here is what is happening and what i have,
start the car and get lots of blow by coming out the breather or if i lift my oil stick lots out of there too, whether at idle or hauling *** even enough to spray oil onto my hood from my breather. i took my head off today and the head gasket( greddy 2mm) looks just fine and so do the walls of my sleeves.

i have a d16y7 bottom end with a y8 pnp head, cam, 2mm head gasket, i boost this thing pretty hard.

i plan on rebuilding this thing totaly, already have a new built head, but my motor i have now seem flawless. i have my pcv valve hooked up, i just have no clue were it can be coming from.... possibly valve seals or, i read it could be a clutch throw out bearing heating up???? could this be the problem. thanks a lot

 

Let me eliminate the throw out bearing for ya, oh and put your flame suit on.

 

blinker fluid mixing in with the flux capacitor

 

thanks for the help, you guys are awesome honda-tech members. i thought we are supposed to help each other out.

 

here is what is what i read about the bearing in another post:


"If you get a lot of blow-by all of a sudden and you have good compression and leak down it may be a bearing overheating.I've seen a thrust bearing problem cause local oil burning and make alot of oil vapor and crankcase pressure.It acted like a broken ring land,but it had good compression.It was caused by a misadjusted clutch.There was no free play and the t.o. bearing always had a little load on it.The oil pressure never dropped because the thrust isn't really pressure fed like the mains and rods.Its lubed by the escaping oil from the main.
Glenn"

i am just trying to get other people opinions

 

Thrust bearing and a throw out bearing are two entirely different things and your quote from Glenn made absolutely no sense.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">Thrust bearing and a throw out bearing are two entirely different things and your quote from Glenn made absolutely no sense.</TD></TR></TABLE>

agreed

i was typing the same thing

a trow out has nothing to do with this
and thru all the engines i have gone thru and worked on in Hondas, i have NEVER seen a thrust bearing problem on a honda motor

 

I thought the thrust bearing is what stops crank walk caused from the cluth.....The clutch that always had a load b/c of mis adjustment

 

yes my mistake, my memory was wrong when i started the post i didnt mean throw out bearing i know that wouldnt cause smoking from my breather. thanks

 

one word: ringlands

have you done a compression or leakdown test?

 

If you would actually pull your pistons out to inspect them i'm sure your ringlands would fall to pieces in your hands.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue &raquo;</TD></TR><TR><TD CLASS="quote">If you would actually pull your pistons out to inspect them i'm sure your ringlands would fall to pieces in your hands.</TD></TR></TABLE>


Additional blow-by is quite common on boosted Honda's. I noticed alot of blow-by coming from my breather when I was on the dyno, it doesn't mean my ringlands are busted. Now if it's coming out excessively at idle, that might be different. Besides, I think blown ringlands would show up in a leakdown most of the time.

 

Yea, but it sounds like his is excessive. I wonder if he has done a leak down or compression test yet. The only times i've seen blowby like he describes the ringlands were usually shot.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC_MShue &raquo;</TD></TR><TR><TD CLASS="quote">Yea, but it sounds like his is excessive. I wonder if he has done a leak down or compression test yet. The only times i've seen blowby like he describes the ringlands were usually shot. </TD></TR></TABLE>

I thought he said he did, but I re-read his post and I guess not.

Pinche, you should have done a leakdown and compression before pulling the head!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pinche &raquo;</TD></TR><TR><TD CLASS="quote">whether at idle or hauling *** even enough to spray oil onto my hood from my breather</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">Now if it's coming out excessively at idle, that might be different. </TD></TR></TABLE>

I would qualify getting oil on the hood at idle from the breather as slightly excessive.

 

no i never did a leak down test before i pulled the head, it was bad enough i figured it for sure was the rings, was just a little surprised that the crosshatch from the stock hone was still there and everything appeared to be just beautiful. but i bet it is the ringlets, i just want to make sure that it cant be any other things, i am going to build everything anyway. just surprised and want to rule everything out. thanks a lot

 

kids these days. dont just go pulling you head to figure your problems 99% of the time visial inspection aint goin to tell you ****. a leak down and compress test will tell 100% what is wrong. the ringland could be broken and cylinder walls can still look perfect. but i bet if you pull the piston they will fall right off the piston

 

My money is on that this will be what you'll see:



My H22 pistons when boosted. All 4 were blown like this, and had similiar blowby you are describing. My sleeves were in good shape too, so that doesnt mean bologna