2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

is my motor blown?

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Old Jun 17, 2007 | 03:11 PM
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13bturbofc's Avatar
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mmm doritos
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From: lancaster PA
Unhappy is my motor blown?

well i just finished my new turbo setup and microtech and i started the car and it runs ok considering there is no tune yet...it idles rough but seems to smooth out when you give it more throttle but its been flooding out on me so today it wouldnt start so i took the plugs out and just figured id crank the motor without the plug in and on the front rotor i heard 3 loud puffs from the compression and in the rear ther was hardly anything i tried to run a comp. test but my tester wasnt working so i put the plugs back in and it started for me and runs half decent...could the rear rotor be blown? when i parked it to do the new install it ran pefect and the motor only has like 10,000 miles on the rebuild and there is no way it could have blown from just starting it.. it is supposed to have a base map to be able to start the motor then go get a tune right? i just cant see what could have happend...any ideas? im suposed to go to get this tuned on the 28th.... im so upset right now i just wanna push this car off a cliff!!!
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Old Jun 18, 2007 | 07:17 AM
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mmm doritos
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From: lancaster PA
how can it run at all with one rotor completly blown like it sounds it is?
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Old Jun 18, 2007 | 07:57 AM
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From: Orange Park FL (near Jax)
The 13B will run on one rotor as long as the other rotor is not damaged in such a way as to add a lot of drag.

I'd start with the ATF trick on the rear & see if the seals are stuck.
Then pull the manifolds & do a visual inspection through the exhaust port.

Good luck..
-Bill
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Old Jun 18, 2007 | 02:24 PM
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mmm doritos
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From: lancaster PA
i was gonna try the ATF thing but is it possible for all three of the seals to be stuck? i would think that only the seals that where in the compressed state when it sat would be stuck but thats just what i thought i dont know if that is true
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Old Jun 18, 2007 | 03:36 PM
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mmm doritos
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From: lancaster PA
ok so i think it was just a false alarm....here what happend is i didnt have the gas pedal to the floor when cranking it i guess ...so it couldnt pull any air in..now it sounds fine when i do it with the pedal down....i never knew that would make a difference....im such a dumbass..lol
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Old Jun 18, 2007 | 06:06 PM
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Good job getting it running. PS. you only need 2 stuck seals for no compression.
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Old Jun 18, 2007 | 06:16 PM
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the microtech base maps are not a good basis for idling or driving, in your microtech manual there is procedures for setting up the idle and off idle mixture maps to clean it up, the base maps are a bit on the rich side for most setups but it mainly depends on which injectors you are using but you will need to make adjustments for it to idle smooth and drive half way decent.
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Old Jun 18, 2007 | 06:17 PM
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From: Lancaster, PA
Originally Posted by 13bturbofc
ok so i think it was just a false alarm....here what happend is i didnt have the gas pedal to the floor when cranking it i guess ...so it couldnt pull any air in..now it sounds fine when i do it with the pedal down....i never knew that would make a difference....im such a dumbass..lol
Thank you jesus, I wasent trying to wait another month to take a ride in this beast!!
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Old Jun 18, 2007 | 06:43 PM
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From: lancaster PA
Originally Posted by Karack
the microtech base maps are not a good basis for idling or driving, in your microtech manual there is procedures for setting up the idle and off idle mixture maps to clean it up, the base maps are a bit on the rich side for most setups but it mainly depends on which injectors you are using but you will need to make adjustments for it to idle smooth and drive half way decent.
yeah its definetly running way rich it smokes hardcore just at idle and as soon as the 1600cc secondaries come on it just cuts out cause the large amount of fuel..i tried to take it on the road but its just so rich u cant even give it gas cause it will just die..unfortunitly that microtech book is quite difficult for me to understand cause this is my first standalone ive had
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