need help interpreting compression test results...

[E Dogg]

I just put a new head/gasket on my ka24de(s14) in my 91, the results were as follows #1-195 #2-(205-210) #3(205-210) #4 (205-210) this sounds a little high to me from other results ive seen. btw- I ran the test throttle open with all plugs out.

[Nathan]

Was there a lot of carbon buildup noticeable?

[DAEDALUS]

It is high. Maybe the tester is off a bit, or maybe not. Did you use a stock head gasket? It's more important the numbers are grouped nice and tight like they are. Measure it again after a few thousand miles, with a different tester if possible.

[E Dogg]

i got a brand new gauge(1st use actually). The motor has prolly 500 miles seince head install and i took carbon off my pistons with cleaner, also i dint have my head decked b/c checked out ok, so i dont knwo why its so high.

[navysnail]

and use premium gas to prevent detonation

[marshun]

its not so high that you'll need only 92 octane. :P

but...... i cant really think of what would make it that high. valves adjusted right? how many cycles you pumping when you read?

[MustangManV6]

if ur not running a turbo, Nitrous, or changed your chip to need premium I wouldnt put it in.

[E Dogg]

how does one adjust valves anyways?

[stash420sx]

jee, as long as it doesnt ping or detonate, its a bonus right?

[E Dogg]

well it idles kinda rough and it almost seems my timings off just a tic when everythings lined up, if my cam(s) were a tooth off would this be a result?

[Altiman94]

that could cause the idle issues but not the compression. Try it again maybe the gauge was off.

[E Dogg]

ill check her out again this weekend when im back home

[E Dogg]

on a funny sidenote in an attempt to set my timing properly we cranked the car quite a few times when it was 180 degrees off, and when we corrected the timing my car backfired and my muffler literally blew up.... anyone ever heard of this?

[TrunkMonkey]

my ka has 200psi on all 4 cylinders too.

-demetrius

[MustangManV6]

when we corrected the timing my car backfired and my muffler literally blew up.... anyone ever heard of this?

:rockon

[marshun]

how does one adjust valves anyways?

you got a repair manuel. look it up .

but yer car is running fine now?

[E Dogg]

rough idle a lil bit, and its really loud b/c muffler

ill post a pic of whats left of my exhaust when it comes off