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What did I break?

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Old 11-05-04, 03:41 PM
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What did I break?

I was blasting through 4th gear on the highway shifted into 5th and shortly after noticed a severe decrease in power. I got off the freeway and my turbo II isn't running smooth at all. It's hard to get it rolling. I park it at my friends house and try to start it again. Won't start. I come back today and it starts up and runs the same as last night. I get it to my house and same story, when its warmed up it won't start. I pull the plug wires to see which side is messed up. The rear ignition made no difference when I pulled it. I check the compression on the rear and get 3 50psi "bumps" on a pretty cheap compression gauge. Does anybody have any clue what happened?
Old 11-05-04, 03:45 PM
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Boosted. I got BLOWN!!!

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Well if that gauge is accurate and you are only getting 50psi, then your motor is finished.
Old 11-05-04, 03:46 PM
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you should be seeing 90 psi bumps or more on a standard pressure gauge...

does it idle like crap?????????
Old 11-05-04, 03:49 PM
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Originally Posted by YearsOfDecay
you should be seeing 90 psi bumps or more on a standard pressure gauge...

does it idle like crap?????????

Sowhere, in the distance, over the apex seal graveyard.. I can swear i can hear "Taps" being played, softly, on a Racing Beat downpipe
Old 11-05-04, 03:50 PM
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I really need to check the compression again on a better gauge to be sure.
Old 11-05-04, 04:13 PM
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Engine, Not Motor

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http://www.aaroncake.net/rx-7/blown.htm
Old 11-05-04, 04:38 PM
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Originally Posted by YearsOfDecay
Sowhere, in the distance, over the apex seal graveyard.. I can swear i can hear "Taps" being played, softly, on a Racing Beat downpipe
i swear to god i just peed myself laughing.
Old 11-05-04, 05:33 PM
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Originally Posted by Aaron Cake
Thanks a lot man. I did the pull the leading plug and listen to the pssst's, I came up with 2 weak pulses and 1 strong pulse, would that mean a cracked apex seal maybe? Or totally blown
Old 11-05-04, 07:44 PM
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a cracked apex means its totally blown, as in...start saving up!!
Old 11-05-04, 09:18 PM
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when u first start ur car does it run fine or does it run shitty? cuz i have the same power loss when warm but it runs fine when i first start it and drive it and when ur car is screwed up what does it idle at? mine seems to idle at like 250 it shakes like a **** at around 500) i also have a 87 n/a im getting quite stressed out trying to find out why my car is doign this. side not where do u buy the compression testers (i dont meen to highjack the thread)
Old 11-05-04, 11:35 PM
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Originally Posted by CRXtoRX7
a cracked apex means its totally blown, as in...start saving up!!
I know a cracked apex seal is just as worse as a blowed up one, but with the cracked one there is a less chance of a f*ed up housing, or turbo.
Old 11-05-04, 11:36 PM
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Originally Posted by toothpicsk8
when u first start ur car does it run fine or does it run shitty? cuz i have the same power loss when warm but it runs fine when i first start it and drive it and when ur car is screwed up what does it idle at? mine seems to idle at like 250 it shakes like a **** at around 500) i also have a 87 n/a im getting quite stressed out trying to find out why my car is doign this. side not where do u buy the compression testers (i dont meen to highjack the thread)
Mine just runs terrible all the time, its blown for sure.
Old 11-05-04, 11:50 PM
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pull the engine, the song is over..
Old 11-06-04, 05:05 PM
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i took my cat off and ran it with a one foot in length pipe off the header( verry verry loud) and it ran fine. hopefully it was my cat and nothign elts
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