Compression test procedure?
04-26-2005, 02:17 PM
#1
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Compression test procedure?
From searching, I have learned that I should actually let the car warm up first. Higher temps will yield lower compression numbers, but give a truer read.
Besides pulling the spark plugs, do I need to pull any fuses? When turning the car over, do I need to apply throttle? Any help is appreciated.
Skip
Besides pulling the spark plugs, do I need to pull any fuses? When turning the car over, do I need to apply throttle? Any help is appreciated.
Skip
04-26-2005, 05:09 PM
#2
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I know it's only been a few hours, but s2ki people have spoiled me. 
HELP! I've never done it before and I did not find the procedure in my manual.
HELP! I've never done it before and I did not find the procedure in my manual.
04-27-2005, 08:30 AM
#4
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Originally Posted by SC_Highlander,Apr 26 2005, 08:44 PM
I know you want to disable the fuel system. Which fuse to pull -- that I do not know.
04-30-2005, 06:24 PM
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Originally Posted by PWRMKR,Apr 28 2005, 11:58 PM
WOT
Full throttle on the test. Also, pull all spark plugs, you'll be doing it anyway and it'll be easier on the starter motor and battery.On older cars that have a single coil, you need to ground the ignition system as well but I'm not sure that necessary with the S2000. Anyone know for sure?
Good luck & let us know what numbers you get!
Drive Safe,
Steve R.
Edit: I'm not sure about getting lower numbers with a warmed up engine. I was taught that the heat expansion that the internal parts (ie: pistons and rings?) go through in a warm engine helps everything to seal properly so you should, if I'm right, get better compression numbers with a warm engine than a cold one. Not to mention that with everything warmed up, the internals should be better lubed. Just a thought!
05-01-2005, 06:08 PM
#7
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Again, thank you all. I did not get the chance to do the test before attending the Vintage Spring Fling meet this weekend. Hope to do it tomorrow.
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05-06-2005, 08:15 AM
#8
Originally Posted by SC_Highlander,Apr 26 2005, 09:44 PM
I know you want to disable the fuel system. Which fuse to pull -- that I do not know.
Fuse layout label is on the kick panel.
01-06-2006, 06:28 PM
#9
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...............and what else?
I just bought a gauge today and am looking forward to using it.
I just bought a gauge today and am looking forward to using it.
02-14-2006, 10:18 AM
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just did this yesterday, its quick and easy and gives you a peace of mind.
I recommend keeping something to jump start your car nearby cause its very likely you could run your battery out turning your motor over so many times.
Mine came to 215-225 across all of them, first glance I'd say this is well in norm. Any second opinions from others that have done this?
I recommend keeping something to jump start your car nearby cause its very likely you could run your battery out turning your motor over so many times.
Mine came to 215-225 across all of them, first glance I'd say this is well in norm. Any second opinions from others that have done this?