08-30-2005
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#1
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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head issues
LOL
I did a leakdown test last night and gave up.
Put #1 to TDC , hook up air/gauges, 100psi drops down to 12psi . i listen to air, its coming out of spark plug hole on cyl#2 WTF
i put it on #4 hook up leakdown tester, shows 89 on this one.
move #2 to TDC, hear air coming throu #1 shows 12psi on the gauge
check on #3, air coming out of #1 shows 12psi on gauge..
how are #1 and 2and 3 tied together? any possible way?
-e
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08-30-2005
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#2
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Shit Rocket Pilot
Join Date: Oct 2003
Location: Shoreview, MN
Drives: 2003 Evolution VIII
Posts: 7,752
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Re: head issues
It's all in your head. 
Honestly, the only thing seperating the cylinders are the pistons and the head gasket.
__________________
"If everything seems under control, you're just not going fast enough." -Mario Andretti
03 Mitsubishi Lancer Evolution VIII
Quote:
Originally Posted by Tachyon
Every minute you spend in your Evo, not in boost, is a minute of your life you'll never get back.
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08-30-2005
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#3
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back in the saddle again
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Re: head issues
Quote:
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Originally Posted by Matt D.
It's all in your head.
Honestly, the only thing seperating the cylinders are the pistons and the head gasket. |
You mean block and headgasket?
When you are doing a 'leak' test enes, pop off the radiator cap and listen for boiling. If you hear bubbling, you have a blown headgasket. They really shouldn't be pressurizing each other, unless you are pushing it past the rings into the crank case...
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My street car runs low 11's and my race car's personal best is a mid 11....
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08-30-2005
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#4
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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Re: head issues
Yeah i had the oil cap off, and i had the radiator cap off as well. no bubles there but that s probably because it can't build enough preassure in the cyl to get there. Since its all escaping into the cyl next to it.
If taking engine out didn't involve doing trany as well i'd so be taking the engine out of the bish right now. Or i should ask how hard is it to take engine out while keeping trany in there and then connecting it back together?
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08-30-2005
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#5
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flips McGee
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Re: head issues
If you're pulling the motor, pull it w/ the tranny attatched. It'll save you some headaches.
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08-30-2005
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#6
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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Re: head issues
yeah i supose its easier, but is it worth it to take whole engine out to do headgasket?
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08-30-2005
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#7
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formerly ecoli
Join Date: Oct 2003
Location: On the dyno
Posts: 4,892
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Re: head issues
No.
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08-30-2005
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#8
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Is funding Exxon.
Join Date: Oct 2003
Location: Ham Lake
Drives: like a bat outta hell!
Posts: 7,983
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Re: head issues
Just pull the head off. You should be able to have it off in a few hours, then you can see what the problem is.
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Is burning corn and stayin' warm!
My motorcycle is stock and reliable, my Talon is neither!
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08-30-2005
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#9
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Join Date: Sep 2004
Location: Wisconsin
Posts: 1,411
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Re: head issues
Enes- weren't you have troubles before with bad overheating? Head could be warped. Or am i thinking of someone else? I know you had some smoke troubles or something but i can't remember what the details were.
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08-30-2005
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#10
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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Re: head issues
it overheated a bit due to me leting it idle on turbo timer (no fans) without supervision.
i do have to mention the testing i did was on cold engine. will do it again tonight after i let it warm up
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08-30-2005
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#11
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Join Date: Sep 2004
Location: Wisconsin
Posts: 1,411
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Re: head issues
Does it smoke white at all?
How about oil on the dipstick, is it milky looking?
Those cylinders shouldn't be associated with one another at all. Air would have to bypass one set of rings, go into the crankcase, travel up to another cylinder and bypass its rings. My guess is the headgasket is shot.
I used a stock headgasket, and i sprayed each side with copper spray when i redid my head. Been holding up fine. Are you using ARP's? What's the most boost you hit with your 50trim so far?
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08-30-2005
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#12
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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Re: head issues
ARP's, 24psi 111 octane.
oil is clean, coolant is clean
its probably blown between cylinders, even tho the car idles and runs just fine..
super weird.
-E
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08-30-2005
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#13
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Is funding Exxon.
Join Date: Oct 2003
Location: Ham Lake
Drives: like a bat outta hell!
Posts: 7,983
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Re: head issues
Why bother checking it when it is warm? If it is bad, it is bad. Let me know when you get the head pulled off. I have only seen DSM headgaskets blow from the cylinder to a coolant passage (except for my metal one last year that melted out the back side of the head).
__________________
Is burning corn and stayin' warm!
My motorcycle is stock and reliable, my Talon is neither!
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08-30-2005
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#14
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Resident Redneck
Join Date: Jul 2005
Location: Corpus Christi, Texas
Posts: 415
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Re: head issues
Did you TDC the cylinder right after the exaust valves closed or when the intake valves closed? If you try to pressure up the cylinder during overlap it will do what you are describing.
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08-30-2005
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#15
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formerly ecoli
Join Date: Oct 2003
Location: On the dyno
Posts: 4,892
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Re: head issues
Are you sure you did the test on the compression stroke at TDC and not just at TDC?
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08-30-2005
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#16
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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Re: head issues
uhm... stupidity at its best... proven..
not sure, i just got it to TDC and did it. yaay RTFM
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08-30-2005
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#17
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Resident Redneck
Join Date: Jul 2005
Location: Corpus Christi, Texas
Posts: 415
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Re: head issues
Quote:
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Originally Posted by Enes
uhm... stupidity at its best... proven..
not sure, i just got it to TDC and did it. yaay RTFM
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Do you know how to check to see if you're on the compression stroke? |
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08-30-2005
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#18
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Shit Rocket Pilot
Join Date: Oct 2003
Location: Shoreview, MN
Drives: 2003 Evolution VIII
Posts: 7,752
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Re: head issues
Hahah, oh man... Let's us know how that goes for you. 
__________________
"If everything seems under control, you're just not going fast enough." -Mario Andretti
03 Mitsubishi Lancer Evolution VIII
Quote:
Originally Posted by Tachyon
Every minute you spend in your Evo, not in boost, is a minute of your life you'll never get back.
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08-30-2005
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#19
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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Re: head issues
please advise on how to check to see if i'm on compression stroke..
;p
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08-31-2005
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#20
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Join Date: Aug 2003
Location: Blaine
Posts: 2,789
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Re: head issues
So how do i determine that Cyl1 is on compression stroke, ?
same should apply to #4 at the same time correct? or are they not at the same stage?
-E
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