one with a blwn head gasket? I'd hardly call either nice. :gay:

Braineack 06-20-2007 03:46 PM

Worse than usual:
https://www.miataturbo.net/~web1_bra...inepull001.jpg

Hotside:
https://www.miataturbo.net/~web1_bra...inepull002.jpg

just before intercooler...I had to dump the oil out:
https://www.miataturbo.net/~web1_bra...inepull003.jpg

Oil saturating everything below:
https://www.miataturbo.net/~web1_bra...inepull004.jpg

even filler was leaking:
https://www.miataturbo.net/~web1_bra...inepull005.jpg


starting the teardown:
https://www.miataturbo.net/braineack...inepull007.jpg

https://www.miataturbo.net/braineack...inepull008.jpg


damn a/c line has a puncture....dunno why, i didnt hit it, i just moved the lines and it started hissing....whoops:
https://www.miataturbo.net/braineack...inepull010.jpg

Arkmage 06-20-2007 05:07 PM

Dude... that looks like the result of a pressurized crankcase. does your pcv check out ok?

neogenesis2004 06-20-2007 05:18 PM

You do realize he is putting in a new shortblock because of this right? His rings are bad, so yes, his crankcase was pressurized.

MiazdaBLUE 06-20-2007 05:37 PM


Originally Posted by Arkmage (Post 124555)
Dude... that looks like the result of a pressurized crankcase. does your pcv check out ok?


:gay: :gay: :gay: :gay: :gay: I'm almost 100% positive that he checked that a long long time ago.

Oil this bad is the result of bad rings.

KEEP THE PICTURES COMING!!!! i enjoy seeing daily updates like this.

jayc72 06-20-2007 05:39 PM


Originally Posted by Arkmage (Post 124555)
Dude... that looks like the result of a pressurized crankcase. does your pcv check out ok?

:bowdown:

That's some funny shit!

jayc72 06-20-2007 05:42 PM

Scott,

You do know that if you didn't "correctly" route the PVC system you wouldn't have had oil in your intake? ;) Well you might have had a fire instead I guess :) :) :)

Good luck!

y8s 06-20-2007 06:03 PM

I envision Scott's PCV system like this:

large tube coming from compressor outlet going directly to oil filler cap hole.

Braineack 06-20-2007 06:59 PM


Originally Posted by y8s (Post 124574)
I envision Scott's PCV system like this:

large tube coming from compressor outlet going directly to oil filler cap hole.

probably wouldn't have been a bad idea.....

yeah, arkmage, i lost compression when the rings gave out. That's the aftermath. PCV valve held 5-10-15-20-30psi without a hitch when i put it on my air compressor.

Arkmage 06-20-2007 09:30 PM


Originally Posted by Braineack (Post 124584)
probably wouldn't have been a bad idea.....

yeah, arkmage, i lost compression when the rings gave out. That's the aftermath. PCV valve held 5-10-15-20-30psi without a hitch when i put it on my air compressor.

Thanks for being the only one that didn't reply like an ass... some of use don't have boost and haven't seen that kind of oil build up from blow by + boost. I'm just ignorant and haven't had experience here yet.

neogenesis2004 06-20-2007 10:23 PM

I was just being sarcastic man.

Remember, down the highway, not across the street.
^^^SARCASM^^^

Braineack 06-20-2007 11:05 PM


Originally Posted by Arkmage (Post 124608)
Thanks for being the only one that didn't reply like an ass... some of use don't have boost and haven't seen that kind of oil build up from blow by + boost. I'm just ignorant and haven't had experience here yet.


yeah, pressurize crankcase looks like this:

https://www.miataturbo.net/braineack...yno_Day064.jpg

blown rings, at about 5k Tom's car just sprayed oil everywhere...im sure if my breather line wasn't attached into the intake mine would look the same....so instead i flooded the chamber and the car stalled.

Splitime 06-20-2007 11:18 PM

Heh, my last pressurized crankcase was just a case of frozen lines running into my catchcan... which I had run from VC and shortblock.... my turbo became the PCV... I felt like Spyhunter... it was awesome.

Braineack 06-21-2007 02:25 PM

made a bit of progress, didnt want to pull the turbo, but it was in the way to pull the P/S pump.

only a bit left and i can lift it.

oh and major discovery, my stupid intercooler pipe off the turbo was horrible...see pic...i had it pushed into the 90° too far and I was adding a restriction....I wonder how much that factored into my power output, if any, I'm sure it wasn't positive.

https://www.miataturbo.net/~web1_bra...inepull012.jpg

https://www.miataturbo.net/~web1_bra...inepull013.jpg

https://www.miataturbo.net/~web1_bra...inepull011.jpg

magnamx-5 06-21-2007 06:52 PM

Is that the new motor in there?

Braineack 06-21-2007 07:05 PM

no still ripping off parts....wont pull till this weekend, then spend next week swaping parts and then reinstalled by the 30th.


fixed the pipe and cleaned it up, looks new again:

https://www.miataturbo.net/~web1_bra...inepull014.jpg

https://www.miataturbo.net/~web1_bra...inepull015.jpg

Braineack 06-22-2007 01:09 PM

Just another before and after, just took some time to pretty things up under the bay while I can.

Everything but the starter and alt. plugs are off, looking to find a load leveler before I pull.

https://www.miataturbo.net/~web1_bra...inepull016.jpg

https://www.miataturbo.net/~web1_bra...inepull017.jpg

y8s 06-22-2007 01:42 PM


Originally Posted by Braineack (Post 124937)

cut more. :)

Philip 06-22-2007 01:46 PM

god look at how shitty that is, I bet there are zip ties visible too.


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