Sniper_X

After FILLING the engine with ATF for a week , the 6port shafts were still frozen. However, I did free up ALOT of crud.

What was left was amazing!!!!

(Now I have it clean... so i dont need help there...)
Also see this post for whats happened until now...
A radical twist on the ATF trick! MORE=BETTER (if done right)
Now look at the pictures...

Port Sleeves coated in 1/8th inch thick CRUST of carbon (came off in chunks!)

wide view of intake manifold (at block)

look at the openings, especially the port shafts!!!

Also....
DAMN i broke the oild lines... I KNEW that would happen...
(sigh... its only money....)

Piles of sludge (crud after the ATF got to it), literally DRIPPING from the openings

And what is that square hole in the bottom of the middle intake holes (see above picture)?!

Ahhh clean port sleeves!!!

Look at the ROCKS i removed from the engine lying on the heat shield! (these were the small ones)


I am having the port actuator shafts rebuilt, and have ordered new oil injector lines!

Ill beat this B*TCH yet!!!!

So, please tell me HOW, WHY did this happen?!
What are the square holes under the intake ports?!

Where can i get my hands on the previous owner?!

Always tinkering.....
Sniper_X

PraxRX7

Fill it with more ATF!!! lol

PraxRX7

fill a vat or big tub with ATF and submerse the whole damn engine!!

Sniper_X

Well i have it clean now, so thats no problem..

What about the questions at the bottom of my post?

Any ideas there?!

PraxRX7

Your oil lines...when did they break? While driving or while cleaning?

I dunno what the square hole is all about...

if you get that bad boy running again lemme know...I wanna see smokey pics and gunky spark plugs!

Sniper_X

I broke 'em removing the oil injectors...

They always break.

And whaddya mean IF i get it running again?

humph!

spooledUP7

I went to mazdatrix's sight to see what the gasket looked like, and it has the square hole. Not sure what is for though.

hanman

It's the exhaust for the Air Control Valve, no big deal.

Sniper_X

Okay, well where does this hole go?

What about cleaner getting down in there?
Its NASTY in there should it be cleaned?

Does this hole drop into the oil pan? Where does it go when it exhausts?

HAILERS

Like hanman said its air from the aircontrol valve. As in port air. Mixes fresh air in the exaust ports for cleaner combustion during certain conditions. They do say if you do not have anything nice to say, be quiet, but I think you should have overhauled this engine. It'd be a lot more fun and take about the same amount of time. Just a personal opinion, and yes I know what I can do with my personal opinion. Have fun. Great pictures and a very interesting project.

Sniper_X

Well, opinions wa swhat I wanted, however, this engine WAS rebuilt shortly before i got it.

However, ALL the work was done by idiots!!!

Heres why...

• Only the rotors and seals were rebuilt, all the other dirty nasty parts were bolted BACK ON the car as is!
• the entire exhaust was replaced by someone the never tightended the bolts anywhere, so i thought ithas a hole in the cat, but it was just blowing out the flanges!
• whenever an engie part was removed, it was put back on, dirty, and with some grey silicone selant that killed the O2 sensor and was stuck on everything! (Oil pan intake bolt holes, everything)
• the car was wrecked in the front right corner and half the weds and parts used were never done right, and it was rusting terribly

I could go on and on and on...

However, I KNOW how to clean and fix everything except whats in the bock, and also I dont have a hoist or engine stand.
Its a MUCH bigger job to rebuilt it completely..


I guess my real question is, should I clean out this area completely too?

Or is there no danger of this crud getting n to my intake?
I have sprayed ALOT of cleaner down there and its all soft and ready to come out, this isnt going into the oil is it?

Does this crud in this hole blow into the intake or am i correct in understanding you to say that this is a hole that RECEIVES air from the intake and not the other way around?

HAILERS

Air goes from the airpump to the air control valve. Under certain conditions air is released from the air control valve into that square port and from there to the exaust port. There is a check valve about the size of a silver dollar in the air control valve that keeps the exaust gas from feeding from the exaust into the air control valve. Due to the check valve it should never enter the intake. If I were you I'd take the air control valve off and see if the check valve is there. Hate it when people use sealant when they have a perfectly good gasket and clean mating surface. If the thing has to be taken off some time later all you have is a mess.

Sniper_X

You would think that im an idiot at heart by looking at my spellings sometimes.

I actually spell well, but if i don't re-read what I type, then its certaily going to be laced with "near spellings" or outright NONSENSE words.

Anyway, i tried to edit the message but my cable provider took that time to take my cable signal and route it to a underprivledged family in Taipei so that they could watch Pokemon.

My time edit window (60 minutes) ran out and voila, instant idiot.

ANYWAY!!!!

Yes there was a check valve.

Why is that hole (and the other two square holes under the other 6ports) also full of crud?!

The same crud that was in my intake.

I am ultimately wondering if I should remove the oil pan and drain the oil from the engine and reseal and refill it.

I dont see how those holes can go to the exhaust when the crud is in that hole and not in the exhaust manifold.

I have a limited understanding of the inside of the engine beyond the level I have torn it down.

HAILERS

Trust me, they go to the rear port on the exaust. If you'll look at this http://www.mazdatrix.com/e6.htm you'll see your exaust gasket which is I believe *E*. See the rear exaust hole and just under it there is a finger size hole next to the smaller hole for the attach stud. That is where the *port air* from the air control valve exits and enters the exaust so you can pass emmissions next time. I'd expect to see some carbon build up there. I think yours is magnified by the addition of the atf, perhaps. Oh yes. I know you'll drain the oil, but if you pull the pan, be sure to bring your lunch with you. You'll be there some length of time getting at the front bolts, and also take consideration that the right motor mount is attached to the bottom of the pan so you'll need a method of keeping the engine off the ground while the pan is off.

jaysT2

cause it damn hot in there the crusty **** just gets burnt off... the crust in the intake doesn't get hot enough to burn but when the air goes through air control valve it enters the hot manifold and the oil and whatever is in the crust gets instantly burnt do to the extreme exhaust temps rotory's have.

i wish i had the time to clean up my T2...but i don't...so i'll keep my crust for now.

ZoomZoomZoom

Hey, Sniper-X...I don't have that hole on my intake. What year and model are you running? I am running a 87 NA and there is no lower square hole like yours.
Joe

Sniper_X

1991 non-turbo.

Mykl

Very impressive. I've been thinking about tearing my intake down to the block to clean it up, but there's no way in Hell I'm going to fill it up with ATF like that.

Keep us updated.

Sniper_X

HEH!

Theres no danger in doing this.

Just remove the downpipe and cat...
Rotate the engine by hand and pump it into a bucket after about 4 days.

Spread kitty litter down and put a bucket on the plug side too.

I caught all the carbon and fluid this way.

This is what I did and my rotors are shiney now!

MOOOOHHAHHAHAHhhahahahaaaaaaaaaaaaaaaaaa.........