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Old 11-22-2008, 03:53 PM   #1
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bad cylinder head???

can anyone tell me what would be some symptoms of a bad cylinder head without having to pay a shop to take it apart to tell me that its bad?
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Old 11-22-2008, 04:01 PM   #2
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can anyone tell me what would be some symptoms of a bad cylinder head without having to pay a shop to take it apart to tell me that its bad?
Cylinder heads themselves don't usually go bad, unless it is cracked or warped. It's usually valvetrain related or head gasket related.

What symptoms do you have?
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Old 11-22-2008, 04:15 PM   #3
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i bought an 03 a month ago after testing it out with no problems. well recently my car was bogging down everytime i hit about 8 grand rpms and going into limp mode.

i took it to my local Honda dealer and after the raped me of my "diognostics" money, they said there is an aftermarket head and valve springs and bad wiring splicing.

so i took it to a performance shop that specializes in s2k's and NSX's and the rewired everything and tightend the sensors and everything ran great for a week. no its going into limp mode again so im thinking back to Honda saying there was an aftermarket head and valve springs. Could that be the problem??
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Old 11-22-2008, 04:27 PM   #4
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What exactly was wired bad? I'm not aware of an aftermarket head for this car, I don't think one exists. The OEM head can be machined though (seats, ported, etc.) and the valvetrain may be aftermarket (springs, retainers, cams, valves, guides, etc.)

Why does the Honda dealer think the head is aftermarket? Did the other shop confirm this?
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Old 11-22-2008, 06:59 PM   #5
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im guessing Honda may have not fully understood the problem so thats what they told me. the other shop didnt look into the engine to confirm this because the apparently fixed the problem by fixing the wire splicing of the crank and cam sensors. But now its acting up again so i will have them check out the valvtrain i guess. Maybe a sparkplug issue. im not sure
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Old 11-22-2008, 09:16 PM   #6
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I wouldnt suggest taking anything aftermarket to a dealership. Thats not what they specialize in so theyre learning as they go. As the car guy said I dont think anyone makes a aftermarket head for the s2000.
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Old 11-23-2008, 10:19 AM   #7
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ya i looked it up online i couldnt find any aftermarket heads either. just valvetrains.

i think my engine would be messing up alot more though if it was a cylinder head prolem
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Old 11-23-2008, 02:13 PM   #8
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I any sensors were not working properly you would get a cel. You need to find a "reputable dealer" and hook it up to a pgm tester to see what's really going on electrically. Mechanically, do a compression test and a leak down and you will know what state the cylinders and valves are in.

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Old 11-26-2008, 09:49 AM   #9
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so i took my car to a Honda performance shop. After all the wiring of teh head and sensors checked out. And the valve springs and everything else under the valve cover checked out, teh problem still persists.

They now are 75 % sure that the only remaining place to check would be under the Timing cover, and that the crank pulley magnet sensor thingy may be loose or difective. but they want 350 bucks to open it up to check!!

what a nightmare
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Old 11-26-2008, 09:49 AM
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