Low compression

FoxfireEK · 01-26-2012, 07:23 PM

So when I changed my spark plugs, I checked the compression...
Cylinder 1 around 150 no. 2 was 60 no. 3 was 55 and no. 4 was around 150. Any ideas on the cause of this?

Trekk · 01-26-2012, 07:39 PM

Head gasket broken between 2-3?

00siboy · 01-26-2012, 07:42 PM

Hey I'm in g-wood too broski!

Did you also try a wet compression test? pour about a capful of oil into each cylinder and comp test again. If the compression goes up, then it means you cylinder rings are bad, and pressure is getting past the rings on the compression stroke. If there is no change, could be that your valves are not seating properly, but my money is on the rings. How many miles on the engine?

FoxfireEK · 01-27-2012, 04:43 PM

225k on the car. I'll try to do the wet test this weekend.

01-26-2012, 07:23 PM	#1
FoxfireEK Registered User Join Date: Jun 2010 Location: Greenwood, IN Posts: 50 Reputation level: 10	Low compression So when I changed my spark plugs, I checked the compression... Cylinder 1 around 150 no. 2 was 60 no. 3 was 55 and no. 4 was around 150. Any ideas on the cause of this? __________________ -FF 91 Honda Accord (Sold) 05 Scion xB (Sold) 92 Nissan 240sx SR20 (Sold) 00 Honda Civic (Building) 92 Honda Accord (Daily Driver)

01-26-2012, 07:39 PM	#2
Trekk Registered User Join Date: Aug 2011 Location: Miami Age: 32 Posts: 524 Reputation level: 10	Head gasket broken between 2-3? __________________ My build.http://www.clubcivic.com/board/showthread.php?t=206807 Anyone can be a mechanic, few can be a technician.

01-27-2012, 04:43 PM	#4
FoxfireEK Registered User Join Date: Jun 2010 Location: Greenwood, IN Posts: 50 Reputation level: 10	225k on the car. I'll try to do the wet test this weekend. __________________ -FF 91 Honda Accord (Sold) 05 Scion xB (Sold) 92 Nissan 240sx SR20 (Sold) 00 Honda Civic (Building) 92 Honda Accord (Daily Driver)

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01-26-2012, 07:42 PM	#3
00siboy lurkin... Join Date: Sep 2011 Location: Indiana Posts: 1,404 Reputation level: 10	Hey I'm in g-wood too broski! Did you also try a wet compression test? pour about a capful of oil into each cylinder and comp test again. If the compression goes up, then it means you cylinder rings are bad, and pressure is getting past the rings on the compression stroke. If there is no change, could be that your valves are not seating properly, but my money is on the rings. How many miles on the engine?

Low compression

6th Generation Honda Civic (1996-2000)