2nd Generation Specific 1986-1992 Discussion

new! need a bit of help

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Old 01-15-2009, 03:21 PM
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hey, my name is mike.I love my rx-7 to death buy im having quite a bit of trouble with it and i need some help. i bought a 86 gxl with a bad motor. took it out ( as you can tell by the picture)and threw in a "new" used motor with a claimed 60k and took off all emissons.



i was having a fuel issue with the front rotor not getting enough gas and the rear getting too much. so i swapped out injectors and now im getting gas to both rotors but it wont start. im getting spark but nothing.



ive tried to deflood it by pulling plugs and fuse and flooring it while i crank untill there is no more gas coming out. but then when i crank it again. no start. plugs are wet. compression sounds great. i have no idea what to do. any help would be really nice.
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Old 01-15-2009, 03:37 PM
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I suppose you might try new plugs. Other than that, maybe battery is tired. How's the cranking speed? Gas is reasonably fresh?
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Old 01-15-2009, 03:37 PM
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Did you check compression on the new motor?
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Old 01-15-2009, 04:57 PM
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gas is new. just put some more in the other day with some premix. idk how fast cranking speed is. i have no other rx7 starter to compare it too. compression sounded great. has all chugs and all pluses are very strong. i do not have a compression tester thou. i should be getting new plugs on tuesday and the battery was fully charged
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Old 01-16-2009, 08:25 AM
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Have you tried hooking any of the emissions stuff back up at least to the computer to see if that might be your problem?
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Old 01-16-2009, 09:06 AM
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Originally Posted by LunchboxCritter' post='914684' date='Jan 16 2009, 09:25 AM
Have you tried hooking any of the emissions stuff back up at least to the computer to see if that might be your problem?
That won't make a difference.



Check compression (with a compression tester), replace plugs, and don't floor it when starting (that's a function that works in the S5 cars, not the S4).
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Old 01-16-2009, 12:19 PM
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do you know your coils are good?
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Old 01-16-2009, 06:25 PM
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the plugs spark. they ark to the manifold when i test them
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Old 01-19-2009, 08:42 AM
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any ideas?
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Old 01-19-2009, 08:51 AM
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good ideas were given- did you check compression?



how old is the battery? Batteries can do funny things, even if they are charged they may not start a car, I have had bad cells cause a new battery not to start the car, but its probably something that is not hooked up properly- triple check everything and dont overlook the basics like firing order and other simple things.
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