wrapped head
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From: Toronto
V12TT
warped/damaged cylinder head and valves.
Yup, worse fear confirmed. Can anyone direct me to a used or new cylinder head? For drivers side only. I'd rather purchase a new one than spend money refinishing this head.
TIA
TIA
Last edited by benz_addict; May 17, 2011 at 02:23 AM.
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From: Bay Area, CA
E55 AMG, 72' Toyota Carina, 63' Ford F100, 72' Mercedes 250c, 15' Harley Davidson Softail
beat me to it. If it's not severely warped I would take it to a machine shop and have them resurface the head. much more cost effective approach than locating a new head.
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From: Puerto Rico
2005 E55 AMG
So I'm guessing that was the noise it was making? Can't see why a warped head would make that noise.
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From: Toronto
V12TT
I'm getting good 150-160PSI in all cylinders except number 8 which has 0 compression meaning bent valve and other head related damage. I'm getting ALOT OF blow by pressure probably open intake valve. I'm pulling it out but shopping for a cheaper alternative. If not I'll purchase another head from a member that's here that already offered 
Cyl 6 piston that was replaced in the winter.
Cyl 6 piston that was replaced in the winter.
Last edited by benz_addict; May 16, 2011 at 09:42 PM.
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MBWorld Fanatic!
Joined: Jun 2010
Posts: 4,173
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From: Puerto Rico
2005 E55 AMG
I'm getting good 150-160PSI in all cylinders except number 8 which has 0 compression meaning bent valve and other head related damage. I'm getting ALOT OF blow by pressure probably open intake valve. I'm pulling it out but shopping for a cheaper alternative. If not I'll purchase another head from a member that's here that already offered
Cyl 6 piston that was replaced in the winter.
Cyl 6 piston that was replaced in the winter.
Last edited by GT-ER; May 16, 2011 at 09:55 PM.
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From: Florida-Germany-New York
2004 E55,1969 300SEL6.3,2011 ML350 BlueTec Diesel,2005 ML400 CDI
I'm getting good 150-160PSI in all cylinders except number 8 which has 0 compression meaning bent valve and other head related damage. I'm getting ALOT OF blow by pressure probably open intake valve. I'm pulling it out but shopping for a cheaper alternative. If not I'll purchase another head from a member that's here that already offered
Cyl 6 piston that was replaced in the winter.
Cyl 6 piston that was replaced in the winter.
Blow-by through the crankcase= piston
#8 inevitably runs lean unless you have modified the rail.
Thread Starter
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From: Toronto
V12TT
It makes sense because that noise that was coming sounded like is coming from cyl 8 area. That's where it was the loudest even with when I heard it with the screw driver to my ear. Cyl 8 has zero compression!! 
Thanks for the input guys shardul I will let you know asap which one will be more wise investing in this head or a used one. I have the part numbers for the parts I need but need to verify pricing for:
valve intake:
1130530601 $8.25
x 8
= 72
Valve exhaust:
1130500227 $39.50
x 4
= 160
Valve seat intake:
1130530431 $6.50
x 8
= 56
Valve seat exhaust:
1130530432 $9.75
x 4
= 40
Valve seal:
6120500058 $14.00
Valve spring outter:
1550530120 $19.50
x 12
= 240
valve spring inner:
1550530020 $19.50
x 12
= 240
total: around $1000 in parts give or take
recondition of head: $300~400
total: $1400
Peter or anyone know a good shop around the GTA area please let me know. Just trying to get some quotes.
Thanks for the input guys shardul I will let you know asap which one will be more wise investing in this head or a used one. I have the part numbers for the parts I need but need to verify pricing for:
valve intake:
1130530601 $8.25
x 8
= 72
Valve exhaust:
1130500227 $39.50
x 4
= 160
Valve seat intake:
1130530431 $6.50
x 8
= 56
Valve seat exhaust:
1130530432 $9.75
x 4
= 40
Valve seal:
6120500058 $14.00
Valve spring outter:
1550530120 $19.50
x 12
= 240
valve spring inner:
1550530020 $19.50
x 12
= 240
total: around $1000 in parts give or take
recondition of head: $300~400
total: $1400
Peter or anyone know a good shop around the GTA area please let me know. Just trying to get some quotes.
Last edited by benz_addict; May 17, 2011 at 12:28 AM.
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From: Toronto
V12TT
I don't know but could be when I was doing alot of WOT runs then I noticed a sudden jerk and car started misfiring and making noise since then. I just noticed cyl 8 spark plugs electrode tips were bent. I was told they "melted into that shape" then replaced the plugs and since then it was still misfiring. Cyl 8 has valve float I think with 0 compression. Pics to follow.
Last edited by benz_addict; May 17, 2011 at 02:32 AM.
Member
Joined: Apr 2011
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From: VA
2005 E55 AMG
what can I do to try and avoid this happening besides not doing WOT runs? I just got my car a month ago and keep seeing threads with #8 going bad and want to do everything I can to minimize the chance of this happening. Good luck with the repair OP
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2003 W211 E55, 2003 W220 S600
once you start modding i would recommend a TTM fuel rail and injectors.
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From: Puerto Rico
2005 E55 AMG
Can I assume that *most* people who blew number 8 ( assuming the tune is good ) were doing high speed runs? I'm guessing that perhaps the high injector duty cycle coupled with perhaps a not-so-good flowing rail keeps it lean after an extended run?
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2003 W211 E55, 2003 W220 S600
also it has to have been a super cold day for timing not being pulled.
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C36 AMG
Im no expert, but, i had a car (Not AMG) who made that exact noice, with a melted/bent plug and almost zero compresion. That one had a cracked piston ring lands and a scored cylinder due to detonation.
I would def lift the head before i order or do anything.
I would def lift the head before i order or do anything.
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From: Puerto Rico
2005 E55 AMG
Exactly what I was thinking.
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