compression test...oh noooo
#1
compression test...oh noooo
So I wanted to do a compression test before I installed the new clutch I got...i don't have a rotary compression tester so I just used a regular piston one. I followed the instructions rotary resurrection has on the website... Front rotor hit 30-35 just fine with the valve pressed in but when released it only reached 70-75..the back rotor 30-35 then 95-100....so what this means its blown n needs a rebuild? The car idles fine boost fine and hold the vaccum at 17 when idle... Any insight guy before I pull my hair out lol
#3
Great. That's just what I wanted to hear:\ this motor has not even 2000 miles on the rebuild (750ish mile break in) tuned in may I was told it was a strong motor, never tracked, always warmed up before wot..... This time I'm gonna rebuild it myself or try to can't get any worse then this
#5
I didn't rebuild it, its a long upsetting story....
I'm very surprised by the results of the compression test. I've Been driving it quite a bit lately and I've been rather impressed. All readings on the gauges seems great even on the apexi power commander.
I'm very surprised by the results of the compression test. I've Been driving it quite a bit lately and I've been rather impressed. All readings on the gauges seems great even on the apexi power commander.
#6
Rotary Enthusiast
iTrader: (4)
Did you have the battery on a charger while cranking, did you do the housing with the lower reading 1st or 2nd, floor the accelerator pedal? If it hot starts fine, has even bounces on all 6 with the valve pressed and shows no drive-ability problems at all I would just do as djseven says and drive it.
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#15
Full Member
iTrader: (2)
Someone with more experience should know but is it possible the OMP loaded a bunch of oil in the rotors housing during the comp test and its burning it off now smoking and all, or possibly you didn't unhook the right fuel pump cut off relay for doing the test. i haven't done a compression test yet so these are just some ideas.
#20
Sharp Claws
iTrader: (30)
you might even wonder why mazda is on their 4th coil revision.
i'm also not biased since i don't make any kits and i think they are overpriced for a basic bracket, some off the shelf coils and a 10 minute labor-to-produce pnp harness for close to $500.
Last edited by RotaryEvolution; 11-03-13 at 10:10 AM.
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