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rebuilt enigne questions

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Old 08-15-04, 03:47 AM
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rebuilt enigne questions

my friend got his engine rebuilt it is a s5 turbo but i think it has s4 rotors with new housings and ported a little it runs ok but it seem like it runs one rotor until like 3000 rpm and if you are driving in like 3rd at like 2000rpm and step on the gas it don't want to go for like a sec or two we made sure the wiring to the injectors were pluged in and swaped them with differents ones to see that was not the problem
Old 08-15-04, 04:36 AM
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1. What is your question?

2. Go to walmart and buy some periods for you sentences.

3. Yes, I know I'm an ***, but it's 3:36 am.

Last edited by Project84; 08-15-04 at 04:39 AM.
Old 08-15-04, 04:44 AM
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did he have his injectors cleaned?
Old 08-15-04, 11:33 PM
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i was kinda tired. my question was why does it like run on one rotor for a while then kick in around 3000 and we tested other injectors and it still did the same thing.he was going to send them to have the injectors cleaned but he didn't.
Old 08-15-04, 11:39 PM
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1. Clean your injectors
2. Make sure you're getting spark
3. Make sure you're getting fuel
Old 08-16-04, 10:03 AM
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we put the timing light on each plug and it was geting spark and it should be geting fuel. the injecors may need to be cleaned but we had other ones to test it out with.
Old 08-16-04, 10:57 AM
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A compression test will tell if the seals have yet to break in on one rotor.
Old 08-16-04, 11:11 AM
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Where you said that you step on the pedal and it does not take off for a few seconds.......It's possible the outboard set of secondary throttle plates are hanging up on it cam/dashpot. Pull the intercooler and watch the linkage for the outboard of secondary throttle plates while you open and close the throttle numerous times.
Old 08-16-04, 11:44 AM
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How did you conclude that it's running S4 rotors???
Man, I can't even tell the difference, so you must be some sorta master!


-Ted
Old 08-16-04, 11:50 AM
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Originally Posted by rx-7fc
we put the timing light on each plug and it was geting spark and it should be geting fuel. the injecors may need to be cleaned but we had other ones to test it out with.
I'm not sure how you tested them, but go ahead and do the test outlined in the FSM. Basically keep them hooked up and spraying into a cup if I remember properly.
Old 08-17-04, 04:46 PM
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the car seems to run on one rotor but then run ok after 3000rpm .the guy that built his engine used s4 rotors thats how i know. it seem like it has good compression but i will ask my friend that has a compression tester to bring it by it is the mazda one not a normal one.
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