1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Dies at low RPM

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Old 11-11-05, 01:31 PM
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Dies at low RPM

Hello,

I recently inherited an 83 rx-7, and today It decided it was going to die at low rpms (<1000) I managed to get it home by holding the choke, but I really want to get it fixed. It doesnt have much power while driving, and sounds like it may be backfiring.

I have an Autox this sunday, so I really need to get this fixed in a hurry.
Old 11-11-05, 02:18 PM
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Sounds like the FB is overdue for a carb rebuild but I would also replace the fuel filter too.
Old 11-11-05, 02:56 PM
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Carb was rebuilt just recently.

There is also some oil that looks like it has sprayed into the air filter chamber
Old 11-11-05, 08:12 PM
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I would also check for a vacuum leak. Well I would still check for the simple things like plugs, wires, cap, and rotor and do not forget the fuel filter. My car was is the same condition as yours but when i performed a carb rebuild it fixed my engine shutoff at low rpm's.
Old 11-11-05, 10:19 PM
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Verify that you have spark on your leading ignition...
Old 11-12-05, 07:41 AM
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Could be a chip out of an apex seal corner piece.
Old 11-12-05, 11:17 AM
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**** just get rid of the rats nest. then check the timing. make sure you REPLACE the fuel filter. common problem with rust in the gas tanks.
Old 11-12-05, 05:52 PM
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I need to take the engine apart...its a broken seal
Old 11-12-05, 09:00 PM
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Old 11-13-05, 12:49 PM
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Pressure gauge checking each rotor, one worked fine, the other had no pressure.

Last edited by jessebs; 11-13-05 at 01:08 PM.
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