fourthgenhatch

so last night i finished up the dpfi to mpfi swap in my hatch and put in the 450's. i also just got done swapping the d16a6 in it which was running fine in my hatch after i put in my socket and started using turboedit with the ostrich.

so last nite i took it out for a test spin, and yes i switched the injectors to 450's on turboedit. the car was actin kinda funny, for 1k-2k it was good, then 2k-3k it would kinda bog, the 3k-4k it was good, the 4k-5k it would bog, the 5k-6k it was good kinda like that anyways. i think this is due to my cam timing being a little off as you may have seen in my other post.

then as i'm heading home the temp gauge starts goin up, up, up. and as i'm pulling in the driveway its all the way up top and it was barely runnin. when i cut it off it made this weird kind of ticking sound and cut off really weird. it kinda bogged, then shut off instantly. i pulled off the oil cap and it was steamin a little, then i pulled off the valve cover and nothing looks bad on the top side, but i'm worried about the valves alot.

i found the leak in the coolant system, it was on the firewall where the coolant feeds into the car right under the throttle body. i can fix this by pulling the one off my other crx, but i'm worried that i may have done something detrimental to the head or engine overall. when i get home later i'm gonna pull the plugs and look in there with a flashlight to see if i can see anything.

anybody done this before and whanna tell me if you think i fucked something up really bad.

thanks

and i'm a ------- retard for not catching that leak earlier :1

mugenblacky16

I left my car running in the driveway on a hot summer day and went inside. I came out like 10-15 minutes later and steam was shooting out every crack of the front end. I shut the car off and thought it was done for. Temp gauge was maxed out. I found out that a rusty fan wire broke plus I was a little low on coolant. Let the car cool completely down, fixed the wire, top off the radiator. Started it up and it ran fine. That was about 8k miles ago and still no problems... If it didn't overheat for too long and there was at least some coolant running through the block it should be ok, but cross your fingers. Good luck.
-Andy

Donald125

NO. You are a ------- retard only because you didn`t stop right when u see the gauge goes up.

You might get lucky or, look for oil in coolent or coolent in oil. most of the time it is a wrapped head or blown headgasket.

fourthgenhatch

well there aint much coolant left, and yeah i'm really just a retard overall :1

but thanks for the help guys, it's been chillin in the garage for a day now so i think its probly cooled off :P

well i'll let ya know how it goes after i fix the timing and the leak

fourthgenhatch

well i pulled the plugs and they were white on the tips, that means coolant was burning right? also, i couldn't see anything down in the cylinders, but it did look like some oil had gotten in, these are new pistons (20 miles old maybe) and they had a grey black tint.

well i fixed the leak, reset the timing and filled back up the coolant. i tried cranking the car for a little while, but no luck. i pulled the plugs again and they were soaked, mostly with fuel, but i'm thinking some of it was coolant. i also opened the radiator back up and was able to fill it up a little more, seems like the water was down to about the level of the headgasket, so that was a good indicator too. i'm just about positive i blew my headgasket, but i'm gonna do a leak down test tonight and check it out.

is overheating the most common way to blow a head gasket?

also, what does the white on the plugs mean?

thanks

edit: also i was getting cel codes 1, 10, and 14. i reset the ecu and then it only said 10 and 14 which is eacv/iacv and the iat sensor. i just did the dpfi to mpfi and swapped some of the plugs around cause some are the same but different colors and now i've got all the cel's to go away, but the plug going into the iacv is a green one and not the clearish like i thought it was suppose to be.

anybody got any info on the plug colors?

mugenblacky16

Overheating is usually the result of blowing a headgsket, not the other way around. The headgasket probably went first. I don't know about coolant leaving the plugs white, but running lean can. Did you have any detination on your test drive? Maybe a lean mixture cause some detination that lifted your head and either blow the HG or kept it from sealing. I would remove the head and take a look. Good luck.

Donald125

It goes both way, buddy
:P

fourthgenhatch

yeah that's kinda what i was thinkin. i do have arp head studs if that makes difference, but the head gasket was a not so great quality one from topline automotive, it was a metal one though. anyways, i think the leakdown will tell me alot and then i'll pull off the head, just don't wanna be pullin off the head for nothing.

fourthgenhatch

alright well the compression test results: 150-170-170-150

pretty obviously a blown headgasket. so i pulled the head, only took about an hour well here's what the head and block looked like, i think they'll be just fine.


nothing here, i cleaned up the deck with a paint scraper from walmart, making sure not to dig into the aluminum


here's before i cleaned it up


cleaned the surface with the putty knife, then i took a rag and removed the leftover gasket and the little bit of carbon buildup on the valves

you can't really see in the pics, but about 1/2" away from the edges of the cc, the metal is brownish, is that just from the rust and ---- inside the cooling system?

also, i really need to get new plugs, should i go ahead and get colder plugs since it'll be turbo in a month?
the old plugs where white tipped, w/ black electrodes probly from burnin the coolant, and runnin a lean mixture, then overheating. i need to do a tune cause i opened up the ports a little bit and have the bigger injectors now. need to get the o2 sensor up and running tomorrow, then get a cable for datalogging.

Donald125

150-170-170-150 doens`t nessery means it is the HG
could have done some other test before u pull the head oh well :1

since u have the head out. replace the Hg and don`t forget to have teh head re-surfaced.