Pulled heads - does this look normal?
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,296
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From: Largo Florida
Pulled heads - does this look normal?
Is the copper color area normal? I thought all of it would be covered with carbon. One guy told me that that is evidence of coolant leaking in. Anyone else?
[Modified by ericcer, 5:25 PM 1/23/2004]
[Modified by ericcer, 5:25 PM 1/23/2004]
Intermediate
Joined: Nov 2003
Posts: 37
Likes: 0
Re: Pulled heads - does this look normal? (ericcer)
Looks fine to me. The mixture was'right on' an compression good to promote an even burn of all cyc. BTW how manny miles?Are ya doing an extensive mod. Keep us posted.
I'd like to have an LT4(bad) :yesnod:
I'd like to have an LT4(bad) :yesnod:
Drifting
Joined: Dec 2002
Posts: 1,861
Likes: 4
From: Houston TX
Re: Pulled heads - does this look normal? (abtanner)
Looks like you've been burning some oil. As far as the copper color, I'm a little confused as to where that came from. They're not iron heads, so it's not rust. I've never seen coolant do that with that color before...besides, usually if you're burning coolant, the plugs and chambers look steamcleaned.
Drifting
Joined: Dec 2002
Posts: 1,861
Likes: 4
From: Houston TX
Re: Pulled heads - does this look normal? (ericcer)
Well then it must have been running rich. The Dexcool could do that, though I've never torn down a motor with Dexcool in it. I *do* know that Dexcool does some funky things.
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Re: Pulled heads - does this look normal? (ericcer)
The lighting isn't the best, or the exposure is a little fast to see the combustion cambers. The "copper" color in the quench area of all the cylinders, don't look like a problem, either. What catches MY eye is the brassy-green area in the top photo, right side, between the water transfer port and the intake ports. THAT looks like a head gasket leak, to me. Otherwise, as best as can be seen, the chambers DO look pretty dark. I can't tell if it is from running rich or oil burning. Good luck, and...
RACE ON!!!
RACE ON!!!
Safety Car
Joined: Dec 2000
Posts: 3,767
Likes: 5
From: Jacksonville Fl
Re: Pulled heads - does this look normal? (ericcer)
Looks fine but I would check heads for cracks or pitting, especially the gasket sealing area of the heads next to the outer bolt holes.
The copper color comes from excessive amounts of fuel system additives such as techroline from exxon; fuel injector cleaners or from octane boosters. (well, octane boosters normally leave things purple.)
The copper color comes from excessive amounts of fuel system additives such as techroline from exxon; fuel injector cleaners or from octane boosters. (well, octane boosters normally leave things purple.)
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Re: Pulled heads - does this look normal? (BBA)
The signs of richness was when I was running open loop and did not have an A/F meter. I was running that way for some time.
The brassy-green area may be from the oil that leaking on it when taking the head off. The camera looks to be off a bit for the color with the flash.
The brassy-green area may be from the oil that leaking on it when taking the head off. The camera looks to be off a bit for the color with the flash.
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