  GasSavers_TomO HERE... 05-21-2007, 10:05 AM
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05-21-2007, 04:13 AM
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#1
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Registered Member
Join Date: Apr 2006
Posts: 228
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Compression Test Q
I am going to do a compression check on my vx in the next couple days...its been a while since ive done it...and that was on a vw. I know how to take the plugs out, and i have the plug wrench.
Do you do a comp. test with the engine warm?
To keep the engine from starting do you just remove the distrib. cap?
I figure if there are any problems, i can have the mechanic look at the assoc. valves when he replaces the timing belt in a few days.
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05-21-2007, 04:37 AM
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#2
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Registered Member
Join Date: Jan 2007
Posts: 81
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Do it with the engine fully warmed up. You can just disconnect the wires from the spark plugs to keep the engine from starting. You will need an assistant to crank the engine while you check the compression.
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05-21-2007, 05:28 AM
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#3
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Registered Member
Join Date: Jan 2007
Posts: 291
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I usually like to disconnect the primary side (low voltage) of the ignition coil for safety, and disable the fuel somehow (depends on the car), for mine I unhook the single fuel injector plug. You could pull a fuse on some cars for the fuel pump. I just don't like the thought of fuel dumping in the cylinders while testing  . In most cases you are supposed to hold the throttle down while cranking for best results. Find specs for the normal psi you should be seeing too  .
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05-21-2007, 10:05 AM
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#4
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Registered Member
Join Date: Oct 2006
Posts: 1,108
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HERE is a good how-to for honda motors.
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Honda Civic VX Info/Links
Remember to use good Webiquette!
Quote:
Originally Posted by ezeedee
controversy is an idea thought up by weak people who are too afraid to hear the truth.
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05-22-2007, 05:41 AM
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#5
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Registered Member
Join Date: Apr 2006
Posts: 228
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thanks, i wouldnt have thought about the fuel injection or holding the petal to the floor! will give a try in the next couple days.
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06-03-2007, 02:49 AM
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#6
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Registered Member
Join Date: Apr 2006
Posts: 228
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Do I just disconnect fuse #12 (underhood) (ECU-ECM) (15 A) to disable the fuel injection?
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06-03-2007, 08:40 AM
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#7
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Registered Member
Join Date: Oct 2006
Posts: 1,108
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double check the link I posted above, but IIRC yes, that is the fuse that disables the ECU, thus disabling the Fuel Injection and Distributor.
__________________
Honda Civic VX Info/Links
Remember to use good Webiquette!
Quote:
Originally Posted by ezeedee
controversy is an idea thought up by weak people who are too afraid to hear the truth.
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06-03-2007, 11:18 AM
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#8
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Registered Member
Join Date: May 2007
Posts: 463
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Yeah, the ECU fuse should take care of it. I like to unplug the 2 wire distributor connector as well, just to be safe. The two wires are ignition switched power for the coil, ignitor, ect. and the tachometer signal.
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06-09-2007, 11:41 AM
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#9
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Registered Member
Join Date: Apr 2006
Posts: 228
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I did the test. Looks like no problems right around 200 psi for each cylinder... 
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06-09-2007, 02:31 PM
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#10
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Registered Member
Join Date: May 2007
Posts: 135
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James
The Info on your Low Roller mentions pizza pan wheels. I'd like to see a pic & maybe some info on how you attached them.
I wish my VX had the rub strips like yours!
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