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Old 03-25-2011, 05:02 PM
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Real Name: Raul
Hybrids: 2007 Civic Hybrid
Posts: 34
Default 2007 Civic Hybrid Head 240 PSI Engine Compression? What the HELL. is this normal?

WOW. i just did an Cylinder Head JOB. replace exhaust valve and head gasket.. everythings looks good.

but the Engine Compression is 240-246 Average compression

Why so high. is that normal?

and yes. i did check and adjust Valve Clearance Perfectly
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Old 03-25-2011, 07:26 PM
Mendel Leisk's Avatar
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Location: Coquitlam BC, Canada (Greater Vancouver area)
Hybrids: 2010 Toyota Prius Touring (& former HCHII owner)
Posts: 728
Default Re: 2007 Civic Hybrid Head 240 PSI Engine Compression? What the HELL. is this normal

Carbon build-up reducing the air volume?
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Old 03-25-2011, 07:28 PM
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Real Name: Raul
Hybrids: 2007 Civic Hybrid
Posts: 34
Default Re: 2007 Civic Hybrid Head 240 PSI Engine Compression? What the HELL. is this normal

Can't Be

There is no Carbon-Up on the Cylinder Head at ALL.

IT's been from the machine SHOP..

Even the Piston Head Was SHINY before i install it.

Everything Was SHiny.

SO nope. no carbon BUilt up..
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Old 04-14-2011, 07:02 AM
Seeburg220's Avatar
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Real Name: Mark
Hybrids: (2) 2008 HCH, 2009 HCH
Posts: 13
Default Re: 2007 Civic Hybrid Head 240 PSI Engine Compression? What the HELL. is this normal

Check it with another compression gauge before you go tearing it down again. Curious - why the rebuild in the first place ?

.

2009 HCH, 2008 HCH
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Old 04-14-2011, 07:45 AM
Ridiculously Active Enthusiast
 
Real Name: Harold Wilkie
Location: Grand Forks B.C.
Hybrids: HCH 11 2006/ Prius 2006
Posts: 1,952
Default Re: 2007 Civic Hybrid Head 240 PSI Engine Compression? What the HELL. is this normal

I believe a chunk broke away from one valve? H
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Old 04-14-2011, 09:09 PM
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Real Name: Raul
Hybrids: 2007 Civic Hybrid
Posts: 34
Default Re: 2007 Civic Hybrid Head 240 PSI Engine Compression? What the HELL. is this normal

Correct.

My #2 cylinder Exhaust Valve was damage
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Old 05-03-2011, 06:29 AM
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Real Name: bloom
Hybrids: Honda Element hybrid
Posts: 3
Default Re: 2007 Civic Hybrid Head 240 PSI Engine Compression? What the HELL. is this normal

Quote:
Originally Posted by longstand View Post
WOW. i just did an Cylinder Head JOB. replace exhaust valve and head gasket.. everythings looks good.

but the Engine Compression is 240-246 Average compression

Why so high. is that normal?

and yes. i did check and adjust Valve Clearance Perfectly
Usually, vehicles with hybrid engine has high Engine Compression, but as high as 240-246. Check your Engines' compression gauge before fixing it.
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Old 05-03-2011, 06:29 AM
 
 
 
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